[Elecraft] K3/0 Display - for sale

[Michael Walker]

Hi All

I have a K3/0 Control Head for sale, s/n 246.

It has all the cables that go with it.

It came off a remote station that was parted out.  The radio went one way,
and the RemoteRig went another way.

Please email me off list if you are seriously interested.  My preference is
to ship to Canada or the US and payment will be PayPal so we are both
covered.

it might be handy to have a spare as these are not available anymore.

Maybe someone wants to interface it with NodeRed to control any radio?  :)

Mike va3mw
m...@portcredit.net
shack:  416-605-8463
Ham Shack Hotline: 12080
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Re: [Elecraft] KPA500 transformer removal

[Michael Walker]

Not really.

Just label the wires so you know were to put them when it comes back.

Undo the bolt and pull the big torroid out.  You'll notice the KPA500 is a
lot lighter now.  :)

73, mike va3mw

On Tue, Nov 22, 2022 at 6:42 AM  wrote:

> I am sending my KPA500 to Watsonville for service. The shipping
> instructions
> say to "remove the transformer unless otherwise instructed."
>
> Are there any instructions for transformer removal? I've looked at the
> assembly instructions and it seems straightforward.
>
> Are there any potential pitfalls that I should be aware of?
>
>
>
> Dave N1IX
>
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Re: [Elecraft] Elecraft CW Net Announcement

[James Walker]

Every Sunday, I look forward to your description of conditions there in your 
neighborhood as a part of your invitation to participate in the CW nets. You 
have a thoughtful eye for the conditions and an accomplished talent for 
expressing what you see. Thank you for your energy and support of the Elecraft 
community and our hobby.

Jimmy Walker
WA4ILO
Macon, GA

> On Nov 12, 2022, at 8:16 PM, kevin  wrote:
> 
> Good Evening,
> 
>After a snowy week it is nice to see the sun again.  On Wednesday a bird 
> got my attention from about ten feet away.  He gave me enough time to look 
> him up on three websites.  I watched a Red-breasted sapsucker make his 
> characteristic row of holes around a tree.  First one tree, then the next, 
> all within easy view so I could check his field marks.  Woodpecker #8 on this 
> list https://wildlifeinformer.com/woodpeckers-in-oregon/  While I have not 
> seen him before, I have heard his call; part of which mimics the CW you hear 
> the day after a contest in any rhythmic sound. You know it is CW, you are 
> just not sure which  language they are using :)
> 
>The sun has some large, dark spots.  A pinhole camera should resolve them 
> onto a plane surface.  There is a moderate amount of solar flux, the auroral 
> oval is active.  A few of the spots could flare but any CME would miss us.  
> However, if an X class flare erupts it blanks the hemisphere facing the sun 
> no matter where the spot is placed.  I wonder if radio communication is even 
> possible near a class O star.  We're lucky to be orbiting a more modest star.
> 
> 
> Please join us on (or near):
> 
> 14050 kHz at 2300z Sunday  (3 PM PST Sunday)
>  7047 kHz at 0100z Monday  (5 PM PST Sunday)
> 
> 73,
>   Kevin.  KD5ONS
> 
> A strange game, the only winning move is not to play.
> 
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Re: [Elecraft] W2 Software

[Michael Walker]

Hi John

I have used Com ports on Win 11 without issue.  If you have one, you will
want to check in device manager and see if you see the port.

73, Mike va3mw


On Wed, Oct 19, 2022 at 5:28 PM John Chappell G3XRJ  wrote:

> Can anybody confirm that Elecraft W2 software runs on a Windows 11 PC.
> Mine is fine on Win10 PC but on Win11 PC the setup screen wont open to
> choose COM Port.
>
> Thanks 73
> John G3XRJ
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Re: [Elecraft] DX Clusters reccomendation

[Michael Walker]

Hi Paul

I run va3mw.dxcluster.org on port 41112.  It is a DX Spider node and I am
connected to ve7cc as well.

It does not have world wide spots on it but only posts spots originating
from zones 2, 4 and 5.  By limiting spots at the source (inbound to my
cluster) it cuts down on traffic and any extra filtering at the client end.

If that works for you, you are welcome to use it.

Mike va3mw


On Thu, Jul 28, 2022 at 10:43 AM  wrote:

> Paul,
>
> You will probably find what you want to know here:
> https://www.dxcluster.info/
>
> Your first choice to try are some of the more "open" clusters:
> VE7CC-1
> W3LPL
>
> Part 2 is interpreting what you see. Since many DX Clusters report
> everything they are sent worldwide, Log4OM is probably like other loggers
> in that there is a way to limit what you see to a distance range circle
> around your locator. You should consult the Log4OM docs for setting that
> parameter.
>
> Jack Spitznagel
>
> -Original Message-
> From: elecraft-boun...@mailman.qth.net 
> On Behalf Of Paul Huff
> Sent: Thursday, July 28, 2022 10:23
> To: Elecraft Email List 
> Subject: [Elecraft] DX Clusters reccomendation
>
> I'm starting to setup Log4OM on my new computer and it is "talking"
> great to my KX3.  The software has more bells and whistles than I could
> ever imagine using.  One of it's features is the ability to connect to
> various DX clusters for spotting.  This is something that I have never done
> in the past but it looks like a very nice tool to use.  Log4OM has a long
> list of clusters. Does anyone have a recommendation for one or two of the
> more popular and reliable ones to try out?
>
> Thanks and 73,
>
> Paul - N8XMS
>
> 100% QRP/CW
>
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Re: [Elecraft] New wattmeter plans?

[Michael Walker]

Many of us remote operators have interfaced most watt meters that have an
RS232 port to be web based.

The investment can be as basic as a Raspberry PI, USB/RS232 adapter and the
cable that goes with the wattmeter.  Using the NodeRed hardware integration
tool it will give you a web based access to the watt meter (and most other
devices).

I can see live RF transmission data such as RF power on my iPhone, Macbook,
PC or anything else that has a web browser on it.

There is a group on groups.io that has 95% of the hard work done for you
and you don't need to reinvent the wheel.  Just bolt it on the car.  :)

I have used it with my W2 and my LP100a.  Very handy.

Mike va3mw


On Fri, Jan 14, 2022 at 2:49 PM Dan Brown  wrote:

>
> Steve — To your point - they’re aimed at different uses.
>
> I’ve got a W2 - quite happy with it. It’s perfect for what it does. Stays
> in line, let’s me know what’s going on between the rig and the antenna, and
> I can use it remotely — which is how I generally operate — even if remotely
> is just one part of the house to another.
>
> Would love to see a refresh and modernization - of the software if nothing
> else. Maybe build the controller part on an ESP32 type platform. Make it
> WiFi or Bluetooth connected… Who knows. Possibilities are endless.
>
>
>
> --
> daniel.h.br...@gmail.com
>
> > On Jan 14, 2022, at 5:25 PM, Steve Masticola via Elecraft <
> elecraft@mailman.qth.net> wrote:
> >
> > Bob, I own a Bird 43 and a few slugs. Problems for station use: It's
> not autoranging, doesn't directly measure SWR, and it's a bit cumbersome to
> leave on a shelf top. I tried yesterday and I didn't have a good place for
> it where it wouldn't be in the way of something.
> >
> > 73, -Steve WX2S
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Re: [Elecraft] Parts swappers -- is this a real "thing"

[Michael Walker]

If it is a real thing, I would have tripped over it by now.

However, if you are selling an FT101ZD with 6146B tubes in it, that might
be a different story.

73, Mike

On Fri, Oct 29, 2021 at 9:52 AM Greg Mitchell  wrote:

> My personal opinion is that it's not a real thing (at least not as enough
> volume to matter). If it really bothers you, get some of those void
> warranty stickers so you know if the radio has been opened.
>
> On Fri, Oct 29, 2021 at 9:32 AM Anthony Wanschura 
> wrote:
>
> > Hi all,
> >
> > I've seen a few K3 For Sale ads that mention "parts swappers". Has this
> > really been an issue?
> >
> > It makes me hesitate to put my K3 up for sale.
> >
> > 73,
> > Tony   KM0O
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Re: [Elecraft] HELP! XFINITY SHUT OFF INTERNET DUE TO HAM ANTENNAS

[Michael Walker]

I guess hooking up the KPA500 right to your Xfinity Coax and doing
automated FT8 on 20M would not be the best thing to do.  :)

Sorry, I couldn't resist.

And, seriously, if it was me, I would head to the main local office if you
can. find the manager or owner and request him to show the data that proves
what is going on.  Don't be afraid to ask him if he is guessing or does he
have empirical evidence.  Take some technical help with you if you need it
and be professional.

I would also say, you have no proof as my internet works fine even when I
transmit.  Come over and watch for yourself.

Also, is the lack of internet affecting your health and safety?  Ask them
if they wish to take the liability for that.  Are there other ways you can
go on the offensive?

Best of luck, Mike va3mw


On Wed, Oct 20, 2021 at 7:56 PM Gary K9GS  wrote:

> Hi Eric,Xfinity is a closed system.  If your amateur radio operations are
> causing problems it is their problem to fix.That said, a non ham friend
> back in WI has been having recurring outages on his Spectrum system.
> Technicians have been out to his house several times and they acknowledge
> that there is a problem in his subdivision.  Spectrum has documentation of
> the outages.The last visit by Spectrum the technician said that the problem
> was probably caused by a ham in the neighborhood.   As far as I know there
> are no hams near him.  The problem is that Spectrum doesn’t want to spend
> the time or the resources to fix the problem. It's just easier to blame the
> neighborhood ham.I explained this to my friend and he recently was told
> that Spectrum was going to replace the trunk lines and distribution amps in
> the subdivision.  No committment on a date yet.73,Gary K9GS
>  Original message From: eric norris via Elecraft <
> elecraft@mailman.qth.net> Date: 10/20/21  2:22 PM  (GMT-05:00) To:
> Elecraft Reflector  Subject: [Elecraft] HELP!
> XFINITY SHUT OFF INTERNET DUE TO HAM ANTENNAS Dear Gang:Xfinity, our
> internet provider, showed up at 7:30am this morning, to explain to the XYL
> that we were being cut off for good because my amateur radio activities had
> caused wide area outages.  Oddly, these wide area outages did not include
> my own house.  They told her the antennas themselves--absent any
> power--were the problemThe last time I was threatened, I installed chokes
> and opto-isolaters on our shielded ethernet lines, and after being told
> they use 14Mhz as their carrier frequency, I have stayed off 20m, only
> using 100w unless I'm in a rare contest.  I asked to speak to a technical
> guy--they gave me a number which I called, but he never called back.Any
> Ideas?  Does anyone have a contact at the ARRL, or know a communications
> lawyer?  Comcast/Xfinity will be back out here at 2pm Pacific time--I'd
> appreciate any help.  My XYL depends on an internet connection to work.
> Being off the air is unimaginable.Frantic,73, Eric WD6DBM
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Re: [Elecraft] KX3 lithium ion polymer internal battery

[Rob Walker via Elecraft]

This question relates to the wiring inside the KX3 and not about battery 
technology… I did not write the question well.

I have received back a lot of good advice on batteries, all correct and thanks, 
 yet I do want to know about the KX3 wiring if you can help me please.

For interest only, the battery I have made is not a LiPo (never used even in my 
RC gliders, as they do catch fire) it is a lithium Ion.  The polymer part 
refers to it not being an 18650 cell (as used in laptops, power tools and 
automobiles) but instead the flat 3.7v cells as found in tablets and phones.  I 
may well have used the wrong terminology. 

Anyway, can anyone help me with the wiring.   Can I attach the battery to pins 
number 1 and 3 of the 10pin P3 connector ? 

I have asked Elecraft direct and while waiting on their reply thought I would 
post here.  Hope you can help 

Thanks to all who have responded and 73

Kind Regards,


Rob Walker
M5REW



On 4 Oct 2021, at 18:09, Rob Walker  wrote:



I have made myself a 14.8v lithium ion polymer battery, with battery 
management system and audible alarm, that fits inside the KX3. 

Ideally I would like to leave it in the KX3 to charge and charge it by 
connecting a 15v (max 15.5v) PSU to the DC connector of the KX3.

If I connected my battery to pins 1 and 3 of the 10pin P3 connector would this 
battery power the KX3 and charge when connected to an external 15v PSU…. 
Without damaging the KX3 of course ?


Kind Regards,


Rob Walker


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[Elecraft] Fwd: KX3 lithium ion polymer internal battery

[Rob Walker via Elecraft]

I have made myself a 14.8v lithium ion polymer battery, with battery 
management system and audible alarm, that fits inside the KX3. 

Ideally I would like to leave it in the KX3 to charge and charge it by 
connecting a 15v (max 15.5v) PSU to the DC connector of the KX3.

If I connected my battery to pins 1 and 3 of the 10pin P3 connector would this 
battery power the KX3 and charge when connected to an external 15v PSU…. 
Without damaging the KX3 of course ?


Kind Regards,


Rob Walker


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[Elecraft] W2 200W HF Coupler for sale

[Michael Walker]

I have 1 brand new never used (due to an order mistake that I made) 200W HF
coupler for the W2 watt meter that I would like to part with.  It is
literally brand new in the box!

https://elecraft.com/products/dchf-200a_1-8-54-mhz-0-1-200w-additional-coupler

$190 US  and I'll ship for free via Canada Post ground
to Canada and the lower 48.   Payment via PayPal Goods only (not friends
and family).

Email me off the list if you are interested.  Canadians, the normal dollar
conversion applies.

Mike va3mw
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Re: [Elecraft] KPA1500 Power Level

[Michael Walker]

Does Expert publish a list of radios they will not warranty their amp on?

Mike va3mw 

> On Sep 18, 2021, at 10:16 PM, Jim Brown  wrote:
> 
> For a long time, W8JI, who has designed ham power amps, has observed that 
> some JA rigs have this problem. And for a long time, the mfrs have failed to 
> fix them. Just like they have taken decades to fix clicks, and at least one 
> (Yaesu) has been building rigs with lots of splatter on SSB.
> 
> 73, Jim K9YC
> 
>> On 9/18/2021 6:46 PM, Jerry Kirshenbaum wrote:
>> re: it'd pay to review the SPE
>> In May 2021 I bought a SPE 1.5K-FA 2nd generator new from the distributor in 
>> Texas. I’ve been using a SunSDR2 DX 100W transceiver while I wait to receive 
>> my K4D. The 1st time the finals blew may have been operator error. 
>> Subsequently, I discovered that the software allows one to limit the power 
>> on each band. So I set the SPE to mid power (it has low, mid, high settings) 
>> and determined the correct output for 700-800W. That left at least 20% head 
>> room.  Despite this seem lying failsafe procedure, the finals blew again. 
>> The distributor would not cover this under warranty on the grounds that my 
>> radio has spurious spikes which blew the finals. In fact, if you run the 
>> “wrong” radio with this amp, you don’t have any warranty because the radio 
>> is indicted as the cause of failure sight unseen.
>> The amp when it works is wonderful. One case, 24 lbs, very quiet. I had 
>> everything linked together with my SteppIR DB18E through DxLab.
>> Two times back to the distributor for repair in 3 months was enough. I sold 
>> it and now have a KPA1500 which is working great.
>> BTW, the distributor also says the IC-7300 (my backup) has spurious spikes 
>> as well and presumably is another transceiver not covered under their 
>> warranty.
>> 73, Jerry / K0ES
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[Elecraft] W2 200w HF couplers for sale

[Michael Walker]

I have 2 brand new never used (due to an order mistake that I made) 200W HF
couplers for the W2 watt meter that I would like to part with.  They are
literally brand new in the box!

https://elecraft.com/products/dchf-200a_1-8-54-mhz-0-1-200w-additional-coupler

My mistake is your gain as the car sales man said.  LOL

$360 US for the pair and I'll ship for free via Canada Post ground
to Canada and the lower 48.   Payment via PayPal Goods only (not friends
and family).

Email me off the list if you are interested.  Canadians, the normal dollar
conversion applies.

Mike va3mw
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[Elecraft] W2 Sensors - calibration

[Michael Walker]

Hi All

At the moment, I am using a 200 watt HF W2 Sensor on VHF, and while I
realize it isn't far from perfect, it is perfectly good enough to tell me
if I have LOTS of watts out on a remote VHF station or no watts out.

I could calibrate it against a known good watt meter if need as that is
easy enough to do.

Or, could I convert it to a VHF 200 watt sensor as it looks like Elecraft
is not stocking them anymore based on trying to order a couple from the web
page.

The W2 is a great meter for remote operation and we actually use NodeRed on
a RPI to make it web readable.

Mike va3mw
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Re: [Elecraft] KPA500 and excessive drive

[Michael Walker]

You likely blew one of the Caps in the Low Pass filter.

If you open it up and have a look, you will clearly see the damage.

I've seen this done before on a friends that I had to repair for him.

I just replaced the blown parts and then swept it with a VNA to ensure it
was still operational.

Mike va3mw


On Sun, Jul 4, 2021 at 3:29 PM Jim Weatherford via Elecraft <
elecraft@mailman.qth.net> wrote:

> Last night I was trying to work 80m for the first time in a while, and my
> KPA500 faulted. I was tired, and didn't pay attention to the fault code but
> simply cleared it and tried again. After a couple of rounds of this, I
> smelled something burning and shut off the amp for the night.
> This morning I realized that the K3 output power was set to 100W on 80m
> even when the KPA500 was in operate mode, which explains the "06 PWRIN HI"
> codes when I looked at the fault table. Uh oh!
> Luckily, it looks like I'm still getting full power out on all other
> bands, so I believe the finals are OK, and I probably smoked components in
> the 80m portion of the KPA500 LPF bank. Any thoughts as to which components
> are most likely to be damaged by excessive input power? Should I simply
> replace all 8 caps and 3 inductors?
> 73,Jim WU6K
>
>
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Re: [Elecraft] HOA Crap

[Michael Walker]

Rick

I think you need to look at the average age of today's ham (hopefully, it
is going down).

Ham radio is what you make it.  Your version is just fine for you.   How
you actually get on the air is not a law.  It isn't a requirement.  All you
have to do is work within the legal requirements for your country.

What would you do when you have to move into assisted living?  Where the
house is not your own.  Will that take you off the air?

Make contacts any way you can.  For you, get on the air and make contacts.

BTW, you can't force your vision on anyone.  You can preach it, but that
doesn't mean anyone has to listen to it.  :)   Everyone is wired just a bit
differently (some like me, a  lot different).


73, Mike va3mw


On Tue, Jun 29, 2021 at 12:47 AM Rick Bates, NK7I 
wrote:

> No!
>
> Rent a station is NOT ham radio.  Argue all you want; but ham radio is
> about RADIO, even if it's just owning and using an HT because that's all
> you can manage.
>
> You may as well log cell or Skype phone calls or EchoLink contacts (or
> IRLP, DMR, DStar etc) as use remote stations that are not yours; they
> have equal merit; none, zilch, nada, nil.  Only a few even have a radio
> involved; the rest is internet links; not ham radio.
>
> EVERY entry in my log is from MY gear, a station assembled by ME
> (sometime with help building etc), a result of MY best efforts at THAT
> point in time.  It's a matter of pride and is a moral imperative to my
> standards.  Yes, it means I don't make EVERY contact or work every DX
> when I want; I have to wait for propagation, then hope I've done
> enough.  Yes, I've put money into equipment to own, use and maintain;
> not someone else's pocket to rent.  But I EARNED every log entry.
>
> I pity you some; you've lost your compass.  Yes, you can get DXCC in an
> afternoon, moving sites to best apply propagation <>.  It's NOT
> your station, it's not worthy of your log; it has no value, because you
> purchased your log and awards instead of investing your time and
> efforts. It's your ego being stroked by your wallet.
>
> Ditto using remote receivers to augment your own; your station can or
> cannot; it's THAT simple.
>
> You have ZERO emergency preparedness without a radio; one of the tenets
> of ham radio.  You can't be prepared if you don't own a radio; if the
> systems are down, you have nothing.  An HT can at least saturate the
> neighborhood to check on others around you.
>
> If you are so HOA bound that nothing outside can grow as an antenna (has
> NEVER been totally exclusive; stealthy has a market); build a club
> station where you can; drive there to operate it and log from that.  If
> it is an emergency and there IS still access, then use the remote if you
> have nothing else.  At least own and learn to use a portable radio (KX3,
> dual band HT, SOMETHING).
>
> Yes, I operate a station remotely; MINE.  And if done well, no one knows
> where you really are at the time of the contact.
>
> But you won't ever sell me that not owning a radio at all and to rent
> and operate remotely is even CLOSE to being a ham.  For pity's sake,
> hand the man an HT!
>
> Harsh, perhaps.  But it's also one reason to escape the blasted HOA
> world too to make your own decisions. HOA is an infestation, a virus
> that allows others to make choices for you, even if you don't like their
> decisions.
>
> /rant off; hot button; this arena gets old fast/
>
> 73,
> Rick NK7I
> More curmudgeonly every year it seems, ain't nuttin wrong with old
> school, it's just not as popular
>
>
>
> On 6/28/2021 8:41 PM, William Levy wrote:
> > Gents,
> >
> > Let me remind all of you in an HOA that you don't need to put up
> antennas.
> > You can join remote ham radio dot com and use giant antennas all from
> your
> > website. Much better stuff than most of us ever dreamed up HOA or not.
> >
> > I live in NYC. I don't even have a Walkie. But I am full on remote HF
> > 24/7/365.
> >
> > It's a great world. Think of it as a resource. It's a NETWORK resource.
> And
> > you don't have to manage it.
> >
> > Bill N2WL
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Re: [Elecraft] Don’t throw those old DOS computers away

[Michael Walker]

I agree with Jim on this one.  :)

Mike va3mw


On Mon, Jun 28, 2021 at 4:55 AM Jim Brown  wrote:

> Yes, he SHOULD throw it away and learn modern logging software. Among
> other things, that modern software can easily link computers from
> multiple stations in a club setup. That's important, because each
> station can see the other's log. We work QRP battery with a single K3,
> and are often weak at the other end of the QSO. When logging computers
> are linked, each station sees the QSOs we've already had on 20 (easier
> copy) when we work them on 40, 80, and 15, so it's rare for them to need
> a fill if they are networked.
>
> It was disappointing to see that so many hams fail to continue their
> ongoing education by learning new stuff, like modern logging software.
> I'll be 80 in the fall, a ham since age 15, BSEE in 1964, and I still
> try to learn new stuff every day. BTW - I do LOTS of FT8 and MSK144 on
> 6M and FT8 on 160M, our QRP CW operation was all CW. W6JTI and I made a
> combined 680 QSOs. I've been using K1JT's digital modes for more than
> ten years. So have a bunch of OTs I know. And when I was taking a break
> from CW, I worked FT8 on 6M (along with K6EU, our primary VHF op) to
> pass out our rare grid (CM86). That VHF station ran high power and was
> not part of our QRP FD operation from a contesting point of view. Tom
> and I were simply lighting up our rare grid.
>
> 73, Jim K9YC
>
> On 6/28/2021 1:34 AM, David Wilcox via Elecraft wrote:
> > One of the hams running our CW tent used his old favorite logging
> program and brought along an old DOS computer to run it……. I can’t remember
> the name of the program but it worked well and he racked up a good score.
> Everyone was shocked to see the old big DOS computer sitting on the table.
> I guess one should never throw anything away that works and you are
> comfortable with it.
>
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Re: [Elecraft] k3 STEPPIR 6Meters

[Michael Walker]

I added the 6M element and wasn't happy with the performance.

I remodelled it and I was able to improve a number of things and posted the
measurements on my QRZ page if you are interested.

Not only did it model better it performed better and loaded better as the
SWR was lower.   A bunch of  my friends tried it and they were pleased with
it as well.

In my design, you can make the changes to a steppir on a tower if you can
reach your passive 6M element.   You don't have to order any parts to make
this work.

This was for the 3EL Steppir.

Mike va3mw


On Sun, May 2, 2021 at 8:42 AM Joe Subich, W4TV  wrote:

> On 2021-05-02 3:59 AM, turnbull wrote:> Dear OMs and YLs,I believe if
> you check online there is a
> > modification to mounting the additional parasitic element possibly
> > even adding yet another which is supposed to greatly improve the
> > three element SteppIR six meter performance over that of the three
> > element with the single parasitic element.
> That modification is by GM3SEK (about 2015).  I believe is was in one
> of the UK publications.  In any case, Doug is correct, the modification
> adds both a director and reflector turning the 3 element SteppIR into
> a proper four element yagi on a 12.5 foot boom.
>
> 73,
>
> ... Joe, W4TV
>
>
> On 2021-05-02 3:59 AM, turnbull wrote:
> > Dear OMs and YLs,I believe if you check online there is a modification
> to mounting the additional parasitic element possibly even adding yet
> another which is supposed to greatly improve the three element SteppIR six
> meter performance over that of the three element with the single parasitic
> element.As I have a four element SteppIR, this has not been tried
> here.Worth investigating.73 Doug EI2CNSent from my Galaxy
>
>
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Re: [Elecraft] Product Availability Was: Re: QSO Today Expo - Estimated K4 related shipping schedule

[Michael Walker]

Barry

Flex is actually shipping radios today.  The world wide sales have  been so 
strong that they have not been able to keep up to the demand but those 
timelines are getting much shorter every week.  The website has the current 
delivery delays for each product. 

Much of the electronics industry has been impacted by two significant fires in 
Japan related to two electronics houses. The challenges come from the fact 
that, while there are optional parts you can use it requires retooling to use 
those parts as they’re not the same physical sizes or functionality. 

However, companies like Flex stock pile parts when possible. Pre-Covid delivery 
times for parts were measured in 2 to 4 weeks. Now they’re measured in months 
and sometimes up to a year. You can’t ship a radio, or anything unless it is 
100% complete. Sometimes it’s only a small part that holds up an entire 
finished product.   Imagine ordering your new TV only to find out that the F 
connecter on the back of the television wasn’t available or there was no remote 
to turn it on and off.  

Regardless of who your vendor of choice is, hams need to support them and 
purchase product. Keep that in mind to help keep the amateur economy strong.  
If you do not support them, it’s hard to pay employees and it’s hard for their 
employees to put their kids through school. It all comes around. 

73




> On Mar 31, 2021, at 4:36 PM, Barry Baines via Elecraft 
>  wrote:
> 
> Mike:
> 
>> On Mar 31, 2021, at 1:15 PM, W0MU Mike Fatchett  wrote:
>> 
>> The point of all of this is why is Elecraft not on this list telling us 
>> these things like they used to?
>> 
>> I hear lots of excuses.  Sure there are supply line problems for everyone.  
>> HRO still has lots of product.  Elecraft has a big competitor in FLEX are 
>> they having similar issues?  I hear that some big box radios have some wait 
>> times but not in the years category.
> 
> Flex has similar issues.  The Tuner Genius has been under development since 
> 2017.  They announced at the QSO Today Expo that those at the head of the 
> line (e.g. those that ordered the Power Genius XL  in early 2017 when the 
> tuner was packaged with the amplifier0  should get theirs in 2nd Quarter 
> 2021, 4+ years after product announcement.  My Power Genius was delivered in 
> May 2018 and I still can’t use it with a EFHW antenna without the tuner.  
> Maestro is currently on back order.  Their website shows their transceivers 
> on back order with no expected availability times listed.Flex has gone 
> through its own ’transition’ during Covid where final assembly was brought 
> ‘in house’ on their transceivers as their outside vendor shut down.  The 
> Power Genius and Antenna Genius are built by 4O3A in Montenegro for Flex 
> where they have their own issues and ability to ship product to the US is 
> constrained.  
> 
> HRO may have lots of product but necessarily the product that I want.  I 
> ordered from HRO last November the West Mountain Radio ‘PWRspeaker’ that is 
> not expected until at least May.  It is produced in China.  So between parts, 
> assembly, and transport across the Pacific there are plenty of reasons for 
> delayed deliveries.  The Suez Canal debacle is but one part of the “supply 
> chain’ impacts that also includes container shortages, port congestion, 
> intermodal doublestack railcar availability, intermodal terminal congestion 
> in the interior, and drayage impacts.  
> 
> Another example: I ordered three 4K 15” portable displays through Kickstarter 
> in July 2020 with expected delivery in October 2020 from China (Two will be 
> used with two GeoChron2 Digitial 4K devices that I had purchased through HRO 
> in January 2020) .  Kickstarter charged my credit card in September and 
> e-maiiled on 22 OCT 20 "Production is in full swing and we expect to begin 
> shipping by the end of October.”  On 6 NOV 20 I received an e-mail from 
> Kickstarter with subject line “Production Delays” ("It seems like many large 
> electronics companies locked up all the raw materials before the funds were 
> released from Kickstarter”) deliveries would not take place until February 
> 2021.  No update received since then.  I have no idea at this point where 
> they stand with expected deliveries.  Next week I will start making inquiries 
> again.
> 
> What we all took for granted regarding ‘immediate gratification’ on what we 
> ordered being immediately available “before Covid” is no longer the case.  It 
> will be a ‘long time’ before we see a return to ’normal’ as economic activity 
> dramatically picks up as Covid-19 restrictions are eased (thanks to 
> vaccinations) and pent up demand for everything exceeds available supply.  
> Prices will consequently rise.  Add in the proposed $2-3 Trillion in 
> government spending on “infrastructure” (further competing for scarce 
> products/materials that the private sector also needs)  and the proposed 
> $2-$3 trillion increase in taxes (that will 

Re: [Elecraft] Where are the K4 reviews?

[Michael Walker]

It is a good thing none of you are waiting for a new Bike.

It will be 2023 before the bike industry recovers.

Or build a house.  Here in Canada (where we have lots of wood) lumber
prices are up over 180%.  2x4" x 8ft aren't cheap.

Mike va3mw
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Re: [Elecraft] Why is my K3 off frequency?

[Michael Walker]

If your Net Control station has an accurate enough ear to tell you are 12Hz
off frequency on an SSB net, I would ask him to align it for you.

On 80M, you may be only off frequency by a few hz.

12Hz at 50Mhz is really nothing.  If it concerns you, you will need to
align it with the correct alignment tools and a trip to a repair facility
with a calibrated frequency standard is in order.  If it was me, I wouldn't
worry about it too much.  You can remind your Net controller that that is
what the RIT control, is for on his radio.

If I remember correctly, the K3 accuracy is 5ppm and at 50Mhz that is +/-
250hz at 50Mhz.  It is only 15Hz at 80M.   If my assumption is correct or
PPM, your radio is within Spec.  I'm sure others will correct me if I
am wrong.

Mike


On Tue, Mar 23, 2021 at 6:19 AM Charles Tropp 
wrote:

> Hi,
> Last night my local ham club scheduled their first ever 6Meter Net and
> Roundtable for 50.135Mz. I operate USB very rarely, preferring CW for all
> of my Contesting and DX work. Last night the net control station advised me
> that I was 12Hz too high and that he had to use his RIT control to tune to
> me. When I turned on my XIT and transmitted down 12Hz I was right on his
> frequency. This was confirmed by other callers as well. I have also heard
> this problem mentioned in the past when checking into occasional 75M nets.
> Is there an adjustment that I can or should make aside from using my XIT?
>
> Thanks for any assistance you can provide.
>
> --
> *73, Charles N2SO*
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Re: [Elecraft] KPA500 protection

[Michael Walker]

Hi Andy

I blew my 6M Caps one day, but it was 100% my stupidity when I kept
bombarding it with a full 100w carrier when I had the amp to go 'online'
when it was turned on.  This is a firmware setting.  It tripped off the
first time.  I reset it and hit it again (not thinking) and the CAPs blew.
I fixed it myself and all I had to do is replace the caps (and repair the
board).

I ran mine for years on my remote and made many many mistakes and never had
an issue and I tripped it offline a ton of times.

In the emails you saw today, you need to ask about the mechanics of the
failures first.

Mike va3mw


On Thu, Mar 18, 2021 at 3:12 PM Andy Durbin  wrote:

> Two post today about KPA500 that seem to have been damaged because the
> built in protection was inadequate.  What's going on?
>
> In my station the KPA500 is protected against stupid errors that cause
> high SWR by the KPA500 itself, by my KAT500, by my LP100A, and by my
> Arduino controller.  I hope one of these will stop the smoke getting out.
>
> 73,
> Andy, k3wyc
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Re: [Elecraft] Signals wild...signals caged

[James Walker]

Thanks David and Wayne. I'm older now but your stories remind me how much I've 
enjoyed amateur radio over all these years.. I'm gonna go home today and fire 
up the rigs. I grew  in the early 60’s working from a dirt floor in a dug out 
basement of a suburban home working with very inexpensive and temperamental 
rigs. Making any contact was a cause for celebration. Maybe it's gotten too 
easy working with the newest rig technology. I guess that explains my 
continuing love for QRP.

James Walker
WA4ILO
Macon, GA




> On Jan 29, 2021, at 12:01 PM, Wayne Burdick  wrote:
> 
> Great hearing all these stories about CW (and rare bird sightings). Thanks, 
> all. 
> 
> Wayne
> 
> 
> 
> elecraft.com
> 
>> On Jan 29, 2021, at 8:54 AM, David Olean  wrote:
>> 
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Re: [Elecraft] K4 QSO With Wayne

[Michael Walker]

Nice

I was just trading a few emails with him.

Mike va3mw


On Mon, Jan 25, 2021 at 11:22 PM Tony <73gu...@gmail.com> wrote:

> All:
>
> Just had a CW QSO with Wayne N6KR on 40M with his K4. The rig sounds
> great on the air.
>
> I didn't realize I was talking to the man who designed my FB K3S :  )
>
> Thanks Wayne.
>
> Tony -K2MO
>
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Re: [Elecraft] KPA500 Bypass Power Limit?

[Michael Walker]

Hi Eric

A 100 watts works without issue.

What sort of power did you have in mind?

Mike


On Fri, Dec 25, 2020 at 8:01 PM eric norris via Elecraft <
elecraft@mailman.qth.net> wrote:

> How much power can I run through a KPA500 that is in BYPASS, or turned
> off?  That is, using exciter power only?
> Thanks!
>
> 73, Eric WD6DBM
>
> 
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Re: [Elecraft] KPA500 P command not working from RPI and node red, any ideas?

[Michael Walker]

To add to my previous email, if you check with the Hams on the Node Red
Amateur group in groups.io, someone will have a KPA500 flow that already
works.

nodered-hamra...@groups.io

Mike va3mw


On Sun, Dec 20, 2020 at 10:24 PM Michael Walker 
wrote:

> Hi Dave
>
> What is the display saying when you’re trying to power it up?. I had
> NodeRed code running for it just fine never had an issue with it.
>
> I found at times I managed to get it into the binary upload mode which
> would mess it up.
>
> Mike VA3MW
>
> > On Dec 20, 2020, at 9:45 PM, davedkv  wrote:
> >
> > I've been trying all day to get the KPA500 to "wake up" with a P
> command sent
> > from a raspberry PI zero W running node red without success. Every other
> > command works perfectly.  If I hook up a laptop to the KPA500 it wakes up
> > every time using the KPA utility of course, anyone know what the
> difference
> > is?
> >
> >
> >
> > --
> > Sent from: http://elecraft.365791.n2.nabble.com/
> > __
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Re: [Elecraft] KPA500 P command not working from RPI and node red, any ideas?

[Michael Walker]

Hi Dave

What is the display saying when you’re trying to power it up?. I had NodeRed 
code running for it just fine never had an issue with it.

I found at times I managed to get it into the binary upload mode which would 
mess it up. 

Mike VA3MW

> On Dec 20, 2020, at 9:45 PM, davedkv  wrote:
> 
> I've been trying all day to get the KPA500 to "wake up" with a P command sent
> from a raspberry PI zero W running node red without success. Every other
> command works perfectly.  If I hook up a laptop to the KPA500 it wakes up
> every time using the KPA utility of course, anyone know what the difference
> is?
> 
> 
> 
> --
> Sent from: http://elecraft.365791.n2.nabble.com/
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Re: [Elecraft] Kinda cool graphic of solar activity

[Michael Walker]

If you really want to learn about the Solar Forecast, watch this.

This is all new science to solar storms and the talk directly impacts HF
operators.

I won't spoil the ending, but if you want to see 10M open 24 hrs/day, it is
worth watching.

https://youtu.be/lRNJPkQPo_g

Mike va3mw


On Wed, Dec 2, 2020 at 11:17 AM Louandzip via Elecraft <
elecraft@mailman.qth.net> wrote:

> From ESA
>
> http://www.esa.int/var/esa/storage/images/esa_multimedia/images/2020/11/soho_25_years_of_solar_imaging/22352502-1-eng-GB/SOHO_25_years_of_solar_imaging_pillars.jpg
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Re: [Elecraft] Used antenna - Arecio antenna collapses

[Michael Walker]

Sorry, not funny.

Arecibo was a great site and there are a number of Hams that are part of
the dish and who were employed thanks to the installation.

It is a pretty sad day, not only for the loss of technology, but also their
livelihood.

Mike va3mw


On Wed, Dec 2, 2020 at 9:01 AM weave...@usermail.com 
wrote:

> EME (Earth - Mars - Earth) ? :-)
>
> 73,
> Bill WE5P
>
> Comfortably Numb
>
> > On Dec 2, 2020, at 08:43, Dave Sublette  wrote:
> >
> > Pick up only.  Bring a big truck.
> >
> > K4TO
> >
> >> On Wed, Dec 2, 2020 at 5:52 AM Douglas Hudson 
> wrote:
> >>
> >> If you want a good buy on a used, high gain antenna, the Arecibo radio
> >> astronomy antenna will soon be up for grabs.  Sold as is, where is.
> Some
> >> assembly required.
> >>
> >>
> >>
> https://www.npr.org/2020/12/01/940767001/arecibo-observatory-telescope-collapses-ending-an-era-of-world-class-research
> >>
> >>
> >> Doug
> >> K7CUU
> >> __
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Re: [Elecraft] Fair price for a used KPA500?

[Michael Walker]

I agree with Buck at about the 80% point.

If you are selling, I would start there and move down if you need to.

Mike va3mw


On Fri, Nov 20, 2020 at 9:54 AM Buck  wrote:

> As a general rule I use 80 - 85% of retail for a current production rig
> in excellent condition.  Elecraft gear would be on the high side.
>
> k4ia, Buck
> K3s# 11497
> Honor Roll  8B DXCC
> EasyWayHamBooks.com
>
> On 11/20/2020 9:42 AM, Jim Miller wrote:
> > I'm looking to buy a used KPA500 from a friend. What would be a fair
> price?
> >
> > 73
> >
> > jim ab3cv
> > __
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Re: [Elecraft] KPA-1500/FlexRadio 6400

[Michael Walker]

oppsss...  my bad!

I saw KPA500 (not 1500).  Sorry about that.

However, the cabling is the same.  :)

Mike
va3mw

On Tue, Sep 15, 2020 at 10:19 PM Dave  wrote:

> Hi Mike
>
> Actually the KPA1500 needs frequency tracking for the internal antenna
> tuner.
>
> The info I posted should help Mike. He is also welcome to contact me
> direct and I can assist.
>
> 73
> Dave wo2x
>
>
> Sent from my waxed string and tin cans.
>
> > On Sep 15, 2020, at 10:17 PM, Michael Walker 
> wrote:
> >
> > Mike
> >
> > I keep reading what you wrote, but how can you tell the difference?  The
> > Band data is the only thing that the KPA500 requires to operate.  It
> really
> > doesn't care about the exact frequency.
> >
> > If you change bands on the 6400 and the KPA500 tracks from 1 band to
> > another, then your installation is fine and you should be good to go.
> >
> > I used a KPA500 for years on a Flex 6300 without issue.For cables,
> all
> > that is required is a normal 9 pin male-female cable and then a Null
> Modem
> > Gender Bender adapter (yes, that is what they are called).
> >
> > Mike va3mw
> >
> >
> >
> >
> >> On Tue, Sep 15, 2020 at 7:33 PM Mike Stone 
> wrote:
> >>
> >> This is my first post.  I am not sure if or where the search function is
> >> located.
> >>
> >> I am running a KPA-1500 and a FlexRadio 6400.  The amplifier recognizes
> >> the band that the Flex is tuned to but it doesn’t recognize the
> frequency.
> >> Any help would be appreciated.  I am not technically proficient with
> either
> >> the Flex or the KPA-1500, so please keep it simple for me.
> >> Thanks
> >> Mike, N1VE
> >>
> >>
> >> Sent from Mail for Windows 10
> >>
> >> __
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Re: [Elecraft] KPA-1500/FlexRadio 6400

[Michael Walker]

Mike

I keep reading what you wrote, but how can you tell the difference?  The
Band data is the only thing that the KPA500 requires to operate.  It really
doesn't care about the exact frequency.

If you change bands on the 6400 and the KPA500 tracks from 1 band to
another, then your installation is fine and you should be good to go.

I used a KPA500 for years on a Flex 6300 without issue.For cables, all
that is required is a normal 9 pin male-female cable and then a Null Modem
Gender Bender adapter (yes, that is what they are called).

Mike va3mw




On Tue, Sep 15, 2020 at 7:33 PM Mike Stone  wrote:

> This is my first post.  I am not sure if or where the search function is
> located.
>
> I am running a KPA-1500 and a FlexRadio 6400.  The amplifier recognizes
> the band that the Flex is tuned to but it doesn’t recognize the frequency.
> Any help would be appreciated.  I am not technically proficient with either
> the Flex or the KPA-1500, so please keep it simple for me.
> Thanks
> Mike, N1VE
>
>
> Sent from Mail for Windows 10
>
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Re: [Elecraft] my KPA1500 and 160M

[Michael Walker]

Do you have actual antenna measurements with an analyzer?  It would be
helpful to know what the KTA500 is seeing.

Mike va3mw


On Tue, Sep 1, 2020 at 1:31 PM Daniel Carille via Elecraft <
elecraft@mailman.qth.net> wrote:

> Be sure the K3 tuner is off when using the KPA1500’s tuner.
> Dan - NB2P
>
>
> Sent from Yahoo Mail for iPhone
>
>
> On Tuesday, September 1, 2020, 12:51 PM, w5...@comcast.net wrote:
>
> This morning I put up a W7FG true ladder line 160M doublet.  Upon testing,
> the K3 internal atu does great, matches at 1.3:1.  But when I throw the
> KAP1500 in line, it gets all pissed off, throws up and faults out.  Says
> SWR
> is 99:1 !!!
>
> The Antenna:  The Apex is at 50'.  It is in a inverted Vee config, with
> both
> ends approx 20' off the ground.  I'm using 59' of the 600 ohm true ladder
> line to a Balun Designs 5KW 4:1 Balun. This is fed with 22' of Wilson
> LMR400
>
> Both the K3 internal atu, AND the KPA1500 internal atu get a great match
> on
> 80M, 1.2:1  with no issues.
>
> Honestly, most of the work on 160M is FT8 running 20 watts or less, so
> just
> using the K3 to get a successful match on 160M is fine
>
> I just wonder why the KAP1500 doesn't like the same antenna the K3 likes.
>
> Any ideas here fellers?
>
> thanks and 73
>
> 73 and GL OM DE w5sum
>
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Re: [Elecraft] Seeking comments on Ham Expo from participants

[Michael Walker]

I had to do 2 presentations.

The Q and A was really good I thought and well managed when you consider
over 26,000 people registered and about 1/2 of those showed up on Saturday,
just like a normal Hamfest.

But, yes, I have a list of things I would like to see changed for the one
in March.

73, Mike va3mw
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Re: [Elecraft] RTTY for SOTA?

[Michael Walker]

Wayne

I think doing RTTY is a good idea.  Speaking from someone who used to own a
Model 15 with Tube Terminal Unit!  :)

I still do RTTY today.

Mike va3mw


On Mon, Aug 17, 2020 at 9:27 PM Wayne Burdick  wrote:

> No, this is not a trick question :)  And yes, I'm aware that most data
> mode operation uses computer based modes like FT8 and JS9call these days.
> But read on.
>
> Of all the data modes available to ultralight adventures, RTTY is the
> easiest to use, for three reasons -- assuming you have a KX3 or KX2:
>
> - it's easy to tune in mark/space tones using the CWT display on the rig's
> LCD
>
> - text decode appears immediately on the VFO B display -- no other gear
> required
>
> - paddle-sent CW gets converted to RTTY while in FSK-D mode
>
> - no need for a computer, smartphone, etc. to do demodulation
>
> The K3/K3S, KX3, and KX2 all have these RTTY and PSK modes built-in, at
> multiple baud rates.
>
> I've made hundreds of Field Day and contest QSOs using RTTY on Elecraft
> rigs, but I was wondering...has anyone tried RTTY on a SOTA outing?
>
> If someone would like to experiment with this on a sked, I'd be happy to
> give it a go.
>
> I also have the vague notion that slower, nonstandard RTTY might be fun to
> experiment with to improve SNR and reduce bit error rate during fading.
> Thoughts on this topic would be welcome. It would be easy to add such a
> mode to our KX line.
>
> 73,
> Wayne
> N6KR
>
>
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Re: [Elecraft] Calibrating RX on the K144XV

[Michael Walker]

Hi Randy

I used to own the 144XV and yes, it was off frequency with no way to
actually tune the actual transverter.  I actually did add a GPSDO for a
reference that helped.

Next, it drifted all over the place.

So, to answer your question, yes, this is normal.

Mike va3mw


On Wed, Jul 15, 2020 at 10:38 AM Randy Diddel  wrote:

> Hi all,
>
> I have recently installed a K144XV in my K3s.  From the factory, the
> offset value in the lower part of the band is +3.29 however, I tune into
> the Beam Spinner’s net every morning here in the Denver area on 144.200
> however, with the factory recommendation, I have to tune 144.199.75 to hear
> stations clearly.  Tuning the K3s’s VFO to 144.200, I have to change the
> offset to about +3.59 and then everyone sounds good and are ‘on frequency.’
> There are several stations with have 9700’s so I would think they would be
> bang-on.
>
> So, should I set the offset by ear, should I recalibrate, or ???  I do own
> an XG3 so if I knew how to properly calibrate it, I could go that way too.
>
> Any help is appreciated!
>
> 73
>
> K5RHD
>
> /randy
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Re: [Elecraft] kx2 SSB always in TX

[Michael Walker]

Hi

No, nothing else plugged into the radio.

As for a 2nd Mic, not at this time and I am not at home near my workbench
which has lots of bits to try things.  If I have time tonight, I will open
up the Mic and do some more tracing.

I think we have gone as far as we can go at this point given the tools I
have.  I'll do more lab work on it when I get back home next week.

I got the internal mic to work as it should, so I can make do with that for
the time being.

thanks for your help.

73, Mike va3mw


On Tue, Jun 30, 2020 at 4:45 PM Don Wilhelm  wrote:

> Mike,
>
> Solution unknown - either you have a bad mic plug on that MH3, or there
> is a problem with your KX2 mic jack.
> Do you know anyone else who has a KX2 or KX3 that could try your
> microphone?
>
> 73,
> Don W3FPR
>
> On 6/30/2020 3:02 PM, Michael Walker wrote:
> > Ops, missed that.  I used shield ground, not logic ground.
> >
> > However, when I tested Ring 1 to Ring 2, it is open and then shorts
> > when you push the PTT button.  This seems to be working as designed.
> >
> > I did confirm that mic is plugged in all the way and did a close
> > visual look at it to make sure.
> >
> >
>
>
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Re: [Elecraft] kx2 SSB always in TX

[Michael Walker]

Ops, missed that.  I used shield ground, not logic ground.

However, when I tested Ring 1 to Ring 2, it is open and then shorts when
you push the PTT button.  This seems to be working as designed.

I did confirm that mic is plugged in all the way and did a close visual
look at it to make sure.

Mike va3mw


On Tue, Jun 30, 2020 at 2:56 PM Don Wilhelm  wrote:

> Mike,
>
> Did you read the continuity between the 1st and 2nd rings of the MH3 plug?
> The MH3 PTT connects those two rings (and not the shell).
>
> 73,
> Don W3FPR
>
> On 6/30/2020 1:27 PM, Michael Walker wrote:
> > Thanks Don
> >
> > Plugging a Stereo  (3 conductor) does not cause the radio to go into
> > TX with Menu:MIC BTN set to Ptt.
> >
> > Looking like a bad MH3.
> >
> > I did ohm out the MIC between ground and the PTT line and it did show
> > open.  I would be expecting a short.
> >
> > Mike va3mw
> >
>
>
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Re: [Elecraft] kx2 SSB always in TX

[Michael Walker]

Thanks Don

Plugging a Stereo  (3 conductor) does not cause the radio to go into TX
with Menu:MIC BTN set to Ptt.

Looking like a bad MH3.

I did ohm out the MIC between ground and the PTT line and it did show
open.  I would be expecting a short.

Mike va3mw

On Tue, Jun 30, 2020 at 1:18 PM Don Wilhelm  wrote:

> Mike,
>
> Do you have a normal stereo plug available? - or a stereo audio cable
> with nothing on the far end?  If so, plug that in and see if the same
> thing happens - make certain it is in all the way.  If not, the MH3 has
> a problem.
> If it still goes into transmit, the KX2 has a problem.
>
> 73,
> Don W3FPR
>
> On 6/30/2020 12:59 PM, Michael Walker wrote:
> > Hi All
> >
> > I have had a kx2 since they first came out and I have chased this problem
> > since day 1.  But, since I never use it on SSB, I have never worried
> about
> > it.  s/n 337
> >
> > Everything I plug in the MH3 Mic, the radio goes into TX.  I have the
> > latest firmware on it.
> >
> > If Menu:MIC BTN is set to OFF, it does not TX with the PTT button on the
> MIC
> > If Menu:MIC BTN is set to PTT, the radios into TX as soon as you plug the
> > MIC in
> > If Menu:MIC BTN is set to Ptt UP.dn, the radio goes into TX as soon as
> you
> > plug the MIC in
> >
> > VOX is off
> >
>
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Re: [Elecraft] kx2 SSB always in TX

[Michael Walker]

Update on this.

If you are in the Menu, the XMIT does not work.  If out of the Menu, it
works as expected as does Vox.

However, the External Mic problem still exists.

I did Ohm out the MH3 PTT line and it isn't shorted at all, so the Mic is
not the issue.

Mike va3mw


On Tue, Jun 30, 2020 at 12:59 PM Michael Walker 
wrote:

> Hi All
>
> I have had a kx2 since they first came out and I have chased this problem
> since day 1.  But, since I never use it on SSB, I have never worried about
> it.  s/n 337
>
> Everything I plug in the MH3 Mic, the radio goes into TX.  I have the
> latest firmware on it.
>
> If Menu:MIC BTN is set to OFF, it does not TX with the PTT button on the
> MIC
> If Menu:MIC BTN is set to PTT, the radios into TX as soon as you plug the
> MIC in
> If Menu:MIC BTN is set to Ptt UP.dn, the radio goes into TX as soon as you
> plug the MIC in
>
> VOX is off
>
> Next test was to try the internal MIC.
>
> My testing is in LSB on 40M.
>
> Touching XMIT puts the radio into TX, but the only way out of TX is to hit
> the ATU button.  Hitting XMIT again does nothing.  Unfortunately, that
> doesn't work either.
>
> I was headed out on a Canoe trip tomorrow and was hoping to use SSB as a
> mode while I was in the Great White North.
>
> Any thoughts of the next steps to solve this in a few hours?
>
> Mike va3mw
>
>
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[Elecraft] kx2 SSB always in TX

[Michael Walker]

Hi All

I have had a kx2 since they first came out and I have chased this problem
since day 1.  But, since I never use it on SSB, I have never worried about
it.  s/n 337

Everything I plug in the MH3 Mic, the radio goes into TX.  I have the
latest firmware on it.

If Menu:MIC BTN is set to OFF, it does not TX with the PTT button on the MIC
If Menu:MIC BTN is set to PTT, the radios into TX as soon as you plug the
MIC in
If Menu:MIC BTN is set to Ptt UP.dn, the radio goes into TX as soon as you
plug the MIC in

VOX is off

Next test was to try the internal MIC.

My testing is in LSB on 40M.

Touching XMIT puts the radio into TX, but the only way out of TX is to hit
the ATU button.  Hitting XMIT again does nothing.  Unfortunately, that
doesn't work either.

I was headed out on a Canoe trip tomorrow and was hoping to use SSB as a
mode while I was in the Great White North.

Any thoughts of the next steps to solve this in a few hours?

Mike va3mw
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Re: [Elecraft] A couple of KPA1500 remote operating questions

[Michael Walker]

My 2 cents

I ran a KPA500 in a boat house for 6 or 7 years.  It wasn't heated, covered
or filtered.  It saw temperatures from -25C to +35C and humidities from 15%
to 99% and it worked perfectly for those  years.   In fact, it still works
today but I just replaced it with a higher power amp.

This was in Ontario NE of Toronto.  From October to April I never saw it
and controlled it remotely by the PC that was sitting beside it.

It wasn't bothered by the high summer humidity or the cold winter air.

Every few years I blew some dust out of it.

I ran a bunch of CW, SSB and RTTY contests on it, some in January and it
took a while for the PA temp to reach 0C.  I figured that if all the
electronics in my car would work at -35C then the KPA500 would as well.

Short story, I plugged it in, turned it on and used it.  That may not what
you wish to do but it worked perfectly for me.

And, it still works perfectly today.  Just in a different purpose.

mike va3mw



On Wed, Jun 10, 2020 at 7:33 PM Peter Dougherty  wrote:

> Hi all,
> Within the next week or two I am hoping to relocate my KPA-1500 to a
> basement crawlspace, but before calling in the electrician and getting
> ready
> to move it, I have a couple of questions.
>
>
>
> 1.  The area it will be going into is dusty. To the point that when I'm
> in there to check on my cables or retrieve an equipment box that's stored
> down there I have to wear a face mask or I'll be coughing for hours . I
> suspect it's particulate dropping down from the insulation in the ceiling.
> I
> plan to put a shelf about 10 inches over top of the amp but I'm wondering
> if
> this might be a problem. If so, how often should I get down there with a
> compressor to blow the crud out of everything? Or maybe put a piece of fine
> air filter material over the fan inlet?
> 2.  The crawlspace is not heated and probably gets into the 40s or even
> 30s during the winter. Would this be a risk?
> 3.  I'm using the amp with a K3s. At the moment I have a Y-box from the
> accessory port, and a cable from the Y-box to the amp. Since this won't be
> on the same floor as the radio, how can I get this working with the radio?
> If I site the amp immediately below where it is now I could probably run a
> 10' DB15 extension cable down from the Y-box to the amp, but I'm pretty
> sure
> that will violate all kinds of fire regs. Not sure how I can do this.
>
>
>
>
> -
> 73 and Good DX
> Peter, W2IRT
>
>
>
> President, North Jersey DX Association
>
> DXCC Card Checker
> Letter O Manager, ARRL Incoming 2nd District QSL bureau
>
>
>
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Re: [Elecraft] New Astron Switching PS RFI?

[Michael Walker]

I had 2 of them and they both went noisy after 15 years.

I suspect they have a re-capping in their future, but right now, they are
in my electronics junk pile.

Mike va3mw


On Sun, May 17, 2020 at 6:50 PM Josh Fiden  wrote:

> Have there been any design changes to SS-30M?
>
> I have a pair that I’ve been using for 15+ years. Running 6m EME, a
> demanding application, I’ve seen no RFI. Unlike some laptop adapters &
> monitors that have come and gone. If they haven’t changed them, I’ve had
> good success.
>
> 73
> Josh W6XU
>
> Sent from my mobile device
>
> > On May 17, 2020, at 2:24 PM, Tony  wrote:
> >
> > the latest Astron switching power supplies
>
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[Elecraft] Lost K-2

[James Walker]

This is a repeat of a message I sent out several months ago. I'm paying the 
price for having parted with my K-2. I'm trying to buy it back but I can't find 
it. If anybody can help, please consider this message and get in touch with me 
directly. Thanks in advance for any assistance.



K-2 Sale

All this talk about K-2’s makes me homesick for the one I built shortly before 
my retirement (Serial #5529). I spent an entire summer carefully following the 
instructions and created an astonishing radio. Sometime after that, the lure of 
the K-3 took over and I sold my K-2 to finance the purchase of a K-3. While I 
have enjoyed the K-3 and still use it regularly, I'm sorry to have parted with 
my K-2.

If anyone out there knows who has my old K-2 please contact me off-list. I’d 
like to discuss reacquiring the radio. If you tell me you have the radio but 
it’s not for sale, just tell me how it’s doing.

Jimmy WA4ILO

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Re: [Elecraft] Upper limits of KPA500?

[Michael Walker]

Thanks Jack!

I guess part 2 to Jack's comments are...

If it gets too hot, it starts to dial back the output power.

(I would have to read the manual again to see if that is in there).

Mike va3mw


On Mon, May 4, 2020 at 12:12 PM Jack Brindle via Elecraft <
elecraft@mailman.qth.net> wrote:

> From the KPA500 manual, Rev E1, page 41 Specifications:
> Duty Cycle at 500 Watts  10 minutes key down / 5 minutes standby
>
> Sometimes it is very worth while to read the manual. It gives me something
> to do when being stuck at home for so long gets me down.
>
> 73!
> Jack, W6FB
>
> > On May 4, 2020, at 6:39 AM, Dave Cole  wrote:
> >
> > Hi Rick,
> >
> > This brings up a point I have been unsure about for years...  Duty
> Cycle...  What constitutes 100%?  Over how long a time frame?
> >
> > If I run JT65, (one minute on one minute off), and I use a timeframe of
> say 5 minutes, I buy it is 50% duty cycle.
> >
> > But if I use a timeframe of one minute it is 100% Duty Cycle...
> >
> > So when stating duty cycle it is important to spec the timeframe, as you
> did...  Is there an actual timeframe stated someplace as a standard?
> >
> > I do like the way you stated it by the way...  With time to 'catch the
> breath'...
> >
> > 73, and thanks,
> > Dave (NK7Z)
> > https://www.nk7z.net
> > ARRL Volunteer Examiner
> > ARRL Technical Specialist
> > ARRL Asst. Director, NW Division, Technical Resources
> >
> > On 5/3/20 8:53 PM, Rick Bates, NK7I wrote:
> >> I didn't add the obvious, FT8 in that manner is a 50% duty cycle but
> with enough time to 'catch the breath'.
> >> I remember back when it first came out, Wayne suggested to 'run it with
> all the LEDs lit' or something along that line but... it's capable of MUCH
> more than 500 watts and wisely better limited by firmware upgrades (in the
> early days I watched it put out almost 700, at which point I was far more
> cautious).  It's nice to know there is a certain amount of 'overhead'.
> >> Rick NK7I
> >> On 5/3/2020 8:23 PM, Dave Cole wrote:
> >>> Hi Rick,
> >>> That is how mine behaves as well, almost exactly like that... However,
> I will be running SSTV, and that is hard on the amp...  I need to do a bit
> more testing prior to that.
> >>>
> >>> As someone else said upthread, half power is really tough on the amp...
> >>>
> >>> 73, and thanks,
> >>> Dave (NK7Z)
> >>> https://www.nk7z.net
> >>> ARRL Volunteer Examiner
> >>> ARRL Technical Specialist
> >>> ARRL Asst. Director, NW Division, Technical Resources
> >>>
> >>> On 5/3/20 7:52 PM, Rick Bates, NK7I wrote:
>  I spent 15 minutes active on 20M FT8 this afternoon (some lurking).
> 
>  At 530 watts output (on the display and utility) into a 1.13:1
> antenna load (SteppIR) for a ten minute calling period (Mongolia then
> Oman), the temp rose to 66C; a few moments of elevated fan quickly brought
> that down to the low 60's between transmissions.
> 
>  Ambient room temp 77F.  (Both calls succeeded.)
> 
>  Rick NK7I
>  North Idaho
> 
>  On 5/3/2020 7:42 PM, Andy Durbin wrote:
> > "It is interesting to hear how others experience their KPA500s over
> various conditions."
> >
> > I have over a years's worth of KPA500 data recorded but it takes
> some effort to run it through the Excel templates to make pretty plots.
> >
> > My KPA500 temperatures are strongly influenced by ambient
> temperature.  Shack temperature is often over 30 deg C in the summer months
> and it's not at all unusual for my fan to run at level 3 in FT8 QSO.  I
> think I have only reached fan speed 5 twice and that was while running
> temperature tests not while operating.   I terminated those tests at fan
> speed 5 and didn't wish to push it any higher.
> >
> > So many people seem to think reducing the output power will keep the
> temperature down.  It does not.   Half power is about the worst heat
> dissipation condition for the KPA500.
> >
> > 73,
> > Andy, k3wyc
> > __
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> >>> 

Re: [Elecraft] KX2 / KPA500

[Michael Walker]

James

What happens if you unplug the PTT lead from the KPA500?  Does your receive
return?

Mike va3mw


On Tue, Apr 28, 2020 at 3:02 PM James Bennett via Elecraft <
elecraft@mailman.qth.net> wrote:

> I’ve run into an interesting situation that has me puzzled. Probably some
> dumb pilot error, but after an hour or so looking through the manuals and
> thinking about it - I gotta call in the experts.
>
> I’ve had a K3 for ten years and the KPA500/KAT500 for maybe four or five
> years. They work great. I also have a KX2 and thought “why not hook it to
> the KPA500 and give it some punch when I need it?”. Since my antenna
> connects through a coax switch between the K3 and the KX2, the output of
> the KX2 has been flowing through the KPA500/KAT500 since day one, although
> never being amplified. I set the KX2 ATU to bypass and do a “tune” on the
> KAT500 - finds a nice 1:1 match. Keying the KX2 with the amp in standby
> gives me 10w out on the KX2.
>
> Now, with a station tuned in that is say, S8 on the KX2, when I put the
> amp into operate mode, the received signal strength drops about six
> S-units. Going back to standby on the amp restores full receive strength. I
> have pressed the proper band switch on the amp. When I have the amp in
> operate mode and transmit, I get about 190 watts out, with an SWR of 1:1.
>
> By the way - the K3 IS connected to the amp as it normally is, but powered
> off.
>
> So, it seems like the amp is not sensing the RF frequency coming out of
> the KX2 - but why?
>
> Jim / W6JHB
>
>
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Re: [Elecraft] For Sale: Elecraft W-2 Wattmeter/SWR Bridge

[Michael Walker]

Do you have a price?

Which Sensors to you have?

Mike va3mw

On Sat, Apr 25, 2020 at 11:21 AM Charles Tropp 
wrote:

>
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Re: [Elecraft] scratchs on display

[Michael Walker]

You will find that Colgate Tooth Paste has very fine Ash in it (or, it used
to).

I was shown that by an Aircraft Military Mechanic and they used it on
Canopies.

Mike va3mw


On Tue, Apr 14, 2020 at 8:27 PM Don Wilhelm  wrote:

> I think Brasso is too corse - it will polish metal, but the plastic is
> much softer.  Just my opinion.  If the scratches are deep, that may be
> the way to go, but you will need something less abrasive to polish it.
>
> Back in the dark days when I was repairing IBM typewriters, we had some
> plastic polish, but it worked only slightly better than a bit of oil on
> a cloth - rub with a bit of pressure and scratches can disappear - as
> long as the scratches are not deep.  The friction does the job.
>
> Go to your auto parts store and ask about plastic polish.
>
> 73,
> Don W3FPR
>
> On 4/14/2020 8:07 PM, Wayne Suite wrote:
> > I heard that you can use brasso and a soft cloth and lightly apply it by
> > massaging to remove light scratches I would try it on something else 1st
> to
> > be sure.
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Re: [Elecraft] KPA1500 Schematics

[Michael Walker]

Hi Scott

I am sure they will show up in time, however I suspect the K4 and Covid are
higher on the priority list.

73, Mike va3mw


On Mon, Apr 13, 2020 at 12:13 PM K9MA  wrote:

> A while ago, someone suggested that Elecraft would provide the KPA1500
> and other unreleased schematics to customers. That is not the case:
>
> "HI Scott,
> Thanks for contacting Elecraft.
>
> While the released schematics are posted on the Elecraft website, they
> do not yet include the KPA1500."
>
>
> 73,
> Scott K9MA
>
> --
> Scott  K9MA
>
> k...@sdellington.us
>
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Re: [Elecraft] KPA 500

[Michael Walker]

This is going to cause a big sh*t storm :) and about 900 emails before
Wayne shuts it down.

However, having been in RF for a bit less then most of you (only 1974), I
have had connectors fail and not fail in my HF world (60Mhz or less).

No Name ones have worked wonderfully for decades.  Amphenol's have failed
in a year.   Amphenol T's in a phasing harness seem to fail the most (fell
apart).  But, then, who knows who makes them.

What I can say is that there is, based on my personal experience, no 100%
guarantee on any particular one.

Install it.  Visually inspect it.  Make sure it is clean, dry and
waterproof and a year from now, if it is outside, open it up and make sure
it is still dry.

It isn't eve 'you get what you pay for' any more.

Next, we can have another 200 emails on how to solder a PL259.  :)

Mike va3mw




On Fri, Apr 10, 2020 at 4:37 PM Ed Pflueger  wrote:

> Well I was told by an unreliable source that the military had to have their
> Amphenol's manufactured in the USA but were sent to Mexico for packaging.
> Whether that's true or not I cannot confirm.  All I know is the ones I buy
> are stamped in black lettering saying "Amphenol 83-1sp and below that  is
> 74868 PL259 49190" and they can run around 4 bucks apiece depending on when
> and where I get them.
>
> Ed... AB4IQ
>
> -Original Message-
> From: elecraft-boun...@mailman.qth.net
> [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Jim Brown
> Sent: Friday, April 10, 2020 11:27 AM
> To: elecraft@mailman.qth.net
> Subject: Re: [Elecraft] KPA 500
>
> On 4/10/2020 8:45 AM, Irwin Darack wrote:
> > In my experience, coax connectors, barrel connectors, etc. are always
> > fail points when there is a sudden increase in SWR as power is
> > increased. They oxidize over time and sometimes just reconnecting or
> > replacing is the first step before taking the amp apart.
>
> If this is happening, I'd suspect 1) the connectors have gotten wet or
> 2) the are JUNK connectors. If they aren't labeled "Amphenol," they're
> JUNK.
>
> 73, Jim K9YC
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Re: [Elecraft] The Big Three...

[Michael Walker]

I find you mention the big 3, but it is really the big 4.

Mike va3mw


On Sun, Mar 29, 2020 at 9:28 AM Wes  wrote:

> FWIW.  I took a cursory look at the top 10 to see what they were using.
>
> You have to get to 5th place to find a pair of K3s.  Sixth and 7th places
> use
> one K3 and something else for the second radio.
>
> So four out of 20 radios were K3s.
>
> Also of interest 6 out of 10 used WinTest with 4 using N1MM+.
>
> Wes  N7WS
>
>
> On 3/29/2020 2:50 AM, Paul Gacek via Elecraft wrote:
> > If you follow the link you can see what radios the 50+ WRTC 2018
> participant teams used.
> >
> > Lots of K3.
> >
> > http://wrtc2018.de/competition/finalscores.php
> >
> > Paul
> > W6PNG/M0SNA
> > www.nomadic.blog
>
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Re: [Elecraft] question on W2 wattmeter interface application RESOLVED

[Michael Walker]

Hi Bill

Glad you got it sorted out.

This might help next time  https://youtu.be/s4OPX6Isl-U or this one:
https://www.howtogeek.com/howto/windows/bring-misplaced-off-screen-windows-back-to-your-desktop-keyboard-trick/

73

Mike va3mw


On Thu, Mar 19, 2020 at 7:03 PM Bill Steffey NY9H  wrote:

> HAD TO DISCONNECT MAIN MONITOR , forcing all the apps to the 2nd & 3rd
> monitor,,
>
>   got the  W2 APP to come off the ceiling... onto main portion of
> screen/// reconnected and all ok ///
>
>
> sorry for the bANDWIDTH
>
> STAY SAFE
>
> On 3/19/2020 5:50 PM, Bill Steffey NY9H wrote:
> > I had uninstalled the app. , then cleared the registry , reinstalled
> > it   no difference..
> >
> > Intrestingly , and now i need to rethiink the installation process,,,
> > the app does not appear on the taskline , appearing as a background
> > app in task manager.
> >
> > I agree ccleaner is a great tool...
> >
> > bill
> >
> > On 3/19/2020 4:29 PM, Rick Bates, NK7I wrote:
> >
> >> Bill,
> >>
> >> I don't have a W2 so I cannot comment there, but two things stand out
> >> that need mention.
> >>
> >> 1)  Regedit is NOT the place to wipe out a program.  If you (as you
> >> said) don't know much about Windows, it is however the perfect place
> >> to make an unrecoverable error and trash the entire computer.  It is
> >> one of the core elements of the OS.  If you don't understand, don't
> >> attempt here, it's a dangerous place to learn (by mistake).
> >>
> >> 2a) The Windows key (four small window panes) with B /_*may*_//__/
> >> bring that errant program back into viewing ability. (Windows B at
> >> the same time)
> >>
> >> 2b) Use the Task Manager (right click on the taskbar at the bottom)
> >> to 'End Task' if you can't get the upper right X to kill it. Ending a
> >> taskwill lose whatever changes you've made in that application since
> >> starting it but that's often a cause of the issues too.
> >>
> >> If you wish to remove a program, uninstall it. If you wish to clean
> >> or purge the registry of residue (and other things), use 'CCleaner'
> >> (Crap Cleaner) which will do it with intelligence and safety.  It is
> >> free but has the (nasty) habit of wanting to stay running in the
> >> background, so get into the program settings and turn that 'feature'
> >> off.  You'll be amazed and how much 'stuff' gets purged if you use
> >> this app.
> >>
> >> When CCleaning a _registry_, run the cleaning cycle again until it
> >> says nothing found.  Removing one old piece in the registry often
> >> causes others to not be needed as well.  Three times is 'usually'
> >> enough passes.
> >>
> >> CCleaner MAY not get all the folders that installed software leaves
> >> behind, you have to hunt and dispose of them manually and CAREFULLY.
> >> Again, this can be a dangerous place to play if you don't understand.
> >>
> >> (I've used CCleaner for years, I'm not a shill.)
> >>
> >> After you've done this, then you can reinstall the software if you wish.
> >>
> >> Now, back to the topic of the W2 software. Practice safe computing, hi.
> >>
> >> 73,
> >> Rick NK7I
> >>
> >> PS
> >>
> >>
> >> On 3/19/2020 11:56 AM, Bill Steffey NY9H wrote:
> >>> STAY WELL ALL..
> >>>
> >>> got my W2s in circuit...   However my interface ( not the utility)
> >>> software finally finds the W2 but the application stays pinned in
> >>> the let top corner of the main screen. Cannot even find the top bar
> >>> to use the X to kill it.
> >>>
> >>> Tried wiping out the regedit , but it manages to stick up there.
> >>> tried a bunch of stuff.
> >>>
> >>> I know this is my windows ignorance.
> >>>
> >>>
> >>> bill   ( 1 mile from nearest neighbor, both 89 & 93 years old )
> >>>
> >>> __
> >>> Elecraft mailing list
> >>> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> >>> Help: http://mailman.qth.net/mmfaq.htm
> >>> Post: mailto:Elecraft@mailman.qth.net
> >>>
> >>> This list hosted by: http://www.qsl.net
> >>> Please help support this email list: http://www.qsl.net/donate.html
> >>> Message delivered to rick.n...@gmail.com
> >> __
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> >>
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> > __
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> 

Re: [Elecraft] question on W2 wattmeter interface application

[Michael Walker]

Stuck.. you mean the display is stuck at .98 watts?

It might not be the computer software, it could be the sensor.

I would open a support case.

Mike


On Thu, Mar 19, 2020 at 5:51 PM Bill Steffey NY9H  wrote:

> I had uninstalled the app. , then cleared the registry , reinstalled
> it   no difference..
>
> Intrestingly , and now i need to rethiink the installation process,,,
> the app does not appear on the taskline , appearing as a background app
> in task manager.
>
> I agree ccleaner is a great tool...
>
> bill
>
> On 3/19/2020 4:29 PM, Rick Bates, NK7I wrote:
>
> > Bill,
> >
> > I don't have a W2 so I cannot comment there, but two things stand out
> > that need mention.
> >
> > 1)  Regedit is NOT the place to wipe out a program.  If you (as you
> > said) don't know much about Windows, it is however the perfect place
> > to make an unrecoverable error and trash the entire computer.  It is
> > one of the core elements of the OS.  If you don't understand, don't
> > attempt here, it's a dangerous place to learn (by mistake).
> >
> > 2a) The Windows key (four small window panes) with B /_*may*_//__/
> > bring that errant program back into viewing ability. (Windows B at the
> > same time)
> >
> > 2b) Use the Task Manager (right click on the taskbar at the bottom) to
> > 'End Task' if you can't get the upper right X to kill it. Ending a
> > taskwill lose whatever changes you've made in that application since
> > starting it but that's often a cause of the issues too.
> >
> > If you wish to remove a program, uninstall it. If you wish to clean or
> > purge the registry of residue (and other things), use 'CCleaner' (Crap
> > Cleaner) which will do it with intelligence and safety.  It is free
> > but has the (nasty) habit of wanting to stay running in the
> > background, so get into the program settings and turn that 'feature'
> > off.  You'll be amazed and how much 'stuff' gets purged if you use
> > this app.
> >
> > When CCleaning a _registry_, run the cleaning cycle again until it
> > says nothing found.  Removing one old piece in the registry often
> > causes others to not be needed as well.  Three times is 'usually'
> > enough passes.
> >
> > CCleaner MAY not get all the folders that installed software leaves
> > behind, you have to hunt and dispose of them manually and CAREFULLY.
> > Again, this can be a dangerous place to play if you don't understand.
> >
> > (I've used CCleaner for years, I'm not a shill.)
> >
> > After you've done this, then you can reinstall the software if you wish.
> >
> > Now, back to the topic of the W2 software. Practice safe computing, hi.
> >
> > 73,
> > Rick NK7I
> >
> > PS
> >
> >
> > On 3/19/2020 11:56 AM, Bill Steffey NY9H wrote:
> >> STAY WELL ALL..
> >>
> >> got my W2s in circuit...   However my interface ( not the utility)
> >> software finally finds the W2 but the application stays pinned in the
> >> let top corner of the main screen. Cannot even find the top bar to
> >> use the X to kill it.
> >>
> >> Tried wiping out the regedit , but it manages to stick up there.
> >> tried a bunch of stuff.
> >>
> >> I know this is my windows ignorance.
> >>
> >>
> >> bill   ( 1 mile from nearest neighbor, both 89 & 93 years old )
> >>
> >> __
> >> Elecraft mailing list
> >> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> >> Help: http://mailman.qth.net/mmfaq.htm
> >> Post: mailto:Elecraft@mailman.qth.net
> >>
> >> This list hosted by: http://www.qsl.net
> >> Please help support this email list: http://www.qsl.net/donate.html
> >> Message delivered to rick.n...@gmail.com
> > __
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Re: [Elecraft] question on W2 wattmeter interface application

[Michael Walker]

Bill

I have lots of experience with the W2 and interfacing to it.

Can you explain more on what you are trying to accomplish?

What is your interface software?

Mike
va3mw

On Thu, Mar 19, 2020 at 4:30 PM Rick Bates, NK7I 
wrote:

> Bill,
>
> I don't have a W2 so I cannot comment there, but two things stand out
> that need mention.
>
> 1)  Regedit is NOT the place to wipe out a program.  If you (as you
> said) don't know much about Windows, it is however the perfect place to
> make an unrecoverable error and trash the entire computer.  It is one of
> the core elements of the OS.  If you don't understand, don't attempt
> here, it's a dangerous place to learn (by mistake).
>
> 2a) The Windows key (four small window panes) with B /_*may*_//__/ bring
> that errant program back into viewing ability. (Windows B at the same time)
>
> 2b) Use the Task Manager (right click on the taskbar at the bottom) to
> 'End Task' if you can't get the upper right X to kill it. Ending a
> taskwill lose whatever changes you've made in that application since
> starting it but that's often a cause of the issues too.
>
> If you wish to remove a program, uninstall it. If you wish to clean or
> purge the registry of residue (and other things), use 'CCleaner' (Crap
> Cleaner) which will do it with intelligence and safety.  It is free but
> has the (nasty) habit of wanting to stay running in the background, so
> get into the program settings and turn that 'feature' off.  You'll be
> amazed and how much 'stuff' gets purged if you use this app.
>
> When CCleaning a _registry_, run the cleaning cycle again until it says
> nothing found.  Removing one old piece in the registry often causes
> others to not be needed as well.  Three times is 'usually' enough passes.
>
> CCleaner MAY not get all the folders that installed software leaves
> behind, you have to hunt and dispose of them manually and CAREFULLY.
> Again, this can be a dangerous place to play if you don't understand.
>
> (I've used CCleaner for years, I'm not a shill.)
>
> After you've done this, then you can reinstall the software if you wish.
>
> Now, back to the topic of the W2 software. Practice safe computing, hi.
>
> 73,
> Rick NK7I
>
> PS
>
>
> On 3/19/2020 11:56 AM, Bill Steffey NY9H wrote:
> > STAY WELL ALL..
> >
> > got my W2s in circuit...   However my interface ( not the utility)
> > software finally finds the W2 but the application stays pinned in the
> > let top corner of the main screen. Cannot even find the top bar to use
> > the X to kill it.
> >
> > Tried wiping out the regedit , but it manages to stick up there. tried
> > a bunch of stuff.
> >
> > I know this is my windows ignorance.
> >
> >
> > bill   ( 1 mile from nearest neighbor, both 89 & 93 years old )
> >
> > __
> > Elecraft mailing list
> > Home: http://mailman.qth.net/mailman/listinfo/elecraft
> > Help: http://mailman.qth.net/mmfaq.htm
> > Post: mailto:Elecraft@mailman.qth.net
> >
> > This list hosted by: http://www.qsl.net
> > Please help support this email list: http://www.qsl.net/donate.html
> > Message delivered to rick.n...@gmail.com
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Re: [Elecraft] Penny wise, pound foolish

[Michael Walker]

Can I recommend we stay on an Elecraft topic?

many thanks, mike va3mw

On Wed, Mar 11, 2020 at 7:45 AM Lyn Norstad  wrote:

> One tip-off for very slow delivery is when the shipping method is called
> out as "China Post."
>
> 73
> Lyn, W0LEN
>
> -Original Message-
> From: elecraft-boun...@mailman.qth.net [mailto:
> elecraft-boun...@mailman.qth.net] On Behalf Of F5vjc
> Sent: Wednesday, March 11, 2020 5:18 AM
> To: Vic Rosenthal
> Cc: Elecraft Reflector
> Subject: Re: [Elecraft] Penny wise, pound foolish
>
> Exactly, more and more 'stuff ' which eventually,  (even prior to Corona
> Virus) arrives from China is absolute junk!
> Amazon is now rife with this Chinese long delivery rubbish. How to avoid
> it? It is not apparent at the time of ordering!
>
> 73, F5VJC
>
> On Wed, 11 Mar 2020 at 07:11, Vic Rosenthal  wrote:
>
> > I recently ordered some Kester flux pens from a large Chinese company.
> > They take a lng time, but shipping is free and prices are low.
> > But:
> > One of the pens had a date of January 2019, which means that half of its
> > shelf life has expired.
> > The second one had a more recent date, but was leaking and encrusted with
> > flux.
> > The third one had a recent date and was not leaking.
> > I decided that I had hit one out of three, until I looked closely at the
> > label. The misspellings made it obvious that they were all FAKE. Instead
> of
> > Kester flux, they could contain panther piss for all I know.
> > Don’t be dumb like me.
> >
> > Victor 4X6GP
> > __
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Re: [Elecraft] Extra Protection For KPA500?

[Michael Walker]

Hi Tony

You do realize that the KPA500 does have over power protection as well?

Mike va3mw

On Thu, Mar 5, 2020 at 6:17 PM Don Wilhelm  wrote:

> Rick,
>
> When you move into the new shack location, consider getting the new AUX
> cables from Elecraft.  If your original ones have a large (about 1/4
> inch diameter) cable, the new ones are smaller and more flexible.
>
> 73,
> Don W3FPR
>
> On 3/5/2020 5:57 PM, Rick Bates, NK7I wrote:
> > Don et al,
> >
> > On occasion the signal that the amp goes into Operate mode is not passed
> > along (or received, I don't know which), which means that the K3 will
> > operate at higher than required drive level, for a moment only because
> > the KPA500 will fault VERY quickly protecting everything.
> >
> > However, I am unable to come up with a viable pair of suspenders, so I
> > simply try to be more aware when the amp goes hot.
> >
> > The reverse can be true too; the K3 thinks the amp is still in operate
> > (but it isn't) and transmits at lower than expected output.
> >
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Re: [Elecraft] Chinese Production Re: K4 news?

[Michael Walker]

Yes, this will have a direct result in all production.

>From Elecraft's perspective, it could be a simple knob that would result in
a radio not being shipped.  It only takes 1 part since you can't ship a
radio unless it is 100.000% complete.

Mike va3mw


On Thu, Mar 5, 2020 at 8:33 AM N4ZR  wrote:

> Have you seen the incredible images of China before and after
> coronavirus, taken by a satellite specifically visualizing the amount of
> NO2 in the atmosphere
> <
> https://www.theverge.com/2020/3/2/21161324/coronavirus-quarantine-china-maps-air-pollution>.
>
> There *must* be a tremendous impact on supply chains around the world.
>
> 73, Pete N4ZR
> Check out the Reverse Beacon Network
> at , now
> spotting RTTY activity worldwide.
> For spots, please use your favorite
> "retail" DX cluster.
>
> On 3/5/2020 8:12 AM, Irwin Darack wrote:
> > I am curious to know if the reduction in manufacturing in China, do to
> the
> > COVID-19 virus, is having an affect on the ability of Elecraft to obtain
> > parts? The area of China that is the epicenter is a major manufacturer of
> > electronic components.
> >
> > Irwin KD3TB
> >
> >
> >
> > On Wed, Mar 4, 2020 at 6:11 PM Rick Miller - N1RM  wrote:
> >
> >> Very clever post.
> >>
> >> When they announced the last delay, there was a statement that there
> would
> >> be more frequent updates.  Perhaps, if nothing else, this thread will
> >> provide motivation for another update.  Since many of us are
> "investors" in
> >> the K4, it seems reasonable to ask.
> >>
> >> 73 and hope your twitter remains under control!
> >> Rick
> >> N1RM
> >>
> >>
> >>
> >> --
> >> Sent from: http://elecraft.365791.n2.nabble.com/
> >> __
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> >>
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> >>
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Re: [Elecraft] Excel Test

[James Walker]

I know all about the alternatives to Microsoft word. I actually have Microsoft 
word. The point is that PDF is the most accessible format that we all have in 
common. Why use some more proprietary or exotic format to transmit something 
that does not need the features of these programs you suggest. If I only need 
them to read the message, I'd rather use what I have and avoid the complexities 
of downloading new software. I think it is correct to say that any word 
processing software can create a PDF document for simple text. Why must a user 
be forced download a new program when a little bit of an attention to detail 
can create a document everyone can read?

Jimmy Walker, WA4ILO, Macon, GA


> On Feb 26, 2020, at 11:56 AM, Raymond Sills via Elecraft 
>  wrote:
> 
> In addition to Libre Office, there still is Open Office (now supported by The 
> Apache Software Foundation).It appears that at some point the original Open 
> Office morphed into Libre Office... and AFAIK, all the generated files from 
> each application are compatible with each other, and will permit you to 
> export a new file in Word (or other MS App) format.   Open Office is free to 
> download and use.
> The latest version rescued me when I had to update my Mac's OS and I wanted 
> to be able to open older files.  The bane of updating an OS is the risk that 
> some older app that you still need or use will "break" under the new OS.   At 
> that point, you have to hope that the original developer of that now broker 
> app will have updated it to run on the new OS.
> I had that situation with EchoMac... a compatible version of EchoLink.
> 73 de RayK2ULRKX3 #211
> 
> 
> -Original Message-
> From: Don Wilhelm 
> To: James Walker ; Walter Underwood 
> 
> Cc: elecraft reflector 
> Sent: Wed, Feb 26, 2020 11:44 am
> Subject: Re: [Elecraft] Excel Test
> 
> If you do not have Microsoft Word, then you should download and install 
> LibreOffice.  It is a full Office suite that is quite similar to 
> Microsoft Office.  And it is free to use.  It will read any file 
> produced by MS Office, and it also exports to .pdf format.
> 
> 73,
> Don W3FPR
> 
> 
> 
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Re: [Elecraft] Excel Test

[James Walker]

I would say it differently. I would say PDF is where text goes to be read. I 
decline to download any text file that’s not PDF. Too risky. It's amazing to me 
how many people will send out a file in a proprietary format like Microsoft 
Word and expect all the recipients to be able to read it. 

Jimmy Walker, WA4ILO, Macon, GA


> On Feb 26, 2020, at 11:04 AM, Walter Underwood  wrote:
> 
> I got it from somebody else. Before I heard this, I said that PDF is where 
> text goes to die.
> 
> wunder
> K6WRU
> Walter Underwood
> CM87wj
> http://observer.wunderwood.org/ (my blog)
> 
>> On Feb 26, 2020, at 6:46 AM, Chris R. NW6V  wrote:
>> 
>> Walter,
>> 
>> Bravo!. :-) I'm going to steal this line...  :-)
>> 
>> 73 Chris NW6V
>> 
>> On Tue, 25 Feb 2020 08:09:02 -0800  AM  wrote:
>> 
>>> 
>>> "Turning a PDF back into structured text is like turning hamburger back
>>> into a cow."
>>> 
>>> 
>>> 
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Re: [Elecraft] S6 noise floor?

[Michael Walker]

Hi Jerry

Maybe.  You will have to do every piece of copper cable since everyone one
of these have the ability to be an antenna.  Any switching power supply in
your shack would also require choking.

I just spent an entire day on Saturday looking for noise up into VHF.  It
was the wall wart for an outside web cam.

I've invested a lot in my hobby.  A few hundred dollars on chokes have made
it more enjoyable.

Mike va3mw


On Wed, Feb 26, 2020 at 8:17 AM  wrote:

> Aside from installing ferrite on all cables (not sure why this isn't
> integrated somehow if it's that large of an issue) would having the shack
> walls lined with a grounded screen help reduce/eliminate radio noise?
>
> Is the cost/effort worth it?
>
> My wife and I are planning to build a house in a few years and I'm planning
> out my station.
>
> Based on the noise issues I have and have researched it sounds like I need
> a
> shielded room where all cables in/out are wrapped in ferrite and power is
> routed through a 1:1 transformer OR true sine wave UPS.
>
> Then I still have to deal with computer equipment noise and anything else
> to
> get a clean signal where the ground noise is low.
>
>
>
> Jerry Moore
>
> Cell: 803-431-1870
>
>
>
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Re: [Elecraft] Support backed up?

[Michael Walker]

Jerry

Elecraft is a small company, like most amateur companies.  :)

It may take a day or so, but they will get back to you.  There are likely
other customers in front of you.

Mike va3mw

On Fri, Feb 21, 2020 at 11:47 AM  wrote:

> I called to order my vga card and some other parts which I needed tech
> support answer, I sent an email yesterday and haven't heard back.
>
> What's the expected response time?
>
>
>
>
>
> Jerry Moore
>
> Cell: 803-431-1870
>
>
>
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Re: [Elecraft] RFI issues

[Michael Walker]

HI Andreas

Sorry to hear about your noise.

I doubt your noise is related to digital TV as that is a long way away in
the frequency world.  It is pretty common to assume that it is not on your
own property.  I saw one guy who said the same thing and then found out a
year later it was his new dryer that was noisy even when they were not
using it.

I would not be surprised that most of your HF noise is within your own
property unless you did some significant research by  holding an AM radio
near each and every power cube or charger for phones, etc.  There are not
too many that are quiet.

I use my KX2 to find most of my HF noise issues and I must have tossed out
15 bad chargers.  The ones I could not just toss away, I had to add Mix 31
chokes to.

When you moved into your new house did you replace all the light bulbs with
LED bulbs?  They can be noisy.

If you haven't taken the time to do an indepth study on your own house, you
should.  You might be surprised.  I would plan an all day exercise when
everyone is out of the house.

Mike va3mw


On Tue, Feb 18, 2020 at 2:25 PM Dave Cole  wrote:

> Hi,
>
> I might suspect something else...
>
> Have you done a power off test of your home yet?
>
> 73, and thanks,
> Dave (NK7Z)
> https://www.nk7z.net
> ARRL Volunteer Examiner
> ARRL Technical Specialist
> ARRL Asst. Director, NW Division, Technical Resources
>
> On 2/18/20 8:29 AM, Andreas Wachter via Elecraft wrote:
> > I live about 1.6 miles from some tall antenna towers broadcasting
> digital TV (KBCB) at 208 kW ERP on channel 19 (500 - 506 MHz) and on FM
> (KWPZ-FM) at 63 kW ERP on 106.5MHz - according to FCC info on KBCB and
> KWPZ-FM. Ever since I moved to this QTH a few months ago, I am unable to
> use my K3: solid S9+ noise on all bands using a makeshift dipole strung up
> on some trees outside my house. I’ve tried to locate the source of the RFI
> within my home but so far have been unable to locate any RFI emanating from
> within my home. Could it be that the TV/FM stations antenna towers, which
> are within direct line of sight from my house, might be responsible for the
> RFI?
> >
> > 73, Andreas
> >
> > K6AKW
> > __
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Re: [Elecraft] QRO - KPA500 Failure

[Michael Walker]

Amps making noises like that usually mean you have to take the covers off.

They are easy enough to repair if you are so inclined.  If not, then you
will need to contact Elecraft support and odds are you will have to send it
home for a Spa day.

Mike va3mw


On Thu, Feb 6, 2020 at 3:35 PM Jim Brown  wrote:

> On 2/6/2020 12:15 PM, Jim Mullen wrote:
> > Any pointers of where to start looking?
>
> 1) What SWR does the rig see with the amp off?
> 2) Make notes of any error messages given by the KPA500 display.
> 3) Call Elecraft Support
>
> 73, Jim K9YC
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Re: [Elecraft] K4 delivery is now in May

[Michael Walker]

All in good time

The world won’t end and no one will die if it comes out later. 

Mike va3mw 

> On Jan 15, 2020, at 8:02 PM, mark roz via Elecraft  
> wrote:
> 
> Wow. K4- perhaps first delivery in May now.
> Very disappointing.
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Re: [Elecraft] K3 - Power cable voltage drop

[Michael Walker]

For measuring voltage drop.. I would measure the voltage drop from the Plus
lead of the Power supply to the plus lead on the back of the radio while in
full load TX (FM or RTTY).

It should be less than 0.1 or 0.2 of a volt.

Then, do the same on the Negative Lead.  You should see the same answer
(assuming Negative DC doesn't find an alternative path).

Those numbers should add up to the same voltage drop total.

As a reminder.  It only takes 1 ohm of loss in the cable/fuses to
significantly impact your full power out.

Mike va3mw


On Sat, Dec 28, 2019 at 11:00 AM Don Wilhelm  wrote:

> Better precision than a battery can be found by using a precision
> voltage regulator.  Take a look at the Precision Voltage Source on my
> website www.w3fpr.com.
>
> 73,
> Don W3FPR
>
> On 12/27/2019 5:53 PM, Bill Frantz wrote:
> > A simple reality test for a volt meter is to measure a fresh battery.
> > Zinc/carbon or Alkaline should show about 1.56 volts. (I learned this
> > test from the bias setting instructions for a Dynakit Stereo 70
> > amplifier. They built the amp so the test point read 1.56 volts when the
> > bias is correctly set and suggested calibrating your meter with a
> > battery. In that era, the zinc/carbon battery was what ran almost all of
> > the flashlights (torches for for English speakers) in the world.
> >
> > 73 Bill AE6JV
> >
> > On 12/23/19 at 11:30 PM, rmcg...@blomand.net (Bob McGraw K4TAX) wrote:
> >
> >> A good, known accurate DVM is an asset to any station.  Use it to
> >> determine if the others are accurate.  There are several good brands
> >> available.   A DVM that is not accurate is worse than no DVM at all.
> >> My choice of many years ago is my Fluke 77.   After I tapped it with
> >> too much voltage, I sent it to Fluke for repair and calibration.  I am
> >> confident when I make a measurement it is accurate without question.
> > -
> > Bill Frantz| The first thing you need when  | Periwinkle
> > (408)356-8506  | using a perimeter defense is a | 16345 Englewood Ave
> > www.pwpconsult.com | perimeter. | Los Gatos, CA
> 95032
> >
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Re: [Elecraft] Operating from a retirement home

[Michael Walker]

Since I have done a lot of remote operating (just to get my HF station away
from the noise).  And, it is my station, my station only and I built it
from scratch.

I have advised those of you getting on in years that the technology now
exists go get 3 or 4 of you on the same project, while you can and build
your own remote.  You just need a quiet site with internet.

Since you are retired by this point, you might need a hobby for your
hobby.  :)

Mike va3mw


On Tue, Dec 17, 2019 at 5:31 PM David Gilbert 
wrote:

>
> That's a pretty simplistic attitude, and probably a hypocritical one as
> well.  Have you never rented a camper, or a cabin, or a car, or a
> specialized tool?  I doubt it you own everything you've ever used. More
> to the point, have you never guest operated at somebody else's station,
> or do you frown upon those that do?
>
> Building a station is fine for those with the resources to do so, but
> I'd posit that having the skills to operate one is at least as relevant
> to the spirit of ham radio.
>
> Dave   AB7E
>
>
>
> On 12/17/2019 2:15 PM, Bob McGraw K4TAX wrote:
> > I am in no way in favor of renting, leasing or using a remote station,
> > for any purpose, other than use by and that of the primary owner.
> >
> > As we say in the country, "if one can't run with the big dogs, then
> > best stay under the porch".Renting a station of that magnitude
> > does not make one a big dog.
> >
> > 73
> >
> > Bob, K4TAX
>
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Re: [Elecraft] KPA1500 RFI on 10 Meters

[Michael Walker]

Hi Jim

How many slides are in that deck?

Mike


On Tue, Dec 17, 2019 at 3:08 PM Jim Brown  wrote:

> On 12/17/2019 11:44 AM, Eric Swartz - WA6HHQ, Elecraft wrote:
> > We have seen this in rare cases on a few 1500s. It appears to be caused
> > by the ground connection between the rear RF INPUT SO-239 flange and the
> > chassis.
>
> Or, if the station is not properly bonded. Or coax with a poor shield
> connection to a connector.
>
> 73, Jim K9YC
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Re: [Elecraft] Operating from a retirement home

[Michael Walker]

She is correct on luncheon meats.

Big Mac, Any Egg and Meat sandwich and most prepared foods have about 900mg
of Sodium and I bet your dailing limit is about 1500mg (for Canadians, that
means all Tim's breakfast sandwiches).  Don't forget hotdogs and sausages
are off the list too.  They use a lot of Brine.  As my wife and I did the
Sodium research the Big Mac was about the 'best' of the worst.  No more
pizza or just about any Mall food.

Eggs are great!

Your own safe way out is to prepare your own with plain meets like Turkey,
etc.  Welcome to getting old-er.  :)

Mike


On Tue, Dec 17, 2019 at 9:21 AM KE8G  wrote:

> Yes, my wife is also a retired nurse and every time I go to the doctor's
> office and he tells me I need to do "something", she is shacking her head
> in the affirmative and I know I will not be a happy camper!  Example...
> cardiologist says no luncheon meats, I LOVE luncheon meats, but haven't had
> any for the last 10 years!!
>
> 73 de Jim - KE8G
>
> On Tue, Dec 17, 2019 at 5:51 AM David Wilcox via Elecraft <
> elecraft@mailman.qth.net> wrote:
>
> > Ha!  That's a good one.  And so true.
> >
> > David J. Wilcox K8WPE’s iPad
> >
> > > On Dec 17, 2019, at 5:27 AM, WW3S  wrote:
> > >
> > > I feel your pain !
> > > (Speaking from experience)
> > >
> > > The good thing about my wife is she is a nurse as well.
> > > The bad thing about my wife is.she is a nurse !
> > >
> > > Sent from my iPad
> > >
> > >> On Dec 17, 2019, at 5:25 AM, David Wilcox via Elecraft <
> > elecraft@mailman.qth.net> wrote:
> > >>
> > >> Whenever one of our radio club seniors has to enter a nursing home to
> > recover from some issue or permanently moves into an  assisted living
> home
> > we try to set up a ham station in that hams room.  The homes in our area
> > are very understanding.  I already have chosen the place I want to go to
> if
> > and when the time comes. They have a woods with tall trees behind the
> > facility.  My wife and I built our retirement home barrier free and she
> is
> > a younger nurse so I hope to be able to play radio at home.  But she can
> be
> > a tyrant making me do all the things a doctor or rehab specialist might
> > recommend.  I guess there are trade offs in every situation. Hi!
> > >>
> > >> David J. Wilcox K8WPE’s iPad
> > >>
> >  On Dec 17, 2019, at 3:47 AM, Steven G. Steltzer 
> > wrote:
> > >>>
> > >>> CW ops have another option for retirement homes or severely
> > restricted HOA's . Search iCW on the web.
> > >>>
> > >>> 73,
> > >>> Steve, WF3T
> > >>> __
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> > >>
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Re: [Elecraft] T1

[Michael Walker]

I have one as well that I think I can part with.

Mike va3mw


On Fri, Dec 13, 2019 at 9:48 AM Ian Kahn  wrote:

> Terry,
>
> I have one for sale. Let's connect off-line.
>
> Ian, NV4C
>
> On Fri, Dec 13, 2019, 9:39 AM Terry Basom  wrote:
>
> > Looking for a T1 tuner..
> >
> > Thanks
> > Terry
> > VE3IQL
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Re: [Elecraft] The Phone Call

[Michael Walker]

Keep in mind, what you experienced does not scale in business. 

Image if 50% of Elecraft’s customers wanted to call today and talk to Wayne or 
Eric.  That would not allow him to be working on the K4 or other new special 
stuff.  

This is why they all have staff.  :)

Mike va3mw

> On Dec 11, 2019, at 2:18 PM, Barry  wrote:
> 
> Mike,
> 
>Actually, that really hasn't been my experience except Elecraft and Tentec 
> which is no longer in business. I remember a call to Elecraft around 2100L 
> EST when I ran into trouble when building my K2. The tech answered the phone 
> and we spent about an hour trouble shooting a test that wasn't right. It 
> turned out to be a bad capacitor, BUT the tech was the designer, Wayne. My 
> experience with Elecraft has been over the top, but dealing directly with the 
> developer has been something else.
> 
> 73,
> Barry
> K3NDM
> 
> ------ Original Message --
> From: "Michael Walker" 
> To: "Fred Soop" 
> Cc: "Elecraft@mailman.qth.net" 
> Sent: 12/11/2019 1:50:55 PM
> Subject: Re: [Elecraft] The Phone Call
> 
>> Fortunately, there are a lot of Ham Radio companies that you can
>> actually reach out to to the developers and who are active hams.
>> 
>> It isn't limited to just this one.
>> 
>> Mike va3mw
>> 
>> 
>>> On Wed, Dec 11, 2019 at 1:47 PM Fred Soop  wrote:
>>> 
>>> 
>>> I didn't actually make a call but after meeting Elecraft at Hamvention, my
>>> reaction was similar. Did not actually meet the top brass but one of their
>>> salespeople was able to tell me more about sorting out my antenna situation
>>> than many others combined.
>>> 
>>> 73
>>> Fred AC9RQ
>>> 
>>> >>>
>>> I just read the Elecraft December Newsletter, so I made a quick phone
>>> call. It's still morning over there.
>>> 
>>> Big Radio Company: How may I direct your call?
>>> Me: Yes, hello, I'd like to speak to your CTO.
>>> BRC: Oh, I'm sorry sir, but I can't do that.
>>> Me: How about a co-founder?
>>> BRC: No...
>>> Me: Why not? I'm about to buy a new radio, and it's down to Elecraft and
>>> you guys, and Elecraft says I can go hang out with one of the big wigs and
>>> play radio, so I'm calling you to see if you'll match that offer. You know,
>>> maybe I can come over and hang out in your ham station -- you do have a
>>> station, don't you?-- and your big wig can come out and have a soda with
>>> me, and we can trade stories and shoot the breeze and then call CQ on 20.
>>> Yeah?
>>> BRC: No, sir, I'm sorry.  To tell you the truth... we
>>> don't even *know* who the CTO is.
>>> Me:? Excuse me?
>>> BRC: We see important-looking people pass by all the time, but we don't
>>> actually know which one is the CTO. We're a big conglomerate now.
>>> Me: Well, maybe you can find someone under him, like the VP of
>>> engineering. I'd like to meet him. Or her.
>>> BRC: Oh, no. That's not possible. . You see, he
>>> doesn't actually design any of our products. He has a team working under
>>> him, and they do all the work.  He does select the knobs that go
>>> on the radios, though.
>>> Me: The chief knob-picker, eh? Gee, I was hoping for someone who knows how
>>> to match impedance, or optimize a sigmoid response. Got any amplifier
>>> experts?
>>> BRC: Not really.
>>> Me: AGC gurus?
>>> BRC: Not that I know of.
>>> Me: Anybody who solders?
>>> BRC: Oh, yes! You could have lunch with Maria. She's our absolute best
>>> solderer.
>>> Me: Can she dig a signal out of the noise? Does she like hiking?
>>> BRC: 
>>> Me: Never mind. You know, I'm glad I called you. I think my mind is made
>>> up. Good-bye and thank you!
>>> BRC: Good day, sir, and thank you for calling.
>>> 
>>> Al? W6LX
>>> <<<
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Re: [Elecraft] The Phone Call

[Michael Walker]

Fortunately, there are a lot of Ham Radio companies that you can
actually reach out to to the developers and who are active hams.

It isn't limited to just this one.

Mike va3mw


On Wed, Dec 11, 2019 at 1:47 PM Fred Soop  wrote:

>
> I didn't actually make a call but after meeting Elecraft at Hamvention, my
> reaction was similar. Did not actually meet the top brass but one of their
> salespeople was able to tell me more about sorting out my antenna situation
> than many others combined.
>
> 73
> Fred AC9RQ
>
> >>>
> I just read the Elecraft December Newsletter, so I made a quick phone
> call. It's still morning over there.
>
> Big Radio Company: How may I direct your call?
> Me: Yes, hello, I'd like to speak to your CTO.
> BRC: Oh, I'm sorry sir, but I can't do that.
> Me: How about a co-founder?
> BRC: No...
> Me: Why not? I'm about to buy a new radio, and it's down to Elecraft and
> you guys, and Elecraft says I can go hang out with one of the big wigs and
> play radio, so I'm calling you to see if you'll match that offer. You know,
> maybe I can come over and hang out in your ham station -- you do have a
> station, don't you?-- and your big wig can come out and have a soda with
> me, and we can trade stories and shoot the breeze and then call CQ on 20.
> Yeah?
> BRC: No, sir, I'm sorry.  To tell you the truth... we
> don't even *know* who the CTO is.
> Me:? Excuse me?
> BRC: We see important-looking people pass by all the time, but we don't
> actually know which one is the CTO. We're a big conglomerate now.
> Me: Well, maybe you can find someone under him, like the VP of
> engineering. I'd like to meet him. Or her.
> BRC: Oh, no. That's not possible. . You see, he
> doesn't actually design any of our products. He has a team working under
> him, and they do all the work.  He does select the knobs that go
> on the radios, though.
> Me: The chief knob-picker, eh? Gee, I was hoping for someone who knows how
> to match impedance, or optimize a sigmoid response. Got any amplifier
> experts?
> BRC: Not really.
> Me: AGC gurus?
> BRC: Not that I know of.
> Me: Anybody who solders?
> BRC: Oh, yes! You could have lunch with Maria. She's our absolute best
> solderer.
> Me: Can she dig a signal out of the noise? Does she like hiking?
> BRC: 
> Me: Never mind. You know, I'm glad I called you. I think my mind is made
> up. Good-bye and thank you!
> BRC: Good day, sir, and thank you for calling.
>
> Al? W6LX
> <<<
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Re: [Elecraft] KPA1500 Help!!

[Michael Walker]

Hi Ted

It is very difficult to design an amp that does what you ask.  Yes, my ACOM 
wasn’t bad, but it still have some variance if I went from 160M to 6M.

Every amp I have owned has required different drive on each band.  I have 
worked that into my procedure that every time I change bands I confirm drive 
levels to be sure.  

There are some solutions that works well with other radios if you want this 
fully automated.  The Flex world of radios has some excellent auto drive tools 
(DDUTIL).  Sorry, I don’t know if there is something that would work for your 
radio.l

Sorry it isn’t what you expected.

What caused you to change from your ACOM 2000?  It sounds like it was a perfect 
match for you.

Mike va3mw

> On Dec 11, 2019, at 10:06 AM, Salvatore Ted K2QMF  wrote:
> 
> Hello All,
> Received my new KPA1500 a few days ago!
> I love the Amp but I have an issue maybe someone can help with!!
> The KPA1500 does NOT play well with other rigs!!
> I am driving it with a Yaesu FTdx5000!  There is a very big difference in 
> drive levels for different Bands!! For instance on 160 the drive is 20 watts. 
>  On 20 the drive is 45 Watts!! If I change bands I could overdrive the amp to 
> a fault!!
> I did not have this problem with my Acom 2000!
> Any help would be much appreciated!
> Maybe some way to retune the amps input circuit??
> Many Thanks in advance...
> 73,
> Ted  K2QMF
> 
> Urologist Tells Men To "Fix" Their ED With This New Trick!
> Med Journal
> http://thirdpartyoffers.juno.com/TGL3141/5df1056fc420a56e4f72st02vuc
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Re: [Elecraft] AX1 (and AXE1) Report

[Michael Walker]

Pierre

That is impressive!  Especially from the Great White North!

Mike va3mw


On Mon, Dec 9, 2019 at 9:46 PM VE2PID  wrote:

> Hi folks ... Today I made my 100th QSO using the AXE1. So far (40 and 20
> meters combined) and with 5 or 10 Watts (KX2-KX3-AXE1-AX1), the average
> distance of contacts is 1581 km with a maximum of 5635 km. Very nice
> antenna for portable operations. ...
> 73, de Pierre VE2PID
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Re: [Elecraft] KAT500 remote

[Michael Walker]

Hi Hans

We need more information.

If you are using the remote client, there are a few things to set up.

First, the local software needs to be running on the PC that the AMP is
connected to

Have a look at the Port Number that the KPA500 software is listening on.
The default should work ok.

Now, run the same software on the remote PC and when you start it up, you
need specify the IP address and the port of the remote PC.  If you have a
VPN setup, that is great.  If not, then you need to do a port forward
through your router and you need to know the IP address of your Router.

This is pretty high level and I do not know your network expertise.If
you understand all I wrote, then you will know what to do.

If not, then you will need a bunch more details from  us.

It does work as I have used it for years like that.

Mike va3mw


On Sat, Nov 9, 2019 at 3:57 AM Hans Johansson  wrote:

> I am trying to use KAT500 remote progrsm to control my KAT500 but
> I can't get any connection. If I use KAT500 utility it works quite OK and I
> get contact. Anyone who has an advice what I do wrong ?
>
> Hans  SM6BGA.
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Re: [Elecraft] KPA1500 Display Color

[Michael Walker]

Wow

Dave has really spiffed up his Node-Red control panel.  :)  I need to do
some work on mine.

I have done the same thing to control my KPA500.

As there is no 'off the shelf' remote control solution, using a PI, some
bits and Node-Red is the next best thing.  You can do it even if you don't
own a soldering iron.

Mike va3mw


On Sun, Nov 10, 2019 at 6:35 PM Dave  wrote:

> I use a software called Node Red running on a Raspberry Pi talking to the
> KPA1500 on the network. This allows me to control and monitor the amp from
> a web browser. Customizable colors and layout.
>
> This will also come in handy for those who run their radios remote.
> I find I use it more than looking at the amp or using the remote app.
>
> I have a picture of the Node Red layout on my QRZ page.
> https://www.qrz.com/db/WO2X
>
> Dave wo2x
>
> Sent from my iPad
>
> > On Nov 10, 2019, at 6:18 PM, Chuck Stover via Elecraft <
> elecraft@mailman.qth.net> wrote:
> >
> >  Buy a K4, problem solved.
> > Chuck K4QS
> >
> >>On Sunday, November 10, 2019, 5:16:51 PM EST, Grant Youngman <
> ghyoung...@gmail.com> wrote:
> >>
> >>
> >> Is there a way to change the display color to match the K3?  Or, am I
> stuck
> >> with light blue?
> >
> > Stuck …
> >
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Re: [Elecraft] Elecraft Site Down in Europe

[Michael Walker]

It is fine in Canada, but I doubt that Elecraft can solve this since it is
likely an European hosting issue and it is done by a 3rd party.

Mike va3mw

On Tue, Oct 29, 2019 at 8:57 AM Graziano Roccon (IW2NOY) <
grazi...@roccon.com> wrote:

> Hello,
>
> Eleracft site : https://elecraft.com is down, almost in Europe.
>
> Do you know it ?
>
> Besta regards, Graziano IW2NOY / W2NOY
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Re: [Elecraft] KPA500...standby vs. operate

[Michael Walker]

I had a KPA500 at my remote station and I know that I have managed to leave
it on in Operate for weeks at a time by accident.

I don't think you need to worry about it.

Besides, it is a great watt meter even if you are in standby!

Mike va3mw


On Sun, Oct 27, 2019 at 8:14 PM T.H. Bauer  wrote:

> Victor makes a good point. Although I no longer have pets, if I leave the
> station (K3 + KPA500/KAT500) powered ON,
> I place the KPA500 in Stby and the K3 into Test mode. That (hopefully)
> ensures no errant transmissions while I  am
> away from the shack.
> I have to admit that I have sometimes returned and forgotten to put the K3
> back into Normal mode. Then I wonder
> why there are no responses to my calls (!!). Iguess at 73 I'm entitled to a
> few of those mistakes.
> 73
> ---
> Ted   WA3AER
> CWops #1879
>
> Date: Sun, 27 Oct 2019 19:53:54 +0200
> From: Victor Rosenthal 4X6GP 
> To: elecraft@mailman.qth.net
> Subject: Re: [Elecraft] KPA500...standby vs. operate
> Message-ID: <594e9185-54d9-f661-7fa9-0aa5fc262...@gmail.com>
> Content-Type: text/plain; charset=utf-8; format=flowed
>
> If you have a pet larger than a goldfish, you should probably put it
> into standby. Unless your pet is licensed to transmit.
>
> 73,
> Victor, 4X6GP
> Rehovot, Israel
> Formerly K2VCO
> CWops no. 5
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Re: [Elecraft] KPA1500 RFI on 12m

[Michael Walker]

Hi Eric

I think you are asking a lot for a tuner to run at any power into a
non-resonant antenna and break a pile up.  :)

You would actually have better success with a 12M dipole then trying to get
a non-resonant beam to direct your signal.

If I was in your shoes, I would quickly toss up a 12M dipole with some
string and bubble gum as you would have a much higher radiated signal.

Mike va3mw


On Thu, Oct 24, 2019 at 4:08 PM eric norris via Elecraft <
elecraft@mailman.qth.net> wrote:

> My Force 12 C3 antenna is not resonant on 12m.  Using the K3 barefoot, the
> internal atu tunes the antenna fine.  Bypassing the K3 atu, but still
> running barefoot into the KPA1500 atu, the KPA atu loses it's mind and goes
> in and out of TUNE mode uncommanded.  Even though the KPA has found a
> match, trying to transmit through it at the 100w level is impossible
> because of the constant retuning.
> I have put my small collection of mix-31 ferrites on the antenna output,
> input, and KPA control line at the KPA, each at a time, with no success.
> Any ideas?  I would like to be able to run the KPA at least a few hundred
> watts to have the proverbial snowball's chance to break the VP6R pileup on
> 12m CW.
> Any useful comments appreciated.
> 73 Eric WD6DBM
>
> Sent from Yahoo Mail on Android
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Re: [Elecraft] Transmitting audio file

[Michael Walker]

It is also built into all Flex radios. 

Mike

> On Oct 18, 2019, at 10:16 PM, Nr4c  wrote:
> 
> Easy. If you have a KX2 or KX3 or a K3(s) with the DVR option. 
> 
> Follow instructions in manual to record the audio and then play it back. 
> 
> Sent from my iPhone
> ...nr4c. bill
> 
> 
>> On Oct 18, 2019, at 4:52 PM, Todd Ruby  wrote:
>> 
>> Hello everyone 
>> The other day a DX station recorded my transmission and asked me if I’d like 
>> to hear how I sound. I said,”sure”, and then he replayed it on the air for 
>> me to hear. 
>> 
>> My question is how do I do this? My soundcard feeds the audio into my 
>> MacBook Pro, and the Pizeo app records it. 
>> 
>> Question how do I key the rig to transmit the recording?
>> 
>> tnx in advance 
>> 73
>> todd
>> WB2ZAB 
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Re: [Elecraft] Creaking KPA-500

[Michael Walker]

The creaking is due to the Heatsink expanding and contracting and the
screws trying to hold them in place.

It is normal and if you loosen screws, you may hear the noise go away.  If
you tighten them, you might break the screws.

I'm not sure which way it will go, but it is normal.

Mike va3mw


On Mon, Sep 30, 2019 at 1:32 PM Bob McGraw K4TAX 
wrote:

> Phil et al;
>
> My factory built KPA500 did a good be of cracking and popping for 3 or 4
> months when first received.   But it has stopped.  Guess all the metal
> parts settled into a comfortable position and all is now well.I
> considered opening it up, tightening or loosing bolts and screws.But
> procrastinator me just waited and it stopped by itself.   I  think
> that's good.
>
> Love the amp, it is a great performer.
>
> 73
>
> Bob, K4TAX
>
> On 9/30/2019 7:59 AM, Phillip Zminda wrote:
> > My kit-built KPA-500 is about 8 months old. Lately I’ve been running a
> lot of FT8 and FT4 at around 150 to 200 watts. I have really noticed a lot
> of loud creaking from the KPA-500 after a few QSOs on digital modes. The
> manual does indicate that some noise is normal but this does seem
> excessive, I don’t recall noticing it when on CW or SSB, although I haven’t
> done much contesting where the amp would have a lot of running time.
> >
> > I expect I may need to tighten some screws inside. I really don’t want
> to do any more disassembly than necessary and would prefer not to ship back
> to Elecraft either. What is the likely culprit and how much disassembly is
> required to get to the necessary screws?
> >
> > Thanks,
> >
> > Phil N3ZP
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Re: [Elecraft] KPA500 - Advantage of min fan speed?

[Michael Walker]

Andy

I would call Elecraft and ask them directly. Unless they respond directly here 
in the forum everyone is just guessing

Mike



> On Sep 30, 2019, at 1:13 PM, Andy Durbin  wrote:
> 
> "I got the thresholds from Elecraft directly.
> I never worried too much about them since the Elecraft guys are pretty smart 
> people and likely have done a lot more research on this than most of us."
> 
> That's possible but they only gave you half the information.  The thresholds 
> you quoted are for increasing temperature.  The fan speed step down 
> thresholds are lower than the step up thresholds.  (I have experimental data 
> for fan speeds up to, and including, 5 but have never seen 6 except when I 
> set min speed to 6 to hear how loud it was.)
> 
> I measured the fan speed thresholds over a year ago but that information 
> doesn't answer the question about any operation advantage of running min 
> speed  greater than zero.
> 
> 73,
> Andy, k3wyc
> 
> 
> 
> 
> 
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Re: [Elecraft] KPA500 - Advantage of min fan speed?

[Michael Walker]

I got the thresholds from Elecraft directly.

I never worried too much about them since the Elecraft guys are pretty
smart people and likely have done a lot more research on this than most of
us.

Mike va3mw


On Mon, Sep 30, 2019 at 9:28 AM Mike Maloney  wrote:

> Thanks Mike for the KPA-500 fan level settings.  That answers the question
> I was going to ask.   Could find no fan level info in the owners manual or
> from previous posts.
> I don't suppose any record kept of SPL  readings at the different levels?
>   Anyone done that?
>
> 73, Mike AC5P
>
>
> On Sunday, September 29, 2019, 10:08:41 PM CDT, Michael Walker <
> va...@portcredit.net> wrote:
>
>
> Here are the thresholds
>
>
> level 1: 50 degrees
> level 2: 55 degrees
> level 3: 60 degrees
> level 4: 65 degrees
> level 5: 70 degrees
> level 6: 80 degrees
>
> if the temperature gets above 90 degrees we throw a fault and drop into
> standby (with fault showing).
>
> Mike va3mw
>
> > On Sep 29, 2019, at 10:38 PM, Andy Durbin  wrote:
> >
> > The KPA500 offers a minimum fan speed setting which is settable by menu
> or serial command.  Some posters have advocated setting a minimum fan speed
> higher than zero, presumably thinking it offers some advantage in thermal
> management.
> >
> > Does anyone have any hard data that shows that the KPA500 runs cooler,
> or with lower peak fan speed, when minimum fan speed is set above zero.
> >
> > Running a rigorous test may not be easy since it would seem to require
> the same ambient temperature, same finals starting temperature, same TX
> periods, and same antenna system load.
> >
> > I'm curious because, before CQ-WW-RTTY I configured my KPA500 to set min
> fan speed to 1 at start of TX and reset min speed to zero 30 seconds after
> stop of TX.  Of course the fans ran faster than min speed during TX but I
> don't have any feel for whether the higher speeds were any more protracted
> than before the min speed change.
> >
> > Please share you experience of using min fan speed greater than zero,
> and any data if you have it.
> >
> > 73,
> > Andy, k3wyc
> >
> >
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Re: [Elecraft] KPA500 - Advantage of min fan speed?

[Michael Walker]

Here are the thresholds 


level 1: 50 degrees 
level 2: 55 degrees
level 3: 60 degrees
level 4: 65 degrees
level 5: 70 degrees
level 6: 80 degrees

if the temperature gets above 90 degrees we throw a fault and drop into standby 
(with fault showing).

Mike va3mw

> On Sep 29, 2019, at 10:38 PM, Andy Durbin  wrote:
> 
> The KPA500 offers a minimum fan speed setting which is settable by menu or 
> serial command.  Some posters have advocated setting a minimum fan speed 
> higher than zero, presumably thinking it offers some advantage in thermal 
> management.
> 
> Does anyone have any hard data that shows that the KPA500 runs cooler, or 
> with lower peak fan speed, when minimum fan speed is set above zero.
> 
> Running a rigorous test may not be easy since it would seem to require the 
> same ambient temperature, same finals starting temperature, same TX periods, 
> and same antenna system load.
> 
> I'm curious because, before CQ-WW-RTTY I configured my KPA500 to set min fan 
> speed to 1 at start of TX and reset min speed to zero 30 seconds after stop 
> of TX.  Of course the fans ran faster than min speed during TX but I don't 
> have any feel for whether the higher speeds were any more protracted than 
> before the min speed change.
> 
> Please share you experience of using min fan speed greater than zero, and any 
> data if you have it.
> 
> 73,
> Andy, k3wyc
> 
> 
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Re: [Elecraft] KPA-1500 failing on 160...AGAIN!

[Michael Walker]

I'm going to partially disagree with Jim :)

I agree on good quality connectors, when you have them.

I can honestly say I have yet to have a none-Amphenol fail since I learned
to solder them in 1972.

I can also honestly say I have had a connector fail when I did not assembly
it correctly.   This would be both Amphenol and non-Amphenol.PEBKAC

We all know how this discussion is going to go now

:)

Mike va3mw


On Fri, Sep 27, 2019 at 2:49 PM Jim Brown  wrote:

> On 9/27/2019 11:01 AM, j...@kk9a.com wrote:
> > If PL-259s are failing they are either poor quality connectors or there
> > are serious antenna issues causing excessive voltage.
>
> YES! Only first quality connectors and adapters should be used.
>
> I run legal limit to resonant antennas fed with 50 ohm and 75 ohm coax
> and hard line. Amphenol 83-1SP connectors are the standard throughout my
> station. I use type N only on hard line for which UHF connectors are not
> available. I've NEVER experienced any symptoms of arcing in connectors.
>
> I HAVE seen lots problems caused by poor quality connectors and
> adapters, and by poorly soldered coax connectors when putting stations
> together for Field Day and similar operations.
>
> My rule: In North America, if the connector doesn't say Amphenol 83-1SP
> or have a MIL spec number stamped on it, it is JUNK. The same holds true
> for adapters.
>
> 73, Jim K9YC
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Re: [Elecraft] KPA-1500 failing on 160...AGAIN!

[Michael Walker]

Like others have said

Even though your analyzer says the antenna is ok, that is only one part.
It can still be part of the problem at 1500 watts and if memory serves me
well, that is about 275V (RMS) at 50 ohms.

Something could be breaking down at that voltage so a good visual
inspection would help.  Look for arcing at each connector, Ununs, Baluns,
etc.

Mike va3mw

On Fri, Sep 27, 2019 at 9:18 AM Bob McGraw K4TAX 
wrote:

>  Check for burn marks or carbon traces, both on the inside and outside, of
> the SO-239 connectors.  These may look good with the antenna analyzer but
> fail under power.
>
> I've also had PL-259's arc from center pin to shell on the inside. These
> required removal/ disassembly of the coax in order to actually find the
> fault.
>
> In all cases, once a flashover occurs, replacement of the connector is the
> only solution.
>
> Bob, K4TAX
>
>
> Sent from my iPhone
>
> > On Sep 27, 2019, at 6:00 AM, John Langdon  wrote:
> >
> > If it also happens with a dummy load, and the antenna analyzers shows
> the same graph as before for R, X, then it is likely one of the connectors
> between the KPA1500 output and the antenna. The one such problem I had was
> old jumper I had put in to add an SWR bridge/monitor. It looked okay, and
> was finger tight, but when I replaced it in an A/B test, the problem went
> away.
> >
> > The other time, the antenna had changed its impedance curve, but was
> still 'okay' and the tuner was trying to retune for it.
> >
> > 73 John N5CQ
> >
> >
> > -Original Message-
> > From: elecraft-boun...@mailman.qth.net 
> On Behalf Of Jim Brown
> > Sent: Friday, September 27, 2019 4:19 AM
> > To: elecraft@mailman.qth.net
> > Subject: Re: [Elecraft] KPA-1500 failing on 160...AGAIN!
> >
> >> On 9/26/2019 10:26 PM, Peter Dougherty wrote:
> >> Any idea where to start looking here?
> >
> > And if it's a vertical, what about the radial system?
> >
> > 73, Jim K9YC
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Re: [Elecraft] Reflected power

[Michael Walker]

I only post stuff on this reflector so Jim can tear me a new one.

Mike va3mw


On Mon, Sep 16, 2019 at 1:21 AM Alan  wrote:

> As long as everything is well-shielded, the common-mode currents do not
> make the SWR reading incorrect.  They may affect the actual SWR just due
> to the additional radiation from the feedline common-mode currents, and
> the SWR meter will reflect that, but the reading is correct.
>
> Alan N1AL
>
>
>
> On 9/15/19 9:53 PM, Vic Rosenthal wrote:
> > He didn’t say common mode current WAS reflected power. He said that
> common mode current can cause incorrect SWR measurements, and that is true.
> >
> > Victor 4X6GP
> >
> >> On 16 Sep 2019, at 7:37, Jim Brown  wrote:
> >>
> >>> On 9/15/2019 6:05 PM, Michael Walker wrote:
> >>> Steve
> >>> 40 seems to be the killer band for weird things.  Dave's comments are
> the
> >>> first place to look.  Try also changing jumper cables.
> >>> What also could be happening is RF flowing back on feedline in a common
> >>> mode.  This RF gets measured as return energy and now, since the power
> is
> >>> higher, the return currents are higher and hence the high SWR reading.
> >> False. Common mode current is NOT reflected power.
> >>
> >> It is a fallacy that antennas like this do not need a serious common
> mode choke, and it must be at the feedpoint (that is, up in the air).
> Indeed, common mode current may be putting RF in the shack. Is everything
> in your station properly bonded? Lots of things that work at low power
> break with high power. See
> >>
> >> http://k9yc.com/GroundingAndAudio.pdf
> >>
> >> There are multiple versions of antennas using this name. Which one are
> you using, Steve?
> >>
> >> There are also fallacies about the performance of the double bazooka
> antenna. Study this report by a very good engineer debunking them.
> https://owenduffy.net/antenna/DoubleBazooka/index.htm
> >>
> >>   You
> >>> won't see this with your RigExpert.
> >>> Does the same problem happen into a dummy load?  If Yes, it is an amp
> >>> issue.  If no, it is a antenna/feedline issue.
> >>> I would try some RF chokes (Mix 43) on both ends of the feedline
> (antenna
> >>> and amp end).  I chased strange RF issues for decades until I read this
> >>> document by the YCCC/W1HIS.
> >>> http://www.yccc.org/Articles/W1HIS/CommonModeChokesW1HIS2006Apr06.pdf.
> >>> After that I bought about 100 Mix 43 chokes and added them everywhere.
> >> Mix 43 is a very poor material for HF chokes. The reason is
> complicated, but it boils down to it's relatively high Q and wide
> production tolerances, which make repeatable designs impossible.
> >>
> >> Mix 31 is FAR better. W1HIS is right about the significance of chokes
> to kill common mode current, but he didn't know about mix 31 when he wrote
> the referenced document -- it was a pretty new material at the time. See
> the latest version of my Choke Cookbook for detailed recommendations.
> http://k9yc.com/2018Cookbook.pdf
> >>
> >>
> >>> Not only does it help with unique RFI TX issues, it also helps with the
> >>> ability to hear.  The quieter you are, the more you can copy.
> >> Yes
> >>
> >> 73, Jim K9YC
> >>> Let us know how you make out.
> >>> Mike va3mw
> >>>> On Sun, Sep 15, 2019 at 8:05 PM  wrote:
> >>>> Check your connections. Loose or poor PL-259s. Also check to see if
> the
> >>>> antenna is close to something causing it to arc over. I had one
> antenna
> >>>> that
> >>>> used ladder line with solid conductors. Due to it moving around in
> the wind
> >>>> one of the conductors developed a break which tested fine under low
> power
> >>>> or
> >>>> with an analyzer but would have problems at higher power. I've since
> moved
> >>>> to Davis RF copper clad stranded ladder line.
> >>>>
> >>>> Dave wo2x
> >>>>
> >>>>
> >>>>
> >>>>
> >>>> -Original Message-
> >>>> From: elecraft-boun...@mailman.qth.net <
> elecraft-boun...@mailman.qth.net>
> >>>> On
> >>>> Behalf Of Stephen Rabinowitz
> >>>> Sent: Sunday, September 15, 2019 7:58 PM
> >>>> To: elecraft@mailman.qth.net
> >>>> Subject: [Elecraft] Reflected power
> >>>>
> >>>&g

Re: [Elecraft] Reflected power

[Michael Walker]

Steve

40 seems to be the killer band for weird things.  Dave's comments are the
first place to look.  Try also changing jumper cables.

What also could be happening is RF flowing back on feedline in a common
mode.  This RF gets measured as return energy and now, since the power is
higher, the return currents are higher and hence the high SWR reading.  You
won't see this with your RigExpert.

Does the same problem happen into a dummy load?  If Yes, it is an amp
issue.  If no, it is a antenna/feedline issue.

I would try some RF chokes (Mix 43) on both ends of the feedline (antenna
and amp end).  I chased strange RF issues for decades until I read this
document by the YCCC/W1HIS.
http://www.yccc.org/Articles/W1HIS/CommonModeChokesW1HIS2006Apr06.pdf.
After that I bought about 100 Mix 43 chokes and added them everywhere.

Not only does it help with unique RFI TX issues, it also helps with the
ability to hear.  The quieter you are, the more you can copy.

Let us know how you make out.

Mike va3mw


On Sun, Sep 15, 2019 at 8:05 PM  wrote:

> Check your connections. Loose or poor PL-259s. Also check to see if the
> antenna is close to something causing it to arc over. I had one antenna
> that
> used ladder line with solid conductors. Due to it moving around in the wind
> one of the conductors developed a break which tested fine under low power
> or
> with an analyzer but would have problems at higher power. I've since moved
> to Davis RF copper clad stranded ladder line.
>
> Dave wo2x
>
>
>
>
> -Original Message-
> From: elecraft-boun...@mailman.qth.net 
> On
> Behalf Of Stephen Rabinowitz
> Sent: Sunday, September 15, 2019 7:58 PM
> To: elecraft@mailman.qth.net
> Subject: [Elecraft] Reflected power
>
> My KPA-1500 switches from operate to standby due to reflected power more
> than 200w whenever drive power exceeds about 8 watts on 7 MHz. The forward
> power at that point is about 400w. The antenna is a double bazooka that
> shows an SWR of about 1.2 on a RigExpert AA-230Pro antenna analyzer. A
> Telepost LP-100A digital wattmeter shows SWR 1.3 with Z=52, R=49, Ph=17,
> and
> X=15. The KP1500 tunes to an SWR of what it labels 1.1 on that frequency.
> The latest firmware, version 2.27 is installed. This problem does not occur
> with double bazooka antennas on 80m or 30m, or with Yagis from 20m to 6m.
> It
> seems to me that there is a brief surge in reflected power at the very
> onset
> of the transmission that triggers the response, but that the reflected
> power
> quickly decreases to normal levels of just a few watts. Any ideas for
> dealing with this problem would be much appreciated.
> 73, Steve K2SN
>
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Re: [Elecraft] KPA-1500 on digital modes

[Michael Walker]

Just a reminder to Canadians running the KPA1500 or any other full power
amp in the contest this weekend.

Max RF out is limited to 750 watts (not our usual 2250w PEP for SSB).  Only
CW and SSB get to go above 750 watts.

Mike va3mw
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Re: [Elecraft] K3--Too much ALC creates energy on opposite sideband?

[Michael Walker]

Hi Fred  (Skip)

Sadly, many of those are splattering so wide that you can hear them on the
opposite sideband.  Unfortunately, a report of great audio does not mean
great IMD performance.

Don't take this the wrong way, I am not saying you have bad IMD it just
that you can't relate the 2 has being an indicator.

With a good radio and a good waterfall you can see it plain as day.  There
are a few locals (aka here in ve3 land) that I 'watch' routinely with their
top end Yaesu's (5000's) and they sound awesome, but they have the absolute
worst splatter you have ever seen.One guy on 80M was absolutely
understandable when I listened to him on USB.

Nate, glad you got it figured out.   I'm sure we have all been there (me
included).

73 all, Mike va3mw


On Wed, Aug 28, 2019 at 9:43 PM Nate Bargmann  wrote:

> I think I better take a mea culpa on this one.  One reply in a private
> email asked if I was using and amp and whether I was driving it too
> hard.  Well, some mornings this week I have depending on static levels
> and I operated the KS QSO Party this past weekend and ran 100W.  I
> normally run the amp (ALS-600) with the power setting at 70W.
>
> This is probably just a, "D'oh!" moment.  Yes, the K3 was still set for
> 100W.
>
> Incidentally,  My COMP runs about 2-3 bars on voice peaks and the ALC
> meter is in the 5-7 bars range on peaks as well.
>
> It's a PEBCAK3 issue.  ;-)
>
> --
>
> "The optimist proclaims that we live in the best of all
> possible worlds.  The pessimist fears this is true."
>
> Web: https://www.n0nb.us
> Projects: https://github.com/N0NB
> GPG fingerprint: 82D6 4F6B 0E67 CD41 F689 BBA6 FB2C 5130 D55A 8819
>
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Re: [Elecraft] K3--Too much ALC creates energy on opposite sideband?

[Michael Walker]

I agree with  Jim and what I tell hams every day since I seem to talk to a
bunch of them on the phone.

Do NOT use the settings other tell you, set up the radio by using the
Meters in the radio, in this case the ALC. That is the reason it is on the
radio.

The more ALC you have, the  more the radio is already shutting down down
your audio gain and hence the reason it is called Automatic Limiting
Control.

I am not a big fan of compression and in today's world there really is no
requirement to have it on.  Ask anyone who has been DXPedition end of a
DXPedition and they will tell you to turn it off as it is actually harder
to understand you.

It 'might' look like you have more power out, but it is not really in a
good way.

This is also a good time to review page 28 on "Voice Modes" and follow the
steps the way the Engineers who designed this want you to set up your
radio.  They are pretty smart people.  :)

I hope that helps, Mike va3mw


On Wed, Aug 28, 2019 at 4:33 PM Barry  wrote:

> Wes,
>  You make a very good point. The unwanted sideband will not be 0;
> there will be some "residue" that can be heard if the signal is strong
> enough. And, a lot has to do with the measurement method at the
> receiver.
>
>  Years ago, I was running DSBSC using a Globe DSB-100. I was told
> that my carrier was way down but my unwanted sideband was only 20 db
> down. That was interesting as I made no effort to suppress my unwanted
> sideband. The problem was the method that was used to make the
> measurements and the strength of my signal. So, determining the ratio of
> the two sidebands might be difficult, but it may be the correct
> approach, However, it will require being able to "see" both sidebands on
> an equal basis.
>
> 73,
> Barry
> K3NDM
>
> -- Original Message --
> From: "Wes" 
> To: elecraft@mailman.qth.net
> Sent: 8/28/2019 1:45:11 PM
> Subject: Re: [Elecraft] K3--Too much ALC creates energy on opposite
> sideband?
>
> >Although the manual doesn't say so, according to an ARRL review, the K3S
> is specified to have undesired sideband suppression of >50 dB.  ARRL claims
> an optimistic >70 dB.
> >
> >So if you are extremely strong at the other guy's place, he might easily
> hear an opposite sideband, even though your radio is operating correctly.
> Ask him what the ratio is.
> >
> >Wes  N7WS
> >
> >On 8/28/2019 9:40 AM, Nate Bargmann wrote:
> >>I received a note this morning advising that I should check my ALC as he
> >>is seeing some energy on USB when I check into a 75m voice net on LSB.
> >>I am using an MC-50 microphone and am running the mic gain at 35 and the
> >>compression at 11.  My thinking was that generating opposite sideband
> >>energy would be quite difficult with the K3's DSP.  Am I wrong?
> >>
> >>I'll try working with him some morning and back down the mic gain a bit
> >>and see what that does for him.
> >>
> >>73, Nate, N0NB
> >>
> >
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Re: [Elecraft] Subject: The ability to send screen shots

[Michael Walker]

Hi Dave

I don't agree with it keeping the traffic down by not adding screen shots.
In fact, it is worse.

If you go to the web interfaces of other ham radio reflectors you have the
ability to then also see the image that is attached to the email.

As for keeping the traffic down, this is the worst reflector for getting
off topic.

Mike va3mw


On Wed, Jul 31, 2019 at 4:47 AM Dave B via Elecraft <
elecraft@mailman.qth.net> wrote:

> This is a text mode list, so it would I think need more than a casual
> change to accommodate images or attachments.
>
> However...  There is nothing to stop you from posting images to your
> favourite photo sharing site (such as, but not only photobucket) then
> (most importantly) making it publicly accessible, then sharing the link
> to that image or page.
>
> That keeps the list traffic down, and still allows people to see what is
> being talked about.
>
> 73.
>
> Dave G0WBX
>
> --
> Created on and sent from a Unix like PC running and using free and open
> source software:
>
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Re: [Elecraft] The ability to send screen shots

[Michael Walker]

Hi Dick

I considered links, arguably more dangerous, and as a pro photographer, I
can make that happen.

However, that turns a simple 10 second screen grab with GreenShot into a
bit  more of an exercise including using imgur, and yet another account,
login exercise.

Even with Yahoo Groups and IOGroups, screen shots are  invaluable when
working through an issue and makes problem solving better rather than
someone saying 'it doesn't work' and then a large quantity of emails with a
thousand new questions that no one reads anyway.

We could go back to Fax machines or RTTY stick figures too!  :)

Mike va3mw


On Tue, Jul 30, 2019 at 6:18 PM Dick Dickinson 
wrote:

> Hi Mike,
>
> I believe 'links' are allowed on this reflector.
>
> Consider having images hosted on am image hosting site and provide a link
> to
> them, if that is not forbidden.
>
> A reader can choose to look or not.
>
> I have used imgur.com  I'm not aware of any problems related to doing
> such,
> but I won't be surprised if I am soon informed.
>
> 8 )
>
> Kind regards,
> Dick - KA5KKT
>
> --
> Hi All
>
> This message is to the administrators of this reflector.
>
> Might it be possible to have the ability to have small images, such as
> screen shots to be able to be passed via the reflector?
>
> They can be an amazing teaching and learning tool to help others see what
> is being discussed.
>
> In decades passed, this feature was turned off due to dial up modems and
> the images may have been a vehicle for virus payloads.  Of course, dial up
> modems are long gone for 99% of the people and a properly patched computer
> will not now allow a program to run from an image.
>
> Most, if not all other reflectors allow for this feature to be available.
>
> Many thanks in advance for this consideration.
>
> Mike va3mw
>
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[Elecraft] The ability to send screen shots

[Michael Walker]

Hi All

This message is to the administrators of this reflector.

Might it be possible to have the ability to have small images, such as
screen shots to be able to be passed via the reflector?

They can be an amazing teaching and learning tool to help others see what
is being discussed.

In decades passed, this feature was turned off due to dial up modems and
the images may have been a vehicle for virus payloads.  Of course, dial up
modems are long gone for 99% of the people and a properly patched computer
will not now allow a program to run from an image.

Most, if not all other reflectors allow for this feature to be available.

Many thanks in advance for this consideration.

Mike va3mw
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Re: [Elecraft] Pro Audio PS

[Michael Walker]

Dave

Just about every 'wallcube' switching power supply is auto input voltage
sensing.  This includes Laptops, iPads, and phone chargers.  Even the
Astron switching supplies can handle 110 or 220 although some will have an
internal switch to make that happen.  This is a great feature, but the cost
is switching power supplies can be RF noise if not choked correctly.

You just need a simple and inexpensive plug adapter depending on the
country you go to.

Look at the power supplies you know own and it will show their input range.

Mike va3mw



On Tue, Jul 30, 2019 at 5:42 AM David Wilcox via Elecraft <
elecraft@mailman.qth.net> wrote:

> I also have one of these power supplies and am very happy with it.  Can
> someone please explain how it knows what voltage is input (120 v versus 240
> v) to get the same 12 volts output.  Is there a different power cord?  Am
> sure it needs the correct wall plug adapter. Or is there just a 12 volt
> regulator in the output? Inquiring minds (my old 74 year old one at least)
> want to know.
>
> David J. Wilcox K8WPE’s iPad
>
> > On Jul 29, 2019, at 7:42 PM, JP Douglas  wrote:
> >
> > Hi all,
> >
> > I have one as well for my KX3, I've even taken it with me on holidays to
> the Caribbean were voltage is 240 volts, still plug and play, works on 120
> or 240 volts. Excellent product though in the shack I run the KX3 on
> battery/solar power.
> >
> > 73 de Jose Douglas KB1TCD
> >
> >
> > Sent from my iPad
> > __
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Re: [Elecraft] Charger

[Michael Walker]

As an option, and an Radio Control (RC) plane flier:

I use the Hobby Grade Smart Chargers that can handle the actual battery
chemistry for the KX2 on mine.

For less money than the ProAudio charger I get a very Smart Charger and can
handle many chemistries.

Ones like this plug directly in the wall and some even have bluetooth to
monitor your charge rates.  They are only $50.

https://www.amazon.com/B680AC-Dual-Power-6Amps-80Watts/dp/B00NLBZJ9C/ref=sr_1_10?keywords=r%2Fc+battery+charger=1564445686=gateway=8-10


Mike va3mw




On Mon, Jul 29, 2019 at 7:56 PM Gwen Patton  wrote:

> I THIRD the motion! I have one too for my KX3/PX3. I don't use it much now
> because I got the KXPA100, and a power supply to go with it, and it had
> extra Powerpole sockets, so I just run the radio off the amp's power supply
> now. But I got that Pro Audio power supply because of the low noise.
>
> For external battery, Talentcell has an 8300mAh @ 12v battery pack that has
> a 6A max output. I can run both the KX3 and the PX3 and transmit full power
> (without the amp) and that battery takes it no problem. Got it on Amazon.
> (They also have an 11000mAh pack that gives 6A at 12v as well.)
>
> Gwen, NG3P
>
> On Mon, Jul 29, 2019 at 7:06 PM Raymond Sills via Elecraft <
> elecraft@mailman.qth.net> wrote:
>
> > I second the motion on the Pro Audio Engineering supply.   I have one for
> > my KX3... it's compact and does the job perfectly.
> > 73 de RayK2ULRKX3 #211
> >
> >
> >
> > -Original Message-
> > From: Jim Finan 
> > To: Mark Moeller ; 'Elecraft' <
> > Elecraft@mailman.qth.net>
> > Sent: Mon, Jul 29, 2019 5:24 pm
> > Subject: Re: [Elecraft] Charger
> >
> > Mark,
> >
> > Try Pro Audio Engineering they have a good one that work for KX2 and KX3
> > with PX3:
> >
> > Proaudioeng.com
> >
> > Use them for my KX2 and KX3 with no issues or noise.
> >
> > Jim
> >
> > Jim Finan
> > AB4AC
> >
> >
> >
> > Sent from my BlackBerry - the most secure mobile device
> >
> >
> >   Original Message
> >
> >
> >
> > From: mark.moell...@gmail.com
> > Sent: July 29, 2019 4:29 PM
> > To: Elecraft@mailman.qth.net
> > Subject: [Elecraft] Charger
> >
> >
> > Appreciate any recommendations for a 110v charger for my KX2. This would
> be
> > to use while I am running at my home. Thanks
> >
> > KA9LWK
> >
> > --
> > Mark A. Moeller
> > 317-225-6630
> > mark.moell...@gmail.com
> > __
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>
>
> --
>
> -+-+-+-+-
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> http://quarktime.net
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Re: [Elecraft] Does the KX2 have Squelch?

[Michael Walker]

You have to be at the following revision:


  Rev. A6-2, 15 December, 2017 Copyright © 2017, Elecraft, Inc. All Rights
Reserved

FM Mode FM Mode

This added mode is intended primarily for use on the 10 meter band, and
repeater as well as simplex
operations are supported. External transverters may also be used (see KX2
Owner's Manual for set up).

- To enable or disable FM mode's availability, use MENU:FM MODE. VFO A
controls FM on/off. If FM mode is
enabled, it is available on all bands.

FM mode must be selected in order to use the controls shown below.
- To adjust squelch, tap FIL and rotate the AF GAIN knob.
- To adjust transmit offset frequency (repeater shift or split), use
MENU:RPT OFS and VFO A. Offset values can
be set at 20 KHz increments.
- To select transmit frequency offset direction, hold SPLIT. The transmit
offset direction (+/-/SIMPLEX) will be
shown on the VFO B display, alongside the transmit offset value. Successive
holds of SPLIT will rotate
through the three offset directions.
- Transmit offset and direction are remembered on a per-band basis. Saving
an FM mode memory stores
both.
- FM deviation may be changed with MENU:FM DEV. Use VFO A to set it. You
might have to unlock this
setting in order to change it. Hold the FREQ button down for 3 seconds to
clear lock status.
- PL (CTCSS) tone deviation may be adjusted from within MENU:FM DEV. While
in this menu, tap '1' to select
PL deviation. It can then be changed by rotating VFO A.
- PL tone frequency may be adjusted using MENU:FM TONE. Tapping '1' turns
PL tone on or off. If PL tone is
turned on, rotating VFO A changes its frequency.
- 1750 Hz tone burst is not supported at this time.

Mike va3mw

On Sat, Jul 6, 2019 at 8:23 PM Paul Gacek via Elecraft <
elecraft@mailman.qth.net> wrote:

> I’m trying to get an XV144 working for possible SOTA usage.
>
> As I might be operating FM and/or SSB I’ve been searching for squelch
> control on the KX2 but without luck. Does it support squelch?
>
> Paul
> W6PNG/M0SNA
> www.nomadic.blog
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Re: [Elecraft] Digital modes on 144MHz only

[Michael Walker]

Hi

These are the Transverters I use. 

Very good quality and they can be 10mhz gps locked. 


http://www.q5signal.com/

Mike va3mw


Sent from my iPad

> On Jul 5, 2019, at 7:16 AM, Conrad PA5Y  wrote:
> 
> Neither!
> 
> 
> I would buy a good transverter to use with a K3S. Two obvious choices.
> 
> 
> https://shop.kuhne-electronic.com/kuhne/en/shop/converter-transverte/transverter/TR+144++PRO++Transverter/?card=1621
> 
> TR 144 - PRO, Transverter - Kuhne Electronic Amateur Radio 
> Shop
> shop.kuhne-electronic.com
> Endkundenshop main_nav Produkte Meta-Description
> 
> 
> 
> http://www.ha1ya.hu/htmkepek/me2t_pro3_spec.htm
> 
> ME2T-PRO3 & ME2HT-PRO3 transverter 
> specifications
> www.ha1ya.hu
> • Frequency Coverage: 144.0-146.0MHz band. • IF in/out Frequency : 
> 28.0-30.0MHz, or 14.0-16.0MHz • LO frq stability: Low phase noise, 1ppm PDI 
> or optional 0.5ppm AXTAL TCXO's! • I/O Impedance : 50 Ohm unbalanced • Input 
> Voltage : 13.8VDC, +-5%, polarity mismatch, 10A -40dB EMI filter. • Power 
> Consumption : 0.55A on RX, 5.5A on TX @30W out version, 10.5A @50W version.
> Both of these transverters will outperform the Elecraft transverter with 
> respect to TX PN, IMD and RX IMD. They are both excellent, the HA1YA is 
> considerably cheaper and that is what I chose, actually in my case the ME2T 
> XP because I need 2 channels for Xpol EME. I have extensively tested all 
> these combinations.
> 
> 
> The IC9700 is nice and convenient and quite reasonable but both the TX and RX 
> performance is inferior to the K3S with either of the above transverters.
> 
> 
> 73
> 
> 
> Conrad PA5Y
> 
> 
> 
> 
> 
> From: elecraft-boun...@mailman.qth.net  on 
> behalf of Kjeld Holm 
> Sent: 04 July 2019 20:31
> To: Elecraft Reflector
> Subject: [Elecraft] Digital modes on 144MHz only
> 
> Digital modes on 144MHz only
> 
> I plan for a second station to use for digital modes on 144MHz only. If you 
> look at performance only (no price, no ergonomics, no use outside digital 
> modes on 144MHz) what would you prefer
> 
> 1)   K3/K3S with internal transverter
> 2)   IC-9700
> 
> In both cases I plan to use a 1kW amplifier.
> 
> Vy 73 de OZ1CCM, Kjeld
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Re: [Elecraft] CW problem

[Michael Walker]

Good morning 

Do you have any external programs connected via CAT control?

Mike va3mw

Sent from my iPad

> On Jul 5, 2019, at 6:58 AM, Roy Koeppe  wrote:
> 
> John, I think you may have won the Unique Problem Award with that one. Good 
> luck (sorry).
> 
> Roy K6XK
> 
> 
> I am trying to run down a CW transmit problem on my K3s. Anytime I change the 
> mode from LSB or USB on any band to CW it starts to send a “dit” without 
> stopping and I have to halt it by restoring the configuration. This does fix 
> it until I try to switch to CW again; and then, the same story.
> 
> I recently removed a Kent (straight key plug) and the problem showed up. Any 
> ideas?
> 
>John Freitag, WW4JF
> 
> 
> 
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Re: [Elecraft] When Transmitting on FT8 - KPA500 has issues - KD8ZYD

[Michael Walker]

Good to send the video

It sounds like the Sound card is dropping audio frames then and can he test
with WSJTx in their TUNE mode.  Does the same thing happen.

If it was me, I would review the sound card settings for the sound card
device.  Make sure it IS the one you think it is.

Could the computer be suffering from high DPCs.. aka, is it busy doing
something else like a virus scan or indexing?

This is one of those times that it would be good to know more about the
computer hardware, like CPU speed, memory, etc.

Mike va3mw


On Mon, Jul 1, 2019 at 11:15 PM Jack Brindle via Elecraft <
elecraft@mailman.qth.net> wrote:

> Fred sent me the video, which is actually very revealing. First the change
> rate is very rapid, higher than I initially expected. The asterisk is on
> constantly, and the power off time is not long enough for power to drop to
> zero. But what I found very interesting is that the output power indication
> on the K3 is fluctuating at the same rate as the KPA500 is indicating. That
> leads me to believe that the K3 output is rapidly changing on and off. The
> next question is what might be causing this - it might be the K3, but it
> also could be upstream, in Fred’s Signalink or perhaps the computer /
> program that is feeding audio to the radio system.
>
> With that in mind, and knowing the calibre of folks on the list who are
> very adept at digital setups, let's see if we can troubleshoot the system
> and get Fred going again the way things should be.
>
> 73!
> Jack, W6FB
>
>
> > On Jul 1, 2019, at 7:32 PM, Bob McGraw K4TAX 
> wrote:
> >
> > Sounds like the power from the K3 is too high.   Should be about 25 or
> so watts.  Actually, 20 watts drives my KPA500 to 500 watts output on all
> bands.  I trust the SWR as seen by the amplifier is 1.5:1 or less.
> >
> > Do you get any FAULT LED indications on the KPA500? You can use the
> KPA500 Utility to download and examine the fault table.
> >
> > 73
> >
> > Bob, K4TAX
> >
> >
> > On 7/1/2019 8:05 PM, Fred wrote:
> >> Hi,
> >>
> >> I have a K3, P3, KPA500, KAT500 and a SignaLink for sound.  Sometimes
> when
> >> I transmit on FT8 running full power on the KPA500, the KPA500 will
> click
> >> on/off.  The power doesn't turn on/off, it seems like a relay inside.
> The
> >> power meter will go to about 500 watts, then down to 0, then to abut 500
> >> watts...and down to 0 maybe once a second.  I have a short video I can
> send
> >> if someone would like to see it.  When I bypass the KPA500 and use 50
> watts
> >> or so just on the K3, no issues.
> >>
> >> Please let me know if you have any questions.
> >>
> >> 73, Fred
> >>
> >> KD8ZYD
> >
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Re: [Elecraft] K4 pre-distortion?

[Michael Walker]

Would having if be a deal breaker?

Mike

Sent from my iPad

> On Jun 15, 2019, at 6:59 AM, Dave  wrote:
> 
> I’ve not seen confirmation as to whether the K4 uses pre-distortion to
> improve the TX IMD levels. The inclusion of a sample input socket suggests
> it does. If so, does a barefoot K4 use pre-distortion and will there be a
> mod kit for the KPA500 to provide a sample output?
> 
> 73 Dave
> -- 
> Sent from my iPhone SE
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