Re: [Elecraft] KPA1500

[Rick Tavan]

I believe Alpha warns not even to try to move the amp with its transformer
installed. It is connectorized so you can remove the transformer in a few
minutes and then transport it and the chassis separately. Otherwise, you
risk bending the chassis under the weight of the transformer, assuming you
can move it at all! KPA1500 is a true breakthrough in weight for a
full-power amp!

/Rick N6XI

--

Rick Tavan
Truckee, CA

On Sun, Feb 25, 2018 at 10:59 AM, Jim Brown 
wrote:

> I can't even lift, let alone carry, the 87As that are on my operating
> desk. I got help from a neighbor ham carrying them in. Perhaps that might
> be a solution for others.
>
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Re: [Elecraft] KPA500/KAT500 Remote Software

[Rick Tavan]

KAT500 Remote and KPA500 Remote are excellent control programs. There are
three ways to access them remotely:

   1. Run them on a Windows machine at the radio site and access them via a
   remote desktop app such as Chrome Remote Desktop which runs natively on
   either Windows or Mac. The Windows machine at the radio site can be very
   inexpensive and, since it isn't used for general computing, can be very
   reliable. I do this sometimes and it works fine. My Windows server is an
   Intel NUC that's sized about 4"x4"x2". You can find cheaper, though.
   2. Run them as server apps on a Windows machine at the radio site and
   access them from a Windows machine running the same apps as clients. I do
   this most of the time and it works great. I do it from both a "real"
   Windows machine and from a virtual Windows machine running under VMware
   Fusion on a MacBook Pro. But beware that, although Fusion on the Mac can be
   made to work, it's a complex environment. I needed three professionals to
   help me get it working, including two on the Fusion team at VMware! (It was
   my son, who doesn't work at VMware, who finally figured out a fatal
   trackpad driver problem.)
   3. Run them on a local Windows machine or virtual Windows OS at the
   control site with remote serial ports at the radio site. This is the
   minimal hardware solution but it does require Fusion with the same caveat
   as above.

Remote control is a lot of fun if you can enjoy or at least tolerate the
system integration!

73,

/Rick N6XI


Rick Tavan
Truckee, CA

On Fri, Feb 23, 2018 at 9:58 AM, Chris Hallinan  wrote:

> Any solutions for MAC out there?
>
> http://www.elecraft.com/k2_remote.htm#k3remote
>
> I use MacLoggerDX for logging and basic rig parameter feedback for the log
> and I love it.  But I need a good remote solution on the KAT500, KPA500 and
> yeah, my K3.
>
> 73 de K1AY
> Chris
>
> --
> Life is like Linux - it never stands still.
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[Elecraft] K3 - KRX3 audio cuts out.

[Bill Coleman]

I’ve been experiencing an issue with my K3, and I’m wondering how to 
troubleshoot it. 

Here’s the symptom.

Often, when I’m trying to work a weak DX station, I’ll switch the sub receiver 
off and on, so I can better hear the DX station, then to try and hunt for the 
station he’s working. 

Lately, after switching a few times, the sub receiver audio will go dead. 
Changing the sub receiver volume makes no difference, it’s just not there. Once 
it does this, switching the sub receiver off and on does nothing. The audio 
does not come back until I power off the K3 and power it back on. 

Any one else experience this?

Bill Coleman, AA4LR, PP-ASELMail: aa...@arrl.net
Web: http://boringhamradiopart.blogspot.com
Quote: "Not within a thousand years will man ever fly!"
-- Wilbur Wright, 1901

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Re: [Elecraft] Advice needed: Remote Station Enhancement

[Don Wilhelm]

John and all,

This is a problem caused by the "way things work".
The original K3 did not have pullup resistors on the band data lines 
(correct by engineering practices, the pullup resistors should be in the 
receiving device).
BUT as a concession to those band decoders did not implement pullup 
resistors in their decoders, Elecraft got a lot of "flack" because the 
K3 did not work with those decoders.


As a result Elecraft added pullup resistors in the K3.  However those 
pullup resistors only work with devices which will respond to the +5 
volt high level.


There are some band decoders that DO provide pullup resistors, and some 
of them tie the pullup resistors to +12 volts.  Those band decoders will 
not work with the K3/K3S unless the pullup resistors in the band 
decoders are removed AND that the band decoder will respond to a +5 volt 
level for the logic high.  The result is that the K3 and band decoder 
"fight" for the logic high level.


IMHO, the original K3 design "did it right", and the problem lies with 
the band decoders.  The K3 addition of the internal pullup resistors 
caused problems with all except those band decoders that did not have 
internal pullup resistors.


73,
Don W3FPR

On 2/25/2018 9:08 PM, John Nogatch wrote:

I had difficulty with the Unified Microsystems BCD-14, i.e. the CMOS
inverter IC was overheating.

I eventually received the following advice from AB3CV, which I found to work.

-John AC6SL


From: Jim Miller 
Date: Sat, Dec 26, 2015 at 7:06 PM
Subject: Re: [Elecraft] K3 and Band Data
To: John Nogatch 


My BCD14 purchased this summer was unreliable as well. If you look at
the K3 (or K3s...the same) the Band Data outputs are open collector
pulled up by 2.2K in series with 200ohms. I knew this could be a
problem with anything which wasn't properly buffered so I looked at
the BCD14 schematic. I found the BCD-14 online schematic differed from
the unit I had after inspection with a ohm meter and magnifying glass.


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Re: [Elecraft] Advice needed: Remote Station Enhancement

[John Nogatch]

I had difficulty with the Unified Microsystems BCD-14, i.e. the CMOS
inverter IC was overheating.

I eventually received the following advice from AB3CV, which I found to work.

-John AC6SL


From: Jim Miller 
Date: Sat, Dec 26, 2015 at 7:06 PM
Subject: Re: [Elecraft] K3 and Band Data
To: John Nogatch 


My BCD14 purchased this summer was unreliable as well. If you look at
the K3 (or K3s...the same) the Band Data outputs are open collector
pulled up by 2.2K in series with 200ohms. I knew this could be a
problem with anything which wasn't properly buffered so I looked at
the BCD14 schematic. I found the BCD-14 online schematic differed from
the unit I had after inspection with a ohm meter and magnifying glass.

I probed my unit and found the optoisolators on my board had a current
transfer ratio insufficient to drive the decode chip input to a proper
logic low level when used with its supplied collector resistor and
driven by the K3s' modest pull up. After some discussion with the
supplier I changed the collector resistors to 33K and it works
perfectly now. The dark current on the optoisolator and the input bias
current on the decoder are insignificant making this resistor change
possible.

The improper logic levels on the board could easily result in
operating in the linear zone and oscillate as a result.

Good luck

jim ab3cv
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Re: [Elecraft] KPA1500

[Bill Johnson]

Please lets end this thread.  My question wasn't meant to be stupid or elicit 
responses other than could it be in two boxes? 

73,
Bill
K9YEQ

-Original Message-
From: elecraft-boun...@mailman.qth.net 
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of marvwhee...@nwlink.com
Sent: Sunday, February 25, 2018 11:26 AM
To: 'Elecraft Reflector' 
Subject: Re: [Elecraft] KPA1500

I would think that for the cost of shipping two packages he could find some 
young lad that would be glad to move the two boxes from a single carton and 
transport them to his ham shack. Sounds like he is over complicating the issue. 
I also have a bad back but try to be resourceful to get something accomplished.

Marv KG7V

-Original Message-
From: elecraft-boun...@mailman.qth.net 
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Alan
Sent: Sunday, February 25, 2018 9:10 AM
To: elecraft@mailman.qth.net
Subject: Re: [Elecraft] KPA1500

Or go to Walmart and buy a $30 hand truck.

Alan N1AL


On 02/25/2018 07:44 AM, Don Wilhelm wrote:
> No special arrangements should be necessary.
> When the large box is delivered, he can open it (without any need to 
> lift it), and remove the two boxes one at a time.
> 
> If he cannot easily remove the two boxes from the larger one because 
> it is a tight fit, it is easy to bend one flap down and roll the box 
> over that flap and over again so the box is sitting on its open end.
> Then it is easy to lift the outer box off with no struggle.
> The way the gear is packaged, it will survive that "rolling over" with 
> no harm at all.
> 
> I do that regularly at trade shows for the K3, and more recently the
> KPA1500 because it is difficult to lift the units vertically out of 
> the box due to the tight fit and the resistance of the foam shipping 
> material to the sides of the box.  Much easier to roll it over and 
> lift off the box.
> 
> 73,
> Don W3FPR
> 
> On 2/25/2018 3:53 AM, G4GNX wrote:
> 
>>
>> What Bill wants is two SEPARATE boxes to be shipped to him, without 
>> an outer wrapper to combine them. He wants to be able to carry EACH 
>> box separately from his door to his shack, so that he doesn't strain 
>> his back.
>>
>> Perhaps special arrangements can be made for Bill? My other 
>> suggestion would be to have the package delivered to the front door, 
>> then remove each box individually and carry them separately indoors.
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Re: [Elecraft] KPA1500

[Bill Johnson]

The issue would be future shipping for whatever reasons.  I can unpack here but 
other shipping or handling issues put it above what I can handle for personal 
reasons based on total weight.  I sold my THP 2.5KFX because of weight.  I was 
stressed to max.  Glad it is gone.  The KAP500 is super light for all it does.

73,
Bill
K9YEQ

-Original Message-
From: elecraft-boun...@mailman.qth.net 
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Don Wilhelm
Sent: Sunday, February 25, 2018 9:45 AM
To: elecraft@mailman.qth.net
Subject: Re: [Elecraft] KPA1500

No special arrangements should be necessary.
When the large box is delivered, he can open it (without any need to lift it), 
and remove the two boxes one at a time.

If he cannot easily remove the two boxes from the larger one because it is a 
tight fit, it is easy to bend one flap down and roll the box over that flap and 
over again so the box is sitting on its open end.  Then it is easy to lift the 
outer box off with no struggle.
The way the gear is packaged, it will survive that "rolling over" with no harm 
at all.

I do that regularly at trade shows for the K3, and more recently the
KPA1500 because it is difficult to lift the units vertically out of the box due 
to the tight fit and the resistance of the foam shipping material to the sides 
of the box.  Much easier to roll it over and lift off the box.

73,
Don W3FPR

On 2/25/2018 3:53 AM, G4GNX wrote:

> 
> What Bill wants is two SEPARATE boxes to be shipped to him, without an 
> outer wrapper to combine them. He wants to be able to carry EACH box 
> separately from his door to his shack, so that he doesn't strain his back.
> 
> Perhaps special arrangements can be made for Bill? My other suggestion 
> would be to have the package delivered to the front door, then remove 
> each box individually and carry them separately indoors.
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[Elecraft] Elecraft CW Net Report

[kevinr]

Good Evening,

    QSB was deep on both bands, rapid at times too.  It was pretty 
chilly in my shack today so my fingers would not work right.  I am 
thinking of mounting a 5Y3 on the side of my K3.  The glow would be 
comforting and it would allow me to warm my fingers when not sending.  
The heater may draw more current but it's all for a good cause.



On 14049.5 kHz at 2300z:

W0CZ - Ken - ND

KL7CW - Rick - AK

K6XK - Roy - IA

K4JPN - Steve - GA

W4CDS - Jim - MI    very weak getting eaten by QSB

KL7IDA - Bill - AK


On 7045 kHz at 0100z:

NO8V - John - MI

K4TO - John - KY

W0CZ - Ken - ND

K0DTJ - Brian - CA

K6PJV - Dale - CA

KL7CW - Rick - AK

V31FA - Alan - Belize

AE6JV - Bill - CA


73,

    Kevin.  KD5ONS

-

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Re: [Elecraft] KPA500 Faulting on high SWR on power rise

[Don Wilhelm]

While all the "facts" about the voltage ratings of the gas discharge 
protectors are correct - that is only true if those devices are new and 
have not 'squashed' a number of events.


Please consider that this ham's problem with the Alpha-Delta protector 
may be simply that the gas-discharge device in the protector has 
absorbed enough energy (both from lightning and from RF) that its rating 
is no longer the same as a new one.


Those devices do degrade after a number of "events"-
That is the reason why Alpha-Delta gas discharge devices are replaceable 
- they do not last forever.  Some other protection devices do not have 
parts that are as easily replaceable, and you have to replace the entire 
protector.


73,
Don W3FPR

On 2/25/2018 6:42 PM, j...@kk9a.com wrote:

Your 5KW example is RMS voltage and peak would be 707v. I am not sure how
much moderate SWR effect this value but clearly the 1000v Alpha Delta
discharge tube should be adequate for an Elecraft KPA-500 unless the SWR is
horrible.

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[Elecraft] Want My K-2 Back

[Dauer, Edward]

 I'd wager there are people reading this list who would build one for you, just 
because it's such a great thing to build.

I've done three, and I plan to do a fourth.  I'd offer to do another but for 
the facts that I couldn't guarantee a time frame and, if I did run into 
trouble, I don't have the lab equipment (or the in-depth knowledge) to 
troubleshoot really complex problems myself.  

But I would understand if your own original was what you really want.  My 
present call was the original issue in 1957.  Getting it back a few years ago 
was a nostalgic attempt to be 13 again.  

Ted, KN1CBR

   
Message: 9
Date: Sun, 25 Feb 2018 20:47:44 +
From: James Walker 
To: Wayne Burdick 
Cc: Elecraft Reflector 
Subject: Re: [Elecraft] Want My K-2 Back
Message-ID:



Content-Type: text/plain; charset="utf-8"

Thanks Wayne. You and Eric are too kind. Sadly, the years have taken their 
toll on my ambitious youth. I?m less patient these days, and far from as steady 
of hand as I was then. Perhaps my efforts to reunite with my K2 are a last gasp 
to hold on to my memories of a 16 year old kid with a new novice license. Wow! 
That?s lot of baggage to heap on a lowly K2. Maybe fate will lead me to the 
radio. Anyway, I couldn?t build a new one now, even if you threw a KPA1500 into 
the deal. BUT, if I do find the radio, how about I bring it to Dayton and 
collect those signatures. The Dayton booth is where I bought my lost K-2.  And 
if experience is any guide, I?ll buy a KX2 while I?m there.

Thanks for being a friend to me and all of us Elecraft enthusiasts.

Jimmy, WA4ILO




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Re: [Elecraft] KX2 echo in the speaker

[John Hiatt]

How hard are you touching it?  I am wondering if it could be the internal 
microphone picking it up.


John, KC7DRI


From: elecraft-boun...@mailman.qth.net  on 
behalf of Irma & Linas(LY2H) 
Sent: Sunday, February 25, 2018 1:03 PM
To: elecraft@mailman.qth.net
Subject: [Elecraft] KX2 echo in the speaker

Hello group,

I have a bizzair effect in my KX2. When I touch the chassis of the radio
 each  touch corresponds with the echo in the speaker. The radio is not
connected to the antenna, could run on the battery or the PS, the effect is
there. Touching also makes the Smeter bar move a bit.
Does anybody has/had the same issue and know the solution?

Thanks , Linas LY2H
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Re: [Elecraft] [K3] low audio volume and low s meter readings

[Buck]

Try running the Rx Gain calibration routine in the K3 Utility?

k4ia, Buck
K3# 101
Honor Roll  8B DXCC
EasyWayHamBooks.com

On 2/25/2018 6:12 PM, Gary Slagel via Elecraft wrote:

I took my k3 to Belize for ARRL DX CW and pre contest worked a few contacts all 
of which told me I had a great signal while I could barely hear them.  A couple 
I knew were KW stations and I was concerned I wasn't hearing well.  Performance 
during the contest seemed to  confirm that I was being heard better then I was 
hearing.  I had the af gain at max for most of the time.
At home I've set up my k3 next to my k3s for comparison testing.  The k3 
definitely has lower volume and the S meter is reading low.
The K3S has an ambient noise level of about s6 on 20M while the K3 S meter 
shows an ambient noise level of 0.The K3S has a comfortable af gain level of 
about noon while K3 is comfortable with af gain fully clockwise (both with rf 
gain at max)Signals seem to be stronger on the K3S.
I've been through the 'Receive:Receive signal level too low' section of the 
troubleshooting guide in the manual and all seems good (didn't try to change 
config:REF CAL but its value was very close to the default).
Would appreciate any wisdom before I resort to sending it in for a tune up.
Thanks,
Gary KT0A
  
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[Elecraft] KPA500 Faulting on high SWR on power rise

[john]

Your 5KW example is RMS voltage and peak would be 707v. I am not sure how
much moderate SWR effect this value but clearly the 1000v Alpha Delta
discharge tube should be adequate for an Elecraft KPA-500 unless the SWR is
horrible.

John KK9A


From: K4TAX
Date: Sat Feb 24 19:46:55 EST 2018

Based on the specification of 500 volts peak,5KW at 50 ohms = 500 
volts.  It would seem the PL-259 is adequate for ham radio applications 
per specification to 0.3 GHZ or 300 MHz without issues. Of course 
one is dealing with 50 ohms, which implies essentially a 1:1 SWR.

73

Bob, K4TAX

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Re: [Elecraft] Advice needed: Remote Station Enhancement

[Ken K6MR]

The UM decoders don’t put 12V on the input side.  They have optoisolators on 
the input side that can be driven directly from the K3 without interfering with 
the KPA/KAT setups.  I’ve got several in my setup and they work great.  The 
outputs are active low, so if you have high side driven relays you need their 
high side driver board also.

Ken K6MR



From: Jack Brindle
Sent: Sunday, February 25, 2018 14:42
To: Reflector Elecraft
Subject: Re: [Elecraft] Advice needed: Remote Station Enhancement

Interesting idea, but I would talk to N6TV before going too far down this path. 
The reason is the introduction of +12V on the Band lines will cause issues in 
the KPA500 and KAT500. There is a series-connected 220 ohm protection resistor 
in the K3’s Band signals. When +12V is placed on the band lines, the band 
voltage no longer is allowed to go below the TTL threshold needed by the KPA 
and KAT. N6TV has taken a good look at this, and may have a good solution for 
driving the UM decoder in this setup.

There are other decoders that use standard TTL voltage levels that work very 
well. These include the Elecraft KRC2, the Top-Ten Devices Band Aide decoder, 
The YCCC MOAS (which may be overkill for this use) and several others that are 
also very good.

73!

Jack, W6FB


> On Feb 25, 2018, at 2:09 PM, Dave Hachadorian  wrote:
> 
> For a band decoder, I like the Unified Microsystems device:
> http://www.unifiedmicro.com/decoder.html
> 
> To use this device, you would put +12 VDC on all the relay coils, and the 
> decoder would ground the appropriate relay to pull it in.  I would use cat 6 
> cable for the run out to the relays, with ground/signal on each twisted pair.
> 
> 
> Dave Hachadorian, K6LL
> Yuma, AZ
> 
> 
> -Original Message- 
> From: Dennis Ashworth 
> Sent: Sunday, February 25, 2018 2:50 PM 
> To: elecraft@mailman.qth.net 
> Subject: [Elecraft] Advice needed: Remote Station Enhancement 
> 
> I’ve been remoting my K3, KPA500, KAT500 station via the RemoteRig boxes and 
> K3/0 mini for two years with solid results. Later this year, I want to make 
> several enhancements, including the replacement of the KPA500 and KAT500 with 
> a KPA1500. The amp/tuner should be a fairly straightforward hardware 
> replacement, but it does necessitate a few station changes which I’m not 
> certain how to implement. Let me explain and hopefully the masses have 
> ideas/approaches for consideration.
> 
> 1. I feed a HyTower vertical (optimized for 40M & 80M) on all bands. Where 
> the driving impedance is close to 50 ohms on 40M & 80 (my bands of interest) 
> there has been no attempt to match the HyTower on other bands. With the 
> KAT500, matching was not a problem and I reduced mismatch losses on the feed 
> line by using hardline from the in-shack tuner to the antenna.
> 
> When I switch to the KPA1500, operation on the unmatched bands might prove 
> problematic. To address this, I plan to provide switchable matching networks 
> to transform the HyTower drive impedance on each band to something the 
> KPA1500 can match. I can design the required impedance transformation 
> networks, but not sure how to automatically select the various (relay based) 
> impedance networks required for each band. Clearly, I need to grab band data 
> from the K3, but what’s the best hardware to use for this task? 
> 
> BTW, I want to power the KPA1500 ON with the K3, which requires a Y-cable 
> modification, or perhaps one of the N6TV boxes? 
> 
> 2. I want to interface a K9AY RX antenna 4 position switch to some sort of UI 
> that I can access remotely. I can design an electrical interface to the K9AY 
> switch, but controlling and monitoring remotely is the issue. Ideas?
> 
> 3. I have a Windows computer available at each end of the radio circuit. The 
> only other hardware is a SignalLink used for digital mods.
> 
> 4. Configuring the station for future antenna enhancements (e.g. SteppIR if 
> we live long enough to see sunspots return!) are great if they come without 
> significant reliability impacts.
> 
> Any ideas how to accomplish the required switching/monitoring? 
> 
> Thanks
> Dennis, K7FL
> Currently in Panama City, Florida
> Station in Battle Ground, WA
> 
> 
> 
> 
> 
> Sent from my iPad
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[Elecraft] [K3] low audio volume and low s meter readings

[Gary Slagel via Elecraft]

I took my k3 to Belize for ARRL DX CW and pre contest worked a few contacts all 
of which told me I had a great signal while I could barely hear them.  A couple 
I knew were KW stations and I was concerned I wasn't hearing well.  Performance 
during the contest seemed to  confirm that I was being heard better then I was 
hearing.  I had the af gain at max for most of the time.
At home I've set up my k3 next to my k3s for comparison testing.  The k3 
definitely has lower volume and the S meter is reading low.  
The K3S has an ambient noise level of about s6 on 20M while the K3 S meter 
shows an ambient noise level of 0.The K3S has a comfortable af gain level of 
about noon while K3 is comfortable with af gain fully clockwise (both with rf 
gain at max)Signals seem to be stronger on the K3S.
I've been through the 'Receive:Receive signal level too low' section of the 
troubleshooting guide in the manual and all seems good (didn't try to change 
config:REF CAL but its value was very close to the default).
Would appreciate any wisdom before I resort to sending it in for a tune up.
Thanks,
Gary KT0A
 
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Re: [Elecraft] Advice needed: Remote Station Enhancement

[Jack Brindle]

Interesting idea, but I would talk to N6TV before going too far down this path. 
The reason is the introduction of +12V on the Band lines will cause issues in 
the KPA500 and KAT500. There is a series-connected 220 ohm protection resistor 
in the K3’s Band signals. When +12V is placed on the band lines, the band 
voltage no longer is allowed to go below the TTL threshold needed by the KPA 
and KAT. N6TV has taken a good look at this, and may have a good solution for 
driving the UM decoder in this setup.

There are other decoders that use standard TTL voltage levels that work very 
well. These include the Elecraft KRC2, the Top-Ten Devices Band Aide decoder, 
The YCCC MOAS (which may be overkill for this use) and several others that are 
also very good.

73!

Jack, W6FB


> On Feb 25, 2018, at 2:09 PM, Dave Hachadorian  wrote:
> 
> For a band decoder, I like the Unified Microsystems device:
> http://www.unifiedmicro.com/decoder.html
> 
> To use this device, you would put +12 VDC on all the relay coils, and the 
> decoder would ground the appropriate relay to pull it in.  I would use cat 6 
> cable for the run out to the relays, with ground/signal on each twisted pair.
> 
> 
> Dave Hachadorian, K6LL
> Yuma, AZ
> 
> 
> -Original Message- 
> From: Dennis Ashworth 
> Sent: Sunday, February 25, 2018 2:50 PM 
> To: elecraft@mailman.qth.net 
> Subject: [Elecraft] Advice needed: Remote Station Enhancement 
> 
> I’ve been remoting my K3, KPA500, KAT500 station via the RemoteRig boxes and 
> K3/0 mini for two years with solid results. Later this year, I want to make 
> several enhancements, including the replacement of the KPA500 and KAT500 with 
> a KPA1500. The amp/tuner should be a fairly straightforward hardware 
> replacement, but it does necessitate a few station changes which I’m not 
> certain how to implement. Let me explain and hopefully the masses have 
> ideas/approaches for consideration.
> 
> 1. I feed a HyTower vertical (optimized for 40M & 80M) on all bands. Where 
> the driving impedance is close to 50 ohms on 40M & 80 (my bands of interest) 
> there has been no attempt to match the HyTower on other bands. With the 
> KAT500, matching was not a problem and I reduced mismatch losses on the feed 
> line by using hardline from the in-shack tuner to the antenna.
> 
> When I switch to the KPA1500, operation on the unmatched bands might prove 
> problematic. To address this, I plan to provide switchable matching networks 
> to transform the HyTower drive impedance on each band to something the 
> KPA1500 can match. I can design the required impedance transformation 
> networks, but not sure how to automatically select the various (relay based) 
> impedance networks required for each band. Clearly, I need to grab band data 
> from the K3, but what’s the best hardware to use for this task? 
> 
> BTW, I want to power the KPA1500 ON with the K3, which requires a Y-cable 
> modification, or perhaps one of the N6TV boxes? 
> 
> 2. I want to interface a K9AY RX antenna 4 position switch to some sort of UI 
> that I can access remotely. I can design an electrical interface to the K9AY 
> switch, but controlling and monitoring remotely is the issue. Ideas?
> 
> 3. I have a Windows computer available at each end of the radio circuit. The 
> only other hardware is a SignalLink used for digital mods.
> 
> 4. Configuring the station for future antenna enhancements (e.g. SteppIR if 
> we live long enough to see sunspots return!) are great if they come without 
> significant reliability impacts.
> 
> Any ideas how to accomplish the required switching/monitoring? 
> 
> Thanks
> Dennis, K7FL
> Currently in Panama City, Florida
> Station in Battle Ground, WA
> 
> 
> 
> 
> 
> Sent from my iPad
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Re: [Elecraft] Advice needed: Remote Station Enhancement

[Dave Hachadorian]

For a band decoder, I like the Unified Microsystems device:
http://www.unifiedmicro.com/decoder.html

To use this device, you would put +12 VDC on all the relay coils, and the 
decoder would ground the appropriate relay to pull it in.  I would use cat 6 
cable for the run out to the relays, with ground/signal on each twisted pair.


Dave Hachadorian, K6LL
Yuma, AZ


-Original Message- 
From: Dennis Ashworth 
Sent: Sunday, February 25, 2018 2:50 PM 
To: elecraft@mailman.qth.net 
Subject: [Elecraft] Advice needed: Remote Station Enhancement 

I’ve been remoting my K3, KPA500, KAT500 station via the RemoteRig boxes and 
K3/0 mini for two years with solid results. Later this year, I want to make 
several enhancements, including the replacement of the KPA500 and KAT500 with a 
KPA1500. The amp/tuner should be a fairly straightforward hardware replacement, 
but it does necessitate a few station changes which I’m not certain how to 
implement. Let me explain and hopefully the masses have ideas/approaches for 
consideration.

1. I feed a HyTower vertical (optimized for 40M & 80M) on all bands. Where the 
driving impedance is close to 50 ohms on 40M & 80 (my bands of interest) there 
has been no attempt to match the HyTower on other bands. With the KAT500, 
matching was not a problem and I reduced mismatch losses on the feed line by 
using hardline from the in-shack tuner to the antenna.

When I switch to the KPA1500, operation on the unmatched bands might prove 
problematic. To address this, I plan to provide switchable matching networks to 
transform the HyTower drive impedance on each band to something the KPA1500 can 
match. I can design the required impedance transformation networks, but not 
sure how to automatically select the various (relay based) impedance networks 
required for each band. Clearly, I need to grab band data from the K3, but 
what’s the best hardware to use for this task? 

BTW, I want to power the KPA1500 ON with the K3, which requires a Y-cable 
modification, or perhaps one of the N6TV boxes? 

2. I want to interface a K9AY RX antenna 4 position switch to some sort of UI 
that I can access remotely. I can design an electrical interface to the K9AY 
switch, but controlling and monitoring remotely is the issue. Ideas?

3. I have a Windows computer available at each end of the radio circuit. The 
only other hardware is a SignalLink used for digital mods.

4. Configuring the station for future antenna enhancements (e.g. SteppIR if we 
live long enough to see sunspots return!) are great if they come without 
significant reliability impacts.

Any ideas how to accomplish the required switching/monitoring? 

Thanks
Dennis, K7FL
Currently in Panama City, Florida
Station in Battle Ground, WA





Sent from my iPad
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Re: [Elecraft] Advice needed: Remote Station Enhancement

[Mark Goldberg]

Are you sure the KPA1500 will not be able to tune your antennas? It
includes a tuner, and I would expect it to be capable.

I have been using Arduinos to control things, as they have lots of I/O and
appear to the computer as a USB serial port. Those serial ports can be
remoted via software, although I have not done it. I write simple software
that takes commands over the USB serial port and replies with a response.
See an example at

https://sites.google.com/site/spectrumlabtesting/home/usb-controlled-rf-switch

Maybe you can modify it to control something else. There are Arduinos with
multiple serial ports and lots more I/O that may be useful too. If you have
not tried it, programming an Arduino is not that hard and there are plenty
of examples out there to do almost anything you can think of.

I can't help much with the other stuff, as I have a KPA500 but none of the
other stuff you listed.

73,

Mark
W7MLG

On Sun, Feb 25, 2018 at 2:50 PM, Dennis Ashworth  wrote:

> I’ve been remoting my K3, KPA500, KAT500 station via the RemoteRig boxes
> and K3/0 mini for two years with solid results. Later this year, I want to
> make several enhancements, including the replacement of the KPA500 and
> KAT500 with a KPA1500. The amp/tuner should be a fairly straightforward
> hardware replacement, but it does necessitate a few station changes which
> I’m not certain how to implement. Let me explain and hopefully the masses
> have ideas/approaches for consideration.
>
> 1. I feed a HyTower vertical (optimized for 40M & 80M) on all bands. Where
> the driving impedance is close to 50 ohms on 40M & 80 (my bands of
> interest) there has been no attempt to match the HyTower on other bands.
> With the KAT500, matching was not a problem and I reduced mismatch losses
> on the feed line by using hardline from the in-shack tuner to the antenna.
>
> When I switch to the KPA1500, operation on the unmatched bands might prove
> problematic. To address this, I plan to provide switchable matching
> networks to transform the HyTower drive impedance on each band to something
> the KPA1500 can match. I can design the required impedance transformation
> networks, but not sure how to automatically select the various (relay
> based) impedance networks required for each band. Clearly, I need to grab
> band data from the K3, but what’s the best hardware to use for this task?
>
> BTW, I want to power the KPA1500 ON with the K3, which requires a Y-cable
> modification, or perhaps one of the N6TV boxes?
>
> 2. I want to interface a K9AY RX antenna 4 position switch to some sort of
> UI that I can access remotely. I can design an electrical interface to the
> K9AY switch, but controlling and monitoring remotely is the issue. Ideas?
>
> 3. I have a Windows computer available at each end of the radio circuit.
> The only other hardware is a SignalLink used for digital mods.
>
> 4. Configuring the station for future antenna enhancements (e.g. SteppIR
> if we live long enough to see sunspots return!) are great if they come
> without significant reliability impacts.
>
> Any ideas how to accomplish the required switching/monitoring?
>
> Thanks
> Dennis, K7FL
> Currently in Panama City, Florida
> Station in Battle Ground, WA
>
>
>
>
>
> Sent from my iPad
> __
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[Elecraft] Advice needed: Remote Station Enhancement

[Dennis Ashworth]

I’ve been remoting my K3, KPA500, KAT500 station via the RemoteRig boxes and 
K3/0 mini for two years with solid results. Later this year, I want to make 
several enhancements, including the replacement of the KPA500 and KAT500 with a 
KPA1500. The amp/tuner should be a fairly straightforward hardware replacement, 
but it does necessitate a few station changes which I’m not certain how to 
implement. Let me explain and hopefully the masses have ideas/approaches for 
consideration.

1. I feed a HyTower vertical (optimized for 40M & 80M) on all bands. Where the 
driving impedance is close to 50 ohms on 40M & 80 (my bands of interest) there 
has been no attempt to match the HyTower on other bands. With the KAT500, 
matching was not a problem and I reduced mismatch losses on the feed line by 
using hardline from the in-shack tuner to the antenna.

When I switch to the KPA1500, operation on the unmatched bands might prove 
problematic. To address this, I plan to provide switchable matching networks to 
transform the HyTower drive impedance on each band to something the KPA1500 can 
match. I can design the required impedance transformation networks, but not 
sure how to automatically select the various (relay based) impedance networks 
required for each band. Clearly, I need to grab band data from the K3, but 
what’s the best hardware to use for this task? 

BTW, I want to power the KPA1500 ON with the K3, which requires a Y-cable 
modification, or perhaps one of the N6TV boxes? 

2. I want to interface a K9AY RX antenna 4 position switch to some sort of UI 
that I can access remotely. I can design an electrical interface to the K9AY 
switch, but controlling and monitoring remotely is the issue. Ideas?

3. I have a Windows computer available at each end of the radio circuit. The 
only other hardware is a SignalLink used for digital mods.

4. Configuring the station for future antenna enhancements (e.g. SteppIR if we 
live long enough to see sunspots return!) are great if they come without 
significant reliability impacts.

Any ideas how to accomplish the required switching/monitoring? 

Thanks
Dennis, K7FL
Currently in Panama City, Florida
Station in Battle Ground, WA





Sent from my iPad
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Re: [Elecraft] K3s Bug or Feature?

[Michael Blake]

Thanks Lyle.  I never even thought to look there :). I have not yet updated any 
firmware and assumed the manual plus Errata sheet included all of the 
configuration options that I might need.  Another good learning point for me.

Thank you very much Lyle.

Very73 - Mike - K9JRI







> On Feb 25, 2018, at 3:57 PM, Lyle Johnson  wrote:
> 
> The information is in the firmware real ease notes.
> 
> 73,
> 
> Lyle
> 
> Sent from my iPhone
> 
>> On Feb 25, 2018, at 1:21 PM, Michael Blake > > wrote:
>> 
>> Ken (K6MR) answered my question, it is a feature.  I still can not find this 
>> in the K3s’s Owners Manual but Ken was 100% right.
>> 
>> Here is what he had to say
>> 
>> "It’s a feature.  It allows recording of the transmitted audio regardless of 
>> the monitor level.  If you open Config -> Lin Out and tap 2, you’ll see 
>> t=xxx.  This is the level of the output.  Setting to zero should solve your 
>> problem.
>> 
>> Ken K6MR”
>> 
>> Thanks Ken!
>> 
>> 
>> 
>> 
>> 
>> 
>> 
>>> On Feb 25, 2018, at 11:53 AM, Michael Blake  wrote:
>>> 
>>> On my recently acquired K3s (MCU 05.62, FPF 01.26, DSP1 02.88, DSP2 N?A, 
>>> DVR N/A), Serial number 11501,  I have notice a USB audio anomaly that I do 
>>> not understand nor can I find described in the manual.
>>> 
>>> If you monitor the USB audio output port on the attached computer you will 
>>> hear, or see on the audio display of a scope application, fldigi waterfall 
>>> or monitor speaker any audio that is being used to modulate the 
>>> transmitter.  The transmitter can even be in the TEST mode where no actual 
>>> output occurs.  This “looped back” audio is unaffected by the MON function 
>>> and does not vary in amplitude with MON set anywhere from 0 to maximum 
>>> value.
>>> 
>>> It does not matter if the source of the audio is the FP mic, RP mic or Line 
>>> In audio source.  The audio is looped back to the USB output port at a 
>>> constant amplitude.
>>> 
>>> This occurs when the LIN OUT configuration option is set to NOR and at any 
>>> amplitude. Only when the LIN OUT option is set to PHONES is the loopback 
>>> path broken and the MON function performs as expected with the looped back 
>>> level changing from OFF (MON = 0) to a varying level as the MON level is 
>>> increased from 1 to 60.
>>> 
>>> When using either Speakers, Headphones or both all actions are normal and 
>>> as described in the manual.  It is only when you monitor the USB output 
>>> toward the attached computer (Mac or Windows) that you become aware of this 
>>> loopback path.
>>> 
>>> I believe it is a BUG but if it is a feature I would appreciate knowing 
>>> where it would be beneficial.
>>> 
>>> 
>>> Very73 - Mike - K9JRI
>>> 
>>> 
>>> 
>>> 
>>> 
>>> 
>>> __
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>> 
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[Elecraft] KX2 echo in the speaker

[Irma & Linas(LY2H)]

Hello group,

I have a bizzair effect in my KX2. When I touch the chassis of the radio
 each  touch corresponds with the echo in the speaker. The radio is not
connected to the antenna, could run on the battery or the PS, the effect is
there. Touching also makes the Smeter bar move a bit.
Does anybody has/had the same issue and know the solution?

Thanks , Linas LY2H
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Re: [Elecraft] K3s Bug or Feature?

[Lyle Johnson]

The information is in the firmware real ease notes.

73,

Lyle

Sent from my iPhone

> On Feb 25, 2018, at 1:21 PM, Michael Blake  wrote:
> 
> Ken (K6MR) answered my question, it is a feature.  I still can not find this 
> in the K3s’s Owners Manual but Ken was 100% right.
> 
> Here is what he had to say
> 
> "It’s a feature.  It allows recording of the transmitted audio regardless of 
> the monitor level.  If you open Config -> Lin Out and tap 2, you’ll see 
> t=xxx.  This is the level of the output.  Setting to zero should solve your 
> problem.
> 
> Ken K6MR”
> 
> Thanks Ken!
> 
> 
> 
> 
> 
> 
> 
>> On Feb 25, 2018, at 11:53 AM, Michael Blake  wrote:
>> 
>> On my recently acquired K3s (MCU 05.62, FPF 01.26, DSP1 02.88, DSP2 N?A, DVR 
>> N/A), Serial number 11501,  I have notice a USB audio anomaly that I do not 
>> understand nor can I find described in the manual.
>> 
>> If you monitor the USB audio output port on the attached computer you will 
>> hear, or see on the audio display of a scope application, fldigi waterfall 
>> or monitor speaker any audio that is being used to modulate the transmitter. 
>>  The transmitter can even be in the TEST mode where no actual output occurs. 
>>  This “looped back” audio is unaffected by the MON function and does not 
>> vary in amplitude with MON set anywhere from 0 to maximum value.
>> 
>> It does not matter if the source of the audio is the FP mic, RP mic or Line 
>> In audio source.  The audio is looped back to the USB output port at a 
>> constant amplitude.
>> 
>> This occurs when the LIN OUT configuration option is set to NOR and at any 
>> amplitude. Only when the LIN OUT option is set to PHONES is the loopback 
>> path broken and the MON function performs as expected with the looped back 
>> level changing from OFF (MON = 0) to a varying level as the MON level is 
>> increased from 1 to 60.
>> 
>> When using either Speakers, Headphones or both all actions are normal and as 
>> described in the manual.  It is only when you monitor the USB output toward 
>> the attached computer (Mac or Windows) that you become aware of this 
>> loopback path.
>> 
>> I believe it is a BUG but if it is a feature I would appreciate knowing 
>> where it would be beneficial.
>> 
>> 
>> Very73 - Mike - K9JRI
>> 
>> 
>> 
>> 
>> 
>> 
>> __
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Re: [Elecraft] Want My K-2 Back

[James Walker]

Thanks Wayne. You and Eric are too kind. Sadly, the years have taken their toll 
on my ambitious youth. I’m less patient these days, and far from as steady of 
hand as I was then. Perhaps my efforts to reunite with my K2 are a last gasp to 
hold on to my memories of a 16 year old kid with a new novice license. Wow! 
That’s lot of baggage to heap on a lowly K2. Maybe fate will lead me to the 
radio. Anyway, I couldn’t build a new one now, even if you threw a KPA1500 into 
the deal. BUT, if I do find the radio, how about I bring it to Dayton and 
collect those signatures. The Dayton booth is where I bought my lost K-2.  And 
if experience is any guide, I’ll buy a KX2 while I’m there.

Thanks for being a friend to me and all of us Elecraft enthusiasts.

Jimmy, WA4ILO


> On Feb 25, 2018, at 2:32 PM, Wayne Burdick  wrote:
> 
> And if you decide to do that, Eric and I will autograph the inside top cover, 
> FWIW. That and $5 will get you a slice of pizza, at least in my neighborhood 
> :)
> 
> 73,
> Wayne
> N6KR
> 
> 
>> On Feb 25, 2018, at 11:14 AM,   wrote:
>> 
>> Why not just build a new one. Relive the great experience you had building 
>> the first one!
>> 
>> 73 Jeff kb2m
>> 
>> -Original Message- From: rich hurd WC3T
>> Sent: Sunday, February 25, 2018 1:53 PM
>> To: James Walker
>> Cc: Elecraft@mailman.qth.net
>> Subject: Re: [Elecraft] Want My K-2 Back
>> 
>> There are Elecraft affiliated groups on Facebook; did you think about
>> posting something there?   It might mean that you sign up for a Facebook
>> account but there is no requirement that you continue to use it.
>> 
>> I'm not a Facebook fan but I am trying to help with a constructive
>> suggestion.  Good luck on your quest.
>> 
>> On Sun, Feb 25, 2018 at 13:33 James Walker  wrote:
>> 
>>> This my second and last time posting this message. Please indulge me in
>>> one more effort.
>>> 
>>> All this recent 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 K2 to
>>> finance the purchase of the K-3. I now regret that decision.
>>> 
>>> 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
>>> __
>>> 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 r...@wc3t.us
>> 
>> -- 
>> ---
>> 72,
>> Rich Hurd / WC3T / DMR: 3142737
>> PA Army MARS, Northampton County RACES, EPA-ARRL Public Information Officer
>> for Scouting
>> Latitude: 40.761621 Longitude: -75.288988  (40°45.68' N 75°17.33' W) Grid:
>> *FN20is*
>> __
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Re: [Elecraft] Want My K-2 Back

[hawley, charles j jr]

I get it. I’ve told the story before, but again, I took 10 years to build my K2 
that I bought in ‘99. I started it, got delayed by an addition to the house and 
a move of the shack. I documented all the mods and readjusted the assembly 
instructions over 9 years so that when it was finished, it worked well, and 
didn’t require any resoldering. I’ve had a chance to sell it, but it’s family.
I can’t sell it.
I’ve thought about building a new one...it was a great experience!

Chuck
KE9UW 
c-haw...@illinois.edu

Sent from my iPad

> On Feb 25, 2018, at 1:14 PM, "kb2mj...@att.net"  wrote:
> 
> Why not just build a new one. Relive the great experience you had building 
> the first one!
> 
> 73 Jeff kb2m
> 
> -Original Message- From: rich hurd WC3T
> Sent: Sunday, February 25, 2018 1:53 PM
> To: James Walker
> Cc: Elecraft@mailman.qth.net
> Subject: Re: [Elecraft] Want My K-2 Back
> 
> There are Elecraft affiliated groups on Facebook; did you think about
> posting something there?   It might mean that you sign up for a Facebook
> account but there is no requirement that you continue to use it.
> 
> I'm not a Facebook fan but I am trying to help with a constructive
> suggestion.  Good luck on your quest.
> 
>> On Sun, Feb 25, 2018 at 13:33 James Walker  wrote:
>> 
>> This my second and last time posting this message. Please indulge me in
>> one more effort.
>> 
>> All this recent 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 K2 to
>> finance the purchase of the K-3. I now regret that decision.
>> 
>> 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
>> __
>> 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 r...@wc3t.us
> 
> -- 
> ---
> 72,
> Rich Hurd / WC3T / DMR: 3142737
> PA Army MARS, Northampton County RACES, EPA-ARRL Public Information Officer
> for Scouting
> Latitude: 40.761621 Longitude: -75.288988  (40°45.68' N 75°17.33' W) Grid:
> *FN20is*
> __
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> 
> ---
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> 
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Re: [Elecraft] Want My K-2 Back

[Frank Krozel]

Sending in my top cover!
Frank KG9H


> On Feb 25, 2018, at 1:42 PM,   wrote:
> 
> What a deal!
> 
> 73 Jeff kb2m
> 
> -Original Message- From: Wayne Burdick
> Sent: Sunday, February 25, 2018 2:32 PM
> To: kb2mj...@att.net
> Cc: rich hurd WC3T ; James Walker ; Elecraft Reflector
> Subject: Re: [Elecraft] Want My K-2 Back
> 
> And if you decide to do that, Eric and I will autograph the inside top cover, 
> FWIW. That and $5 will get you a slice of pizza, at least in my neighborhood 
> :)
> 
> 73,
> Wayne
> N6KR
> 
> 
>> On Feb 25, 2018, at 11:14 AM,   wrote:
>> 
>> Why not just build a new one. Relive the great experience you had building 
>> the first one!
>> 
>> 73 Jeff kb2m
>> 
>> -Original Message- From: rich hurd WC3T
>> Sent: Sunday, February 25, 2018 1:53 PM
>> To: James Walker
>> Cc: Elecraft@mailman.qth.net
>> Subject: Re: [Elecraft] Want My K-2 Back
>> 
>> There are Elecraft affiliated groups on Facebook; did you think about
>> posting something there?   It might mean that you sign up for a Facebook
>> account but there is no requirement that you continue to use it.
>> 
>> I'm not a Facebook fan but I am trying to help with a constructive
>> suggestion.  Good luck on your quest.
>> 
>> On Sun, Feb 25, 2018 at 13:33 James Walker  wrote:
>> 
>>> This my second and last time posting this message. Please indulge me in
>>> one more effort.
>>> 
>>> All this recent 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 K2 to
>>> finance the purchase of the K-3. I now regret that decision.
>>> 
>>> 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
>>> __
>>> 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 r...@wc3t.us
>> 
>> -- 
>> ---
>> 72,
>> Rich Hurd / WC3T / DMR: 3142737
>> PA Army MARS, Northampton County RACES, EPA-ARRL Public Information Officer
>> for Scouting
>> Latitude: 40.761621 Longitude: -75.288988  (40°45.68' N 75°17.33' W) Grid:
>> *FN20is*
>> __
>> Elecraft mailing list
>> Home: http://mailman.qth.net/mailman/listinfo/elecraft
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>> 
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>> Please help support this email list: http://www.qsl.net/donate.html
>> Message delivered to k...@arrl.net
>> 
>> ---
>> This email has been checked for viruses by AVG.
>> http://www.avg.com
>> 
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> 
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Re: [Elecraft] K3s Bug or Feature?

[Michael Blake]

Ken (K6MR) answered my question, it is a feature.  I still can not find this in 
the K3s’s Owners Manual but Ken was 100% right.

Here is what he had to say

"It’s a feature.  It allows recording of the transmitted audio regardless of 
the monitor level.  If you open Config -> Lin Out and tap 2, you’ll see t=xxx.  
This is the level of the output.  Setting to zero should solve your problem.
 
Ken K6MR”

Thanks Ken!







> On Feb 25, 2018, at 11:53 AM, Michael Blake  wrote:
> 
> On my recently acquired K3s (MCU 05.62, FPF 01.26, DSP1 02.88, DSP2 N?A, DVR 
> N/A), Serial number 11501,  I have notice a USB audio anomaly that I do not 
> understand nor can I find described in the manual.
> 
> If you monitor the USB audio output port on the attached computer you will 
> hear, or see on the audio display of a scope application, fldigi waterfall or 
> monitor speaker any audio that is being used to modulate the transmitter.  
> The transmitter can even be in the TEST mode where no actual output occurs.  
> This “looped back” audio is unaffected by the MON function and does not vary 
> in amplitude with MON set anywhere from 0 to maximum value.
> 
> It does not matter if the source of the audio is the FP mic, RP mic or Line 
> In audio source.  The audio is looped back to the USB output port at a 
> constant amplitude.
> 
> This occurs when the LIN OUT configuration option is set to NOR and at any 
> amplitude. Only when the LIN OUT option is set to PHONES is the loopback path 
> broken and the MON function performs as expected with the looped back level 
> changing from OFF (MON = 0) to a varying level as the MON level is increased 
> from 1 to 60.
> 
> When using either Speakers, Headphones or both all actions are normal and as 
> described in the manual.  It is only when you monitor the USB output toward 
> the attached computer (Mac or Windows) that you become aware of this loopback 
> path.
> 
> I believe it is a BUG but if it is a feature I would appreciate knowing where 
> it would be beneficial.
> 
> 
> Very73 - Mike - K9JRI
> 
> 
> 
> 
> 
> 
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[Elecraft] FS: KPA500 & KAT500 SOLD

[Ron Durie]

THESE UNITS HAVE BEEN SOLD.  I am thankful for the Elecraft Reflector.  73's


For sale:   KPA500 - S/N 0127   KAT500 - S/N 0227
Mint condition; One owner; Non-smoking; Wired 240v; With all upgrades;
Latest firmware; Cables; and Manuals. 
Picture on my QRZ site.  
Both units are boxed ready to ship.  
Selling both units together only.  
$2200 shipped USA.  


Ron Durie
WB4OOA
Elecraft K3s-Line IMD
704-843-3681

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Re: [Elecraft] Want My K-2 Back

[kb2mjeff]

What a deal!

73 Jeff kb2m

-Original Message- 
From: Wayne Burdick

Sent: Sunday, February 25, 2018 2:32 PM
To: kb2mj...@att.net
Cc: rich hurd WC3T ; James Walker ; Elecraft Reflector
Subject: Re: [Elecraft] Want My K-2 Back

And if you decide to do that, Eric and I will autograph the inside top 
cover, FWIW. That and $5 will get you a slice of pizza, at least in my 
neighborhood :)


73,
Wayne
N6KR



On Feb 25, 2018, at 11:14 AM,   wrote:

Why not just build a new one. Relive the great experience you had building 
the first one!


73 Jeff kb2m

-Original Message- From: rich hurd WC3T
Sent: Sunday, February 25, 2018 1:53 PM
To: James Walker
Cc: Elecraft@mailman.qth.net
Subject: Re: [Elecraft] Want My K-2 Back

There are Elecraft affiliated groups on Facebook; did you think about
posting something there?   It might mean that you sign up for a Facebook
account but there is no requirement that you continue to use it.

I'm not a Facebook fan but I am trying to help with a constructive
suggestion.  Good luck on your quest.

On Sun, Feb 25, 2018 at 13:33 James Walker  
wrote:



This my second and last time posting this message. Please indulge me in
one more effort.

All this recent 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 K2 to
finance the purchase of the K-3. I now regret that decision.

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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--
---
72,
Rich Hurd / WC3T / DMR: 3142737
PA Army MARS, Northampton County RACES, EPA-ARRL Public Information 
Officer

for Scouting
Latitude: 40.761621 Longitude: -75.288988  (40°45.68' N 75°17.33' W) Grid:
*FN20is*
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---
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Re: [Elecraft] Want My K-2 Back

[Wayne Burdick]

And if you decide to do that, Eric and I will autograph the inside top cover, 
FWIW. That and $5 will get you a slice of pizza, at least in my neighborhood :)

73,
Wayne
N6KR


> On Feb 25, 2018, at 11:14 AM,   wrote:
> 
> Why not just build a new one. Relive the great experience you had building 
> the first one!
> 
> 73 Jeff kb2m
> 
> -Original Message- From: rich hurd WC3T
> Sent: Sunday, February 25, 2018 1:53 PM
> To: James Walker
> Cc: Elecraft@mailman.qth.net
> Subject: Re: [Elecraft] Want My K-2 Back
> 
> There are Elecraft affiliated groups on Facebook; did you think about
> posting something there?   It might mean that you sign up for a Facebook
> account but there is no requirement that you continue to use it.
> 
> I'm not a Facebook fan but I am trying to help with a constructive
> suggestion.  Good luck on your quest.
> 
> On Sun, Feb 25, 2018 at 13:33 James Walker  wrote:
> 
>> This my second and last time posting this message. Please indulge me in
>> one more effort.
>> 
>> All this recent 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 K2 to
>> finance the purchase of the K-3. I now regret that decision.
>> 
>> 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
>> __
>> 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 r...@wc3t.us
> 
> -- 
> ---
> 72,
> Rich Hurd / WC3T / DMR: 3142737
> PA Army MARS, Northampton County RACES, EPA-ARRL Public Information Officer
> for Scouting
> Latitude: 40.761621 Longitude: -75.288988  (40°45.68' N 75°17.33' W) Grid:
> *FN20is*
> __
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> 
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> 
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Re: [Elecraft] Want My K-2 Back

[kb2mjeff]

Why not just build a new one. Relive the great experience you had building 
the first one!


73 Jeff kb2m

-Original Message- 
From: rich hurd WC3T

Sent: Sunday, February 25, 2018 1:53 PM
To: James Walker
Cc: Elecraft@mailman.qth.net
Subject: Re: [Elecraft] Want My K-2 Back

There are Elecraft affiliated groups on Facebook; did you think about
posting something there?   It might mean that you sign up for a Facebook
account but there is no requirement that you continue to use it.

I'm not a Facebook fan but I am trying to help with a constructive
suggestion.  Good luck on your quest.

On Sun, Feb 25, 2018 at 13:33 James Walker  wrote:


This my second and last time posting this message. Please indulge me in
one more effort.

All this recent 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 K2 to
finance the purchase of the K-3. I now regret that decision.

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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Rich Hurd / WC3T / DMR: 3142737
PA Army MARS, Northampton County RACES, EPA-ARRL Public Information Officer
for Scouting
Latitude: 40.761621 Longitude: -75.288988  (40°45.68' N 75°17.33' W) Grid:
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Re: [Elecraft] KPA1500

[Jim Brown]

What seems to be missing from this discussion is that, because the 
KPA1500 uses a switched-mode power supply, the combined weight of the RF 
deck and the power supply is about 37#, about half the weight of most 
other legal limit amplifiers with their power supply.  When I needed to 
move the power supplies for my Ten Tec Titan amps, I slid them from the 
shelf under my operating desk onto a rolling chair. I can't even lift, 
let alone carry, the 87As that are on my operating desk. I got help from 
a neighbor ham carrying them in. Perhaps that might be a solution for 
others.


73, Jim K9YC

On 2/25/2018 12:53 AM, G4GNX wrote:
What Bill wants is two SEPARATE boxes to be shipped to him, without an 
outer wrapper to combine them. He wants to be able to carry EACH box 
separately from his door to his shack, so that he doesn't strain his 
back. 



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Re: [Elecraft] Want My K-2 Back

[rich hurd WC3T]

There are Elecraft affiliated groups on Facebook; did you think about
posting something there?   It might mean that you sign up for a Facebook
account but there is no requirement that you continue to use it.

I'm not a Facebook fan but I am trying to help with a constructive
suggestion.  Good luck on your quest.

On Sun, Feb 25, 2018 at 13:33 James Walker  wrote:

> This my second and last time posting this message. Please indulge me in
> one more effort.
>
> All this recent 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 K2 to
> finance the purchase of the K-3. I now regret that decision.
>
> 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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---
72,
Rich Hurd / WC3T / DMR: 3142737
PA Army MARS, Northampton County RACES, EPA-ARRL Public Information Officer
for Scouting
Latitude: 40.761621 Longitude: -75.288988  (40°45.68' N 75°17.33' W) Grid:
*FN20is*
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Re: [Elecraft] KPA1500

[Mel Farrer via Elecraft]

Frankly, just get a neighbor.  I used one to get my 750 lb Bauer 707 broadcast 
transmitter into my basement with a handtruck
Mel, K6KBE

  From: RIchard Williams via Elecraft 
 To: Elecraft Reflector  
 Sent: Sunday, February 25, 2018 10:07 AM
 Subject: Re: [Elecraft] KPA1500
   
 For Pete's (or fill in your own noun) sake, I can't believe all the hubbub 
about moving a box from the front porch to the basement!!  Unless Bill is a 
hermit, how about asking another amateur radio operator in the area to help 
out; or a next door neighbor?   Unless I am living in a different world of 
amateur radio, I have never had a problem finding another "ham" to help me when 
needed; and I have helped out many other amateurs since I have been in the 
hobby since 1961.
My two cents worth.
Dick, K8ZTT
     
    On Sunday, February 25, 2018, 10:10:45 AM MST, Alan  wrote: 
 
 
 Or go to Walmart and buy a $30 hand truck.

Alan N1AL


On 02/25/2018 07:44 AM, Don Wilhelm wrote:
> No special arrangements should be necessary.
> When the large box is delivered, he can open it (without any need to 
> lift it), and remove the two boxes one at a time.
> 
> If he cannot easily remove the two boxes from the larger one because it 
> is a tight fit, it is easy to bend one flap down and roll the box over 
> that flap and over again so the box is sitting on its open end.  Then it 
> is easy to lift the outer box off with no struggle.
> The way the gear is packaged, it will survive that "rolling over" with 
> no harm at all.
> 
> I do that regularly at trade shows for the K3, and more recently the 
> KPA1500 because it is difficult to lift the units vertically out of the 
> box due to the tight fit and the resistance of the foam shipping 
> material to the sides of the box.  Much easier to roll it over and lift 
> off the box.
> 
> 73,
> Don W3FPR
> 
> On 2/25/2018 3:53 AM, G4GNX wrote:
> 
>>
>> What Bill wants is two SEPARATE boxes to be shipped to him, without an 
>> outer wrapper to combine them. He wants to be able to carry EACH box 
>> separately from his door to his shack, so that he doesn't strain his 
>> back.
>>
>> Perhaps special arrangements can be made for Bill? My other suggestion 
>> would be to have the package delivered to the front door, then remove 
>> each box individually and carry them separately indoors.
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Re: [Elecraft] PX3 & thumb drive... SD card works

[Stephen Shearer]

PX3 doesn't "seem" to have a size issue...  aka my 128M vs 16G thumb drive.
As I said I would, I tried an SD card (Class 10 and 16G) with a USB 
interface.
The SD card worked ("M" showed on the screen of the PX3) for both the 
USB2.0 and the USB3.0 interface device.
SO, something is different between the SD card with an USB interface and 
the USB "drive" even if both are FAT32 formatted...

See if "we" get any input from Elecraft as I also CC'd a PX3 developer.

73, steve WB3LGC


On 2/25/2018 10:10 AM, John Evans wrote:
One thing you might try is use Windows disk management in the 
administrative tools section of control to partition the large thumb 
drive with a first fat32 partition that is 2 or 4 GB - if your whole 
drive is fat32 you should just be able to shrink it down to a size 
that may work.  If it isn't fat32, delete the partition and create a 
smaller partition that is.  Then you can create a 2nd or more 
partitions after that one for NTFS or whatever.


I had an issue where a thumb drive was needed to upgrade firmware in 
an Agilent digital scope but we didn't have appropriate thumb drives, 
so I took a 1 TB USB spinning hard drive and partitioned with the 
first partition being a small fat32 partition with the firmware cab 
file and it worked great.


If you try this and it works, please let us know.

72 - john - n0hj

On 2/25/2018 7:19 AM, Stephen Shearer wrote:
Yes, not class 10 takes longer...  My thumb drives ARE formatted 
FAT32, I checked.  ...

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Re: [Elecraft] Want My K-2 Back

[Wayne Burdick]

Jimmy,

Thanks for your sentiments about the K2. If all else fails we can find you a 
new one :)

73,
Wayne
N6KR


> On Feb 25, 2018, at 10:33 AM, James Walker  wrote:
> 
> 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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[Elecraft] Want My K-2 Back

[James Walker]

This my second and last time posting this message. Please indulge me in one 
more effort.

All this recent 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 K2 to finance the purchase of 
the K-3. I now regret that decision.

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] KPA1500

[RIchard Williams via Elecraft]

 For Pete's (or fill in your own noun) sake, I can't believe all the hubbub 
about moving a box from the front porch to the basement!!  Unless Bill is a 
hermit, how about asking another amateur radio operator in the area to help 
out; or a next door neighbor?   Unless I am living in a different world of 
amateur radio, I have never had a problem finding another "ham" to help me when 
needed; and I have helped out many other amateurs since I have been in the 
hobby since 1961.
My two cents worth.
Dick, K8ZTT
     
On Sunday, February 25, 2018, 10:10:45 AM MST, Alan  wrote: 
 
 
 Or go to Walmart and buy a $30 hand truck.

Alan N1AL


On 02/25/2018 07:44 AM, Don Wilhelm wrote:
> No special arrangements should be necessary.
> When the large box is delivered, he can open it (without any need to 
> lift it), and remove the two boxes one at a time.
> 
> If he cannot easily remove the two boxes from the larger one because it 
> is a tight fit, it is easy to bend one flap down and roll the box over 
> that flap and over again so the box is sitting on its open end.  Then it 
> is easy to lift the outer box off with no struggle.
> The way the gear is packaged, it will survive that "rolling over" with 
> no harm at all.
> 
> I do that regularly at trade shows for the K3, and more recently the 
> KPA1500 because it is difficult to lift the units vertically out of the 
> box due to the tight fit and the resistance of the foam shipping 
> material to the sides of the box.  Much easier to roll it over and lift 
> off the box.
> 
> 73,
> Don W3FPR
> 
> On 2/25/2018 3:53 AM, G4GNX wrote:
> 
>>
>> What Bill wants is two SEPARATE boxes to be shipped to him, without an 
>> outer wrapper to combine them. He wants to be able to carry EACH box 
>> separately from his door to his shack, so that he doesn't strain his 
>> back.
>>
>> Perhaps special arrangements can be made for Bill? My other suggestion 
>> would be to have the package delivered to the front door, then remove 
>> each box individually and carry them separately indoors.
> __
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Re: [Elecraft] KPA1500

[Dave Hachadorian]

Signature is required on delivery, so you will have a strong 
delivery person facing you.  He or she will move it inside the 
front door for you, and then you can use Don Wilhelm's "invert 
the box technique."  That's what happened here.


Dave Hachadorian, K6LL
Yuma, AZ


-Original Message- 
From: marvwhee...@nwlink.com

Sent: Sunday, February 25, 2018 10:26 AM
To: 'Elecraft Reflector'
Subject: Re: [Elecraft] KPA1500

I would think that for the cost of shipping two packages he could 
find some young lad that would be glad to move the two boxes from 
a single carton and transport them to his ham shack. Sounds like 
he is over complicating the issue. I also have a bad back but try 
to be resourceful to get something accomplished.


Marv KG7V

-Original Message-
From: elecraft-boun...@mailman.qth.net 
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Alan

Sent: Sunday, February 25, 2018 9:10 AM
To: elecraft@mailman.qth.net
Subject: Re: [Elecraft] KPA1500

Or go to Walmart and buy a $30 hand truck.

Alan N1AL


On 02/25/2018 07:44 AM, Don Wilhelm wrote:

No special arrangements should be necessary.
When the large box is delivered, he can open it (without any 
need to

lift it), and remove the two boxes one at a time.

If he cannot easily remove the two boxes from the larger one 
because
it is a tight fit, it is easy to bend one flap down and roll 
the box
over that flap and over again so the box is sitting on its open 
end.

Then it is easy to lift the outer box off with no struggle.
The way the gear is packaged, it will survive that "rolling 
over" with

no harm at all.

I do that regularly at trade shows for the K3, and more 
recently the
KPA1500 because it is difficult to lift the units vertically 
out of
the box due to the tight fit and the resistance of the foam 
shipping
material to the sides of the box.  Much easier to roll it over 
and

lift off the box.

73,
Don W3FPR

On 2/25/2018 3:53 AM, G4GNX wrote:



What Bill wants is two SEPARATE boxes to be shipped to him, 
without
an outer wrapper to combine them. He wants to be able to carry 
EACH
box separately from his door to his shack, so that he doesn't 
strain

his back.

Perhaps special arrangements can be made for Bill? My other
suggestion would be to have the package delivered to the front 
door,
then remove each box individually and carry them separately 
indoors.

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n...@sonic.net

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Re: [Elecraft] KPA1500

[marvwheeler]

I would think that for the cost of shipping two packages he could find some 
young lad that would be glad to move the two boxes from a single carton and 
transport them to his ham shack. Sounds like he is over complicating the issue. 
I also have a bad back but try to be resourceful to get something accomplished.

Marv KG7V

-Original Message-
From: elecraft-boun...@mailman.qth.net 
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Alan
Sent: Sunday, February 25, 2018 9:10 AM
To: elecraft@mailman.qth.net
Subject: Re: [Elecraft] KPA1500

Or go to Walmart and buy a $30 hand truck.

Alan N1AL


On 02/25/2018 07:44 AM, Don Wilhelm wrote:
> No special arrangements should be necessary.
> When the large box is delivered, he can open it (without any need to 
> lift it), and remove the two boxes one at a time.
> 
> If he cannot easily remove the two boxes from the larger one because 
> it is a tight fit, it is easy to bend one flap down and roll the box 
> over that flap and over again so the box is sitting on its open end.  
> Then it is easy to lift the outer box off with no struggle.
> The way the gear is packaged, it will survive that "rolling over" with 
> no harm at all.
> 
> I do that regularly at trade shows for the K3, and more recently the
> KPA1500 because it is difficult to lift the units vertically out of 
> the box due to the tight fit and the resistance of the foam shipping 
> material to the sides of the box.  Much easier to roll it over and 
> lift off the box.
> 
> 73,
> Don W3FPR
> 
> On 2/25/2018 3:53 AM, G4GNX wrote:
> 
>>
>> What Bill wants is two SEPARATE boxes to be shipped to him, without 
>> an outer wrapper to combine them. He wants to be able to carry EACH 
>> box separately from his door to his shack, so that he doesn't strain 
>> his back.
>>
>> Perhaps special arrangements can be made for Bill? My other 
>> suggestion would be to have the package delivered to the front door, 
>> then remove each box individually and carry them separately indoors.
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> list: http://www.qsl.net/donate.html Message delivered to 
> n...@sonic.net
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Re: [Elecraft] Odd effect on the K3 when displaying REF*CAL

[ANDY NEHAN via Elecraft]

Your right. When I used Xmit button and a foot switch for transmit and they 
worked just fine. So that means its HRD and the CAT control that is "causing" 
the problem. I have tried using both the K3 controls and the keypad macro and I 
get the same result with both.

I guess its a "feature" of HRD!

Andy
Original message
>From : mike.har...@horizon.co.fk
Date : 25/02/2018 - 12:00 (GMTST)
To : andy.ne...@btinternet.com
Subject : Re: [Elecraft] Odd effect on the K3 when displaying REF*CAL

Hi Andy,

My K3 is equipped to use an external 10MHz reference. The display of 
REF*CAL implies yours is similarly equipped otherwise the display would 
be REF CAL.

I have never thought to TX when in the Config menu and displaying the 
REF*CAL reading. However, I have now tried it, under both manual control 
using the XMIT button, foot switch PTT and CAT from my PC running 
Logger32 and in all cases it changes from RX to TX to RX as expected.

Feel free to let me know if I've misunderstood your query. Quite happy 
to conduct further tests.

Regards,

Mike VP8NO

On 24/02/2018 18:52, ANDY NEHAN via Elecraft wrote:
> I use HRD to control my rig on data modes and it does a good
> job and works as expected. However, if the K3 display is set to show the
> REF*CAL situation then after transmitting the rig stays in transmit mode, as 
> shown by the
> red TX button being lit. I have not noticed this when the K3 display shows
> other information such as the current being drawn.
> Is this to be expected??
> G4HUE Andy
> 

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Re: [Elecraft] KPA1500

[Alan]

Or go to Walmart and buy a $30 hand truck.

Alan N1AL


On 02/25/2018 07:44 AM, Don Wilhelm wrote:

No special arrangements should be necessary.
When the large box is delivered, he can open it (without any need to 
lift it), and remove the two boxes one at a time.


If he cannot easily remove the two boxes from the larger one because it 
is a tight fit, it is easy to bend one flap down and roll the box over 
that flap and over again so the box is sitting on its open end.  Then it 
is easy to lift the outer box off with no struggle.
The way the gear is packaged, it will survive that "rolling over" with 
no harm at all.


I do that regularly at trade shows for the K3, and more recently the 
KPA1500 because it is difficult to lift the units vertically out of the 
box due to the tight fit and the resistance of the foam shipping 
material to the sides of the box.  Much easier to roll it over and lift 
off the box.


73,
Don W3FPR

On 2/25/2018 3:53 AM, G4GNX wrote:



What Bill wants is two SEPARATE boxes to be shipped to him, without an 
outer wrapper to combine them. He wants to be able to carry EACH box 
separately from his door to his shack, so that he doesn't strain his 
back.


Perhaps special arrangements can be made for Bill? My other suggestion 
would be to have the package delivered to the front door, then remove 
each box individually and carry them separately indoors.

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[Elecraft] K3s Bug or Feature?

[Michael Blake]

On my recently acquired K3s (MCU 05.62, FPF 01.26, DSP1 02.88, DSP2 N?A, DVR 
N/A), Serial number 11501,  I have notice a USB audio anomaly that I do not 
understand nor can I find described in the manual.

If you monitor the USB audio output port on the attached computer you will 
hear, or see on the audio display of a scope application, fldigi waterfall or 
monitor speaker any audio that is being used to modulate the transmitter.  The 
transmitter can even be in the TEST mode where no actual output occurs.  This 
“looped back” audio is unaffected by the MON function and does not vary in 
amplitude with MON set anywhere from 0 to maximum value.

It does not matter if the source of the audio is the FP mic, RP mic or Line In 
audio source.  The audio is looped back to the USB output port at a constant 
amplitude.

This occurs when the LIN OUT configuration option is set to NOR and at any 
amplitude. Only when the LIN OUT option is set to PHONES is the loopback path 
broken and the MON function performs as expected with the looped back level 
changing from OFF (MON = 0) to a varying level as the MON level is increased 
from 1 to 60.

When using either Speakers, Headphones or both all actions are normal and as 
described in the manual.  It is only when you monitor the USB output toward the 
attached computer (Mac or Windows) that you become aware of this loopback path.

I believe it is a BUG but if it is a feature I would appreciate knowing where 
it would be beneficial.


Very73 - Mike - K9JRI






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[Elecraft] K144XV on digital modes - disappearing power

[Kjeld Holm]

Dear Elecrafters, 
For a year or so I have had an internal K144XV transverter for 144 MHz in my 
K3. I have not been using it very much – just a few FM QSOs. I have not seen 
any problems. 
Now I have just started using K144XV on digital modes – especially FT8 (42% TX 
and 58% RX). 
I started out selecting 10W output. After 4 minutes the output suddenly felt to 
a few mill watt. 
Starting out with 5W or even 2W produced exactly the same result. 
But without regard to the starting point I could get normal output again just 
by changing the output a little bit. It did not matter whether I increased or 
decreased my power a bit.  
I did not hear any fans starting up and I could not feel any heating at any 
sides of the K3. 
Can anyone explain what is going on – what I am doing wrong – what I can do to 
keep the output stable? 
Vy 73 de OZ1CCM, Kjeld

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Re: [Elecraft] K144XV on digital modes - disappearing power

[Gary Hembree]

This problem has nothing to do with setting the proper ALC level.  Both KB7Q 
and I have observed this behavior after carefully setting up our K3s for WSJT-X 
operation with the K144XV.  KB7Q found if he ran JT65 in USB mode the power 
setting behavior of the K144XV was normal but if he ran in DATA A mode it was 
anomalous.  I have had the exact same problem while running MSK144 in DATA A 
mode.  Both of us observed the same “cure” as Kjeld: slight movement of the 
power control restored normal power output.  Neither of us had this problem 
while running SSB or CW.  The two K3 transceivers we made these observations on 
were SN 7xx and SN 4611, which are widely spaced in date of production and 
board revision levels.  When KB7Q upgraded to a K3S, using the same K144XV 
module, the anomalous power setting behavior in DATA A mode did not occur.

I have a very strong suspicion that this problem is related to the new firmware 
that is shared by both the K3 and K3S.  It works correctly in the latter case 
but not the former.  Unfortunately I cannot revert to a pre-K3S firmware 
version.

73
Gary, N7IR




Kjeld,

Are you driving the audio up to 4 bars on the ALC meter with the 5th bar 
flashing?  This is the "zero ALC" point for the K3, KX3 and KX2 
transceivers.

Without sufficient audio  The K3 will "power hunt", and that may be what 
is happening.

Refer to the article on my website www.w3fpr.com.  Scroll the left 
column down to the lat article and click on that link.

73,
Don W3FPR

On 2/25/2018 5:28 AM, Kjeld Holm wrote:
Dear Elecrafters,
For a year or so I have had an internal K144XV transverter for 144 MHz in my
K3. I have not been using it very much - just a few FM QSOs. I have not seen
any problems.
Now I have just started using K144XV on digital modes - especially FT8 (42%
TX and 58% RX).
I started out selecting 10W output. After 4 minutes the output suddenly felt
to a few mill watt.
Starting out with 5W or even 2W produced exactly the same result. 
But without regard to the starting point I could get normal output again
just by changing the output a little bit. It did not matter whether I
increased or decreased my power a bit.  
I did not hear any fans starting up and I could not feel any heating at any
sides of the K3. 
Can anyone explain what is going on - what I am doing wrong - what I can do
to keep the output stable? 
Vy 73 de OZ1CCM, Kjeld
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Re: [Elecraft] KPA1500

[Don Wilhelm]

No special arrangements should be necessary.
When the large box is delivered, he can open it (without any need to 
lift it), and remove the two boxes one at a time.


If he cannot easily remove the two boxes from the larger one because it 
is a tight fit, it is easy to bend one flap down and roll the box over 
that flap and over again so the box is sitting on its open end.  Then it 
is easy to lift the outer box off with no struggle.
The way the gear is packaged, it will survive that "rolling over" with 
no harm at all.


I do that regularly at trade shows for the K3, and more recently the 
KPA1500 because it is difficult to lift the units vertically out of the 
box due to the tight fit and the resistance of the foam shipping 
material to the sides of the box.  Much easier to roll it over and lift 
off the box.


73,
Don W3FPR

On 2/25/2018 3:53 AM, G4GNX wrote:



What Bill wants is two SEPARATE boxes to be shipped to him, without an 
outer wrapper to combine them. He wants to be able to carry EACH box 
separately from his door to his shack, so that he doesn't strain his back.


Perhaps special arrangements can be made for Bill? My other suggestion 
would be to have the package delivered to the front door, then remove 
each box individually and carry them separately indoors.

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Re: [Elecraft] PX3 & thumb drive...

[John Evans]

One thing you might try is use Windows disk management in the 
administrative tools section of control to partition the large thumb 
drive with a first fat32 partition that is 2 or 4 GB - if your whole 
drive is fat32 you should just be able to shrink it down to a size that 
may work.  If it isn't fat32, delete the partition and create a smaller 
partition that is.  Then you can create a 2nd or more partitions after 
that one for NTFS or whatever.


I had an issue where a thumb drive was needed to upgrade firmware in an 
Agilent digital scope but we didn't have appropriate thumb drives, so I 
took a 1 TB USB spinning hard drive and partitioned with the first 
partition being a small fat32 partition with the firmware cab file and 
it worked great.


If you try this and it works, please let us know.

72 - john - n0hj

On 2/25/2018 7:19 AM, Stephen Shearer wrote:
Yes, not class 10 takes longer...  My thumb drives ARE formatted 
FAT32, I checked.  ...

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Re: [Elecraft] K3S Memories

[Tom-KQ5S]

Thanks to Dan, N3ND, the answer was in the help files for the program.  I
actually looked at the help files but missed this.

*"T**he VFO B frequency must be on the same band as the VFO A frequency. If
you send a memory to a transceiver with different bands in the two VFOs,
the VFO B frequency will be replaced by the VFO A frequency."*


-
73,
Tom - KQ5S

On Sun, Feb 25, 2018 at 8:03 AM, Tom-KQ5S  wrote:

> Perhaps I should have mentioned I have Config: VFO IND set to yes and I
> have the second receiver in the K3S.
>
> -
> 73,
> Tom - KQ5S
>
> On Sun, Feb 25, 2018 at 6:15 AM, Tom-KQ5S  wrote:
>
>> I am trying to use the Frequency Memory Editor to store some frequencies
>> in memories 01-09.  I set memory 01 VFO A to 3700 and VFO B to 7100.  When
>> I click on the QSY button the radio set VFO A to 3700 but does not set VFO
>> B to 7100.  It sets both VFOs to 3700.
>>
>> After sending the frequencies to the radio, when I use the M->V key and
>> rotate the dial to VFO 01 and hit M->V again I get the same results.
>>
>> I also tried entering the frequencies in memory using the radio buttons
>> and get the same results.
>>
>> Any ideas what I am doing wrong?
>>
>> -
>> 73,
>> Tom - KQ5S
>>
>
>
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Re: [Elecraft] KPA500 faulting on high VSWR on power rise

[Erik Basilier]

Hi Rick,

I distinguish between the radiator and the feed method, and therefore I would 
not say "the compromises add up to make it work".

To me, moving a dipole's feed from center to the end (or to somewhere in 
between) doesn't change its radiating characteristic as a dipole. Whether the 
feed method is free of loss, or free of diverting power off of the dipole are 
complicated questions better answered by serious testing of an individual 
design than by simple rules of thumb. I haven't recently looked into the "box" 
of my Cushcraft vertical, but it has been reported that there is a separate 
impedance transformer and a separate common mode choke. A very low swr is 
achieved without a tuner, at full legal power (within bandwidth limitations; 
people have blown up toroids when going outside bandwidth on 40m on the R7). 
There is obviously not a high level of power lost in the "box", or it would not 
survive full legal power. Thus this is not like some antennas that sacrifice 
efficiency by swamping in order to achieve low swr. Therefore most of any 
observed loss of performance can be attributed to the radiator and its en
 vironment, in combination with some rf going on the outside of the feedline 
(which is not completely prevented by the one CMC in the box). Some end-fed 
antennas use a non-resonant radiatior. This invariably results in swr high 
enough to require a tuner. Since the R5/R7 has low swr and not very high losses 
in the "box", the radiator obviously is resonant on all bands, presenting a 
non-reactive impedance at the end. That impedance must be very high since it is 
at the end. The very high non-reactive impedance makes it comparable to the end 
impedance of a resonant halfwave wire dipole even if the Cushcraft radiator is 
in other respects different. That is my basis for assuming that the Cushcraft 
"box" can be compared to what you would put at the end of a wire dipole when 
moving the feed from its center to one end.

An end-fed dipole can be resonant and present a very high but non-reactive 
impedance on multiple (higher) bands. This can allow a fixed, broad-band 
impedance transformer to provide low swr on multiple bands without a tuner. 
Yes, one has to be suspicious of possible losses in the transformer, and it 
takes a fight to stop rf from going onto the outside of the feedline. But since 
one avoids swr-caused losses in coax, and balun losses, and tuner losses with 
end-feed, I consider it an alternative worthy of serious consideration. If 
optimal protection against high voltages on the coax is a main goal, that just 
might tip the scale to make the end-fed dipole the winner.

73, 
Erik K7TV
 

-Original Message-
From: Rick WA6NHC [mailto:wa6...@gmail.com] 
Sent: Sunday, February 25, 2018 2:52 AM
To: Erik Basilier 
Cc: elecraft@mailman.qth.net
Subject: Re: [Elecraft] KPA500 faulting on high VSWR on power rise

Hi Erik,

I'll keep this short as the thread will likely be closed soon (or should).  
What I have up now is Field Day style, simple antennas (the inverted L for 
example, an 80M dipole, R7) shot into the trees so I could get on, pending the 
install of 'the real station', hi.  The water pipe (300+' in two directions, 
deep enough to never freeze) is the L counterpoise, for now.  It isn't ideal 
but it works and isn't meant for forever.

I will be installing a lightning protection and counterpoise system with lots 
of copper, ground rods etc, which will come to box (for feed line, rotor 
control) at the tower end of the conduit to the shack (AND tie into the house 
grounding per code).  The box will have hardline from the house, coax for the 
tower, matching network for the Inverted L and the surge and lightning devices 
on each feed (static or lightning stays OUTside).  I'll also put an AC power 
outlet at the base, for occasional power tool use and a wifi web cam (may as 
well, I have to power the electric winch motor).

I DX, I don't contest, so I don't need SO2R (other than the second rx for DX 
chasing on splits).  Should that someday change, I'm blessed with the space for 
a tower farm or I'll put the EDZ up (kind of a favorite, I worked a LOT of DX 
on that dipole).  With the KAT500 (or KPA1500), rapid QSY isn't an issue on the 
EDZ.

No slam was inferred or taken on the Cushcraft; only that the compromises add 
up to make it work, but not as well as a tuned dipole.

I'm not sure that an end fed wire antenna will work well on multiple bands 
without a fair amount of effort (remote tuner at least, absolutely a CMC to 
back that up).  The voltages at radical SWR (non-resonant
afterall) can be high.  Isolating the radiation to the wire is a major issue, 
that antenna tends to want the feedline (coax commonly) as the counterpoise, 
bringing RF into the shack (and why I went with the inverted L which partly 
warms the worms).

73,
Rick NHC




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Re: [Elecraft] PX3 & thumb drive...

[Stephen Shearer]

Yes, not class 10 takes longer...  My thumb drives ARE formatted FAT32, 
I checked.  My OLD drive that works is a USB2.0 the new drive is a 
USB3.0 speed disk.  YES - I read the manual before I started this topic. 
NOW, the class 10 comment in the manual... class 10 is marked on SD 
cards.  I am wondering IF the software developer is using an adapter 
with an SD card rather than an "thumb drive".


*I have SD/adapter(s) and I will give it a try.*  I just like having 
fewer parts to loose when portable...


The problem isn't the speed of the thumb drive (aka class 10) but that 
the USB 3.0 and larger USB 2.0 thumb drives DON'T get "seen" by the 
PX3/P3 - no "M" on the screen.


73, steve WB3LGC


What is a class 10 SD card?   BTW, my USB3.0 "Flash Drive" is 150 MB/s  
(read speed? up to...) and SD cards and USB thumb drives are not rated 
the same - different association.


Answered by The WikiAnswers^® Community
Currently, the SD Association recognizes two Speed Classes: "Speed 
Class" and "UHS Speed Class." Speed Class applies to SD, miniSD, 
microSD, SDHC, miniSDHC, microSDHC, SDXC and microSDXC cards. These are 
denoted by a class number within a C-shaped logo. The higher the class 
number, the faster the card. In order to bear the SD Speed Class logo, 
card manufacturers have to adhere to the minimum standards set out by 
the SD Association.
Class 2 is the slowest SD card speed. Class 2 has a write speed of about 
2 Mb/s and is suitable for standard definition video recording. Class 4 
and Class 6 have write speeds of about 4 Mb/s and 6 Mb/s, respectively, 
and can be used for HD video recording. These three classes of SD cards 
are designed to operate under the normal bus interface.
*Class 10 SD cards have write speeds of 10 Mb/s and up and are designed 
to operate under the high speed bus interface. *


**


On 2/24/2018 2:04 PM, Bill Johnson wrote:

VIC and all,

See page 29 of the manual...

"A USB Mass Storage Device (MSD), such as flash or thumb drive, can be used to save 
and restore PX3 configuration data, save and restore macros and save the screen display. 
The MSD must be formatted for FAT32 files. A faster (e.g. Class 10) MSD will capture a 
screen display in 10 seconds while others may require several times longer".

Note the Class 10 reference.  There are many that are not class 10.  You can 
format to FAT32 in your desktop or laptop.

73,
Bill
K9YEQ

-Original Message-
From: elecraft-boun...@mailman.qth.net  On 
Behalf Of Vic Rosenthal
Sent: Saturday, February 24, 2018 10:38 AM
To: Stephen Shearer 
Cc: ELECRAFT reflector 
Subject: Re: [Elecraft] PX3 & thumb drive...

I have the same problem with my P3.

Vic 4X6GP


On 24 Feb 2018, at 17:23, Stephen Shearer  wrote:

I have read, tried, and still can't use a "modern" thumb drive (USB)... with my 
PX3 for data transfer.

I have an OLD thumb drive that works in my PX3 firmware 1.48...
I have a Targus.com M-Sys DiskOnKey 128M formatted as FAT32 that
works. (yes, 128 mega...) I have a San Disk Ultra Fit FAT32 16G (and other SanDisk) that 
will not give me an "M"...

Is SanDisk the problem?  Why?  Help, is there something I am not doing?

73, steve WB3LGC


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Re: [Elecraft] K3S Memories

[Tom-KQ5S]

Perhaps I should have mentioned I have Config: VFO IND set to yes and I
have the second receiver in the K3S.

-
73,
Tom - KQ5S

On Sun, Feb 25, 2018 at 6:15 AM, Tom-KQ5S  wrote:

> I am trying to use the Frequency Memory Editor to store some frequencies
> in memories 01-09.  I set memory 01 VFO A to 3700 and VFO B to 7100.  When
> I click on the QSY button the radio set VFO A to 3700 but does not set VFO
> B to 7100.  It sets both VFOs to 3700.
>
> After sending the frequencies to the radio, when I use the M->V key and
> rotate the dial to VFO 01 and hit M->V again I get the same results.
>
> I also tried entering the frequencies in memory using the radio buttons
> and get the same results.
>
> Any ideas what I am doing wrong?
>
> -
> 73,
> Tom - KQ5S
>
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[Elecraft] K3S Memories

[Tom-KQ5S]

I am trying to use the Frequency Memory Editor to store some frequencies in
memories 01-09.  I set memory 01 VFO A to 3700 and VFO B to 7100.  When I
click on the QSY button the radio set VFO A to 3700 but does not set VFO B
to 7100.  It sets both VFOs to 3700.

After sending the frequencies to the radio, when I use the M->V key and
rotate the dial to VFO 01 and hit M->V again I get the same results.

I also tried entering the frequencies in memory using the radio buttons and
get the same results.

Any ideas what I am doing wrong?

-
73,
Tom - KQ5S
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Re: [Elecraft] K144XV on digital modes - disappearing power

[Don Wilhelm]

Kjeld,

Are you driving the audio up to 4 bars on the ALC meter with the 5th bar 
flashing?  This is the "zero ALC" point for the K3, KX3 and KX2 
transceivers.


Without sufficient audio  The K3 will "power hunt", and that may be what 
is happening.


Refer to the article on my website www.w3fpr.com.  Scroll the left 
column down to the lat article and click on that link.


73,
Don W3FPR

On 2/25/2018 5:28 AM, Kjeld Holm wrote:

Dear Elecrafters,
For a year or so I have had an internal K144XV transverter for 144 MHz in my
K3. I have not been using it very much - just a few FM QSOs. I have not seen
any problems.
Now I have just started using K144XV on digital modes - especially FT8 (42%
TX and 58% RX).
I started out selecting 10W output. After 4 minutes the output suddenly felt
to a few mill watt.

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Re: [Elecraft] K3 Configuration Listing?

[Don Wilhelm]

Eric,

What is referred to as "configuration file" does not exist in the K3, 
but is the file saved in the computer by K3 Utility.


Yes, K3 Utility polls the K3 for each data element that is stored.
If you want to "roll your own" version to save specific data, you can do 
that - look at the K3 Programmer's Reference (download from Elecraft) to 
see the commands needed to accomplish that feat.


The data is not a fixed K3 file, but depends on the individual K3.  For 
one thing, it contains your current menu settings and other information 
unique to you particular K3.


That is why it is strongly recommended that you save a configuration 
file after setting up your K3 for your preferences and each time 
significant changes are made.


73,
Don W3FPR

On 2/25/2018 12:17 AM, ericrosenberg...@gmail.com wrote:

Is it possible to poll the K3 for its configuration file.  I'd like to know
how each configurable item is set.


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Re: [Elecraft] KPA500 Faulting on high SWR on power rise

[Don Wilhelm]

Rick and all,

Whether that is true or not depends on the length of the radiator and 
feedline relative to the frequency.  Read my "Antennas" article on my 
website www.w3fpr.com.


There is good reason that the Elecraft BL2 is switchable between 1:1 and 
4:1.


73,
Don W3FPR

On 2/24/2018 10:53 PM, Rick Bates (WA6NHC) wrote:

In my case, the 4:1 was shown as correct by comparing to a 1:1 (for me).  I was 
able to find more usable bands with the 4:1 (meaning closer matches).

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[Elecraft] K144XV on digital modes - disappearing power

[Kjeld Holm]

Dear Elecrafters, 
For a year or so I have had an internal K144XV transverter for 144 MHz in my
K3. I have not been using it very much - just a few FM QSOs. I have not seen
any problems. 
Now I have just started using K144XV on digital modes - especially FT8 (42%
TX and 58% RX). 
I started out selecting 10W output. After 4 minutes the output suddenly felt
to a few mill watt. 
Starting out with 5W or even 2W produced exactly the same result. 
But without regard to the starting point I could get normal output again
just by changing the output a little bit. It did not matter whether I
increased or decreased my power a bit.  
I did not hear any fans starting up and I could not feel any heating at any
sides of the K3. 
Can anyone explain what is going on - what I am doing wrong - what I can do
to keep the output stable? 
Vy 73 de OZ1CCM, Kjeld


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Re: [Elecraft] KPA500 faulting on high VSWR on power rise

[Rick WA6NHC]

Hi Erik,

I'll keep this short as the thread will likely be closed soon (or 
should).  What I have up now is Field Day style, simple antennas (the 
inverted L for example, an 80M dipole, R7) shot into the trees so I 
could get on, pending the install of 'the real station', hi.  The water 
pipe (300+' in two directions, deep enough to never freeze) is the L 
counterpoise, for now.  It isn't ideal but it works and isn't meant for 
forever.


I will be installing a lightning protection and counterpoise system with 
lots of copper, ground rods etc, which will come to box (for feed line, 
rotor control) at the tower end of the conduit to the shack (AND tie 
into the house grounding per code).  The box will have hardline from the 
house, coax for the tower, matching network for the Inverted L and the 
surge and lightning devices on each feed (static or lightning stays 
OUTside).  I'll also put an AC power outlet at the base, for occasional 
power tool use and a wifi web cam (may as well, I have to power the 
electric winch motor).


I DX, I don't contest, so I don't need SO2R (other than the second rx 
for DX chasing on splits).  Should that someday change, I'm blessed with 
the space for a tower farm or I'll put the EDZ up (kind of a favorite, I 
worked a LOT of DX on that dipole).  With the KAT500 (or KPA1500), rapid 
QSY isn't an issue on the EDZ.


No slam was inferred or taken on the Cushcraft; only that the 
compromises add up to make it work, but not as well as a tuned dipole.


I'm not sure that an end fed wire antenna will work well on multiple 
bands without a fair amount of effort (remote tuner at least, absolutely 
a CMC to back that up).  The voltages at radical SWR (non-resonant 
afterall) can be high.  Isolating the radiation to the wire is a major 
issue, that antenna tends to want the feedline (coax commonly) as the 
counterpoise, bringing RF into the shack (and why I went with the 
inverted L which partly warms the worms).


73,
Rick NHC


On 2/24/2018 10:53 PM, Erik Basilier wrote:

Your antenna farm is a separate subject, as is mine, and in this thread I will just 
comment briefly on those subjects. I got interested in SO2R, but don't have space 
for two towers/beams. You may not be thinking about SO2R, but if you are, and if you 
too can't put up a second tower/beam, then you might want to think twice about using 
SteppIR. With a beam that can work multiple bands without retuning, I use a 
multiplexer that allows two transmitters to use the same beam as if I had two 
separate ones. (Minus the capability to point them in different directions!). If an 
end-fed wire antenna works well without tuner on multiple bands, it can also be used 
with a multiplexer to perform instantly on another band, without retuning. Not so 
with a simple center-fed dipole (but a fan or trapped dipole would be ok). My other 
comment is about your verticals fed against a pipe in the ground. When I was using 
inverted L's for 160 and 80, I first tried them against a single, 4" wide 
copper strap going part way around the house and tied to a few ground rods here and 
there. Then I tried it against two zigging wires used as elevated radials. This 
worked much much better. Like others have said so often and so well: If you are 
going to bury radials, it will take many of them.

73,
Erik K7TV





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Re: [Elecraft] KPA1500

[G4GNX]

Wayne.

This has been floating up and down for a couple of days and is still not 
answered fully.


What Bill wants is two SEPARATE boxes to be shipped to him, without an outer 
wrapper to combine them. He wants to be able to carry EACH box separately 
from his door to his shack, so that he doesn't strain his back.


Perhaps special arrangements can be made for Bill? My other suggestion would 
be to have the package delivered to the front door, then remove each box 
individually and carry them separately indoors.


73,

Alan. G4GNX

-Original Message- 
From: Wayne Burdick

Sent: Sunday, February 25, 2018 4:57 AM
To: hawley, charles j jr
Cc: elecraft@mailman.qth.net
Subject: Re: [Elecraft] KPA1500

Yes, they’re shipped in a single box, and Very well-packed. The big box 
contains two identical smaller boxes for the power supply and RF deck.


Individually, the units are lightweight so they’re  easy to move around.

Wayne

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