Re: [Elecraft] Investments

[GaryK9GS]

Yes, they have gift cards...https://elecraft.com/products/gift-card73,Gary K9GS
 Original message From: Phil Kane  Date: 
5/11/19  9:14 PM  (GMT-06:00) To: elecraft@mailman.qth.net Subject: Re: 
[Elecraft] Investments On 5/11/2019 5:48 PM, ksto...@ac0h.net wrote:> The 
quilting machine my wife bought when she took it up would buy 2 fully> loaded 
K3s "Contester/DXer" packages.> That's just the machine not the fabric or 
thread. Before she passed I had> gotten very well acquainted with the vagaries 
of quilting thread and fabric> retailers.I never have to worry about what to 
get my wife for a present - a giftcard to the local branch of a national-chain 
Art Supply House worksevery time.  No need to waste money on perishables like 
candy orflowers. :-)  Does Elecraft have gift cards?  :-)73 de K2ASP - Phil 
KaneElecraft K2/100   s/n 5402From a Clearing in the Silicon ForestBeaverton 
(Washington County) 
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Re: [Elecraft] Bluetooth Noise cancelling headphones

[GaryK9GS]

Hello Dave,Do you have a link for what you purchased?73,Gary K9GS
 Original message From: Dave Sublette  
Date: 11/19/18  7:46 PM  (GMT-06:00) To: Elecraft Discussion List 
Subject: [Elecraft] Bluetooth Noise cancelling 
headphones Good evening,A few days ago I posted a question about using 
Bluetooth headsets and thelatency problem.  I got no answers, so I just took 
the bull by the hornsand ordered something.Today I received the Avantree 
Audikast aptX low latency transmitter and theAvantree ANC031 Active Noise 
Canceling Headset.After three hours charging the headset, per the instructions, 
I hooked itall to the headphone output of my KX3.It works!  There is no 
detectable latency.  I can send and receive Morsewithout stuttering.  I can't 
hear any latency at all.I walked the entire length of the house, about thirty 
feet in eachdirection with walls, etc.  I can hear the receiver just fine.  One 
end ofthe path is in the garage where my workshop is.  That gives the 
possibilityof listening to a fixed or scanned set of frequencies while I am 
working onsomething else.In short, it appears to be just what I wanted.  Now I 
won't try to break myneck or drag all the radios off the table when I jump up 
to go get anotherPepsi out of the fridge.  :-)No connection to selling these 
products here.  Just reporting the resultsto to this point.I may report again 
after I have used it awhile.  The battery charge isadvertised for 40 hours.  
I'm sure I will put that to the test.73,Dave, 
K4TO__Elecraft 
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Re: [Elecraft] Data transmission on 30 meters with PX3 problem

[GaryK9GS]

Hi Gwen,
Still sounds like RF getting in somewhere.  That kind of antenna is guaranteed 
to bring common mode current into the shack.
If you have a dummy load I would connect it directly to the output of the radio 
and see if the problem still occurs.


73,
Gary K9GS
 Original message From: Gwen Patton  Date: 
9/1/18  10:00 PM  (GMT-06:00) To: elecraft@mailman.qth.net Subject: [Elecraft] 
Data transmission on 30 meters with PX3 problem 
This happens very rarely for me EXCEPT for 30 meters. Then it happens so
much, it makes data modes (CW, RTTY, PSK) useless. I'm using a wired USB
keyboard connected to the PX3. If I'm on 30 meters, and I use the ATU to
match the antenna, transmitting any data mode causes extra, spurious
characters to be added onto the end of the keyboard input buffer. In some
circumstances, it starts appending additional messages stored in message
slots mapped to function keys.

Usually it's just a few characters -- a couple of numbers, a few alphas --
that get transmitted at the end of my transmission. In less frequent cases,
the transmission doesn't stop, as new characters are being shoved into the
keyboard buffer faster than they can be transmitted. Pressing backspace to
erase these characters works very seldom, though it can help, marginally.
In very rare cases, it seems scan codes for function keys are getting
shoved into the keyboard buffer, which appends those message slot contents
to the end. I usually wind up hitting ESC to stop the transmission, because
it's running wild.

RF power isn't a determinant. I can run power down to less than a watt and
it still happens. I tried wrapping a big ferrite toroid (T200-2) with the
keyboard cable just before the PX3 keyboard port, but it doesn't appear to
help.

I've searched for solutions online and in both the PX3 and KX3 manuals. The
antenna is a half-length "W3EDP Jr."  end-fed antenna with an LDG RU-4:1
unun, run from my front porch to a tree, about 15' up at the porch end, and
about 25' up at the far end.

This is the antenna I'm using:
https://thewakesileave.wordpress.com/2016/08/15/a-42-portable-multiband-hf-antenna-with-no-wire-on-the-ground-the-w3edp-jr/

Has anyone else had this problem, or can you suggest something I might set
differently in a menu option? I've gone through about everything I can
think of, including changing the position of the coax, the aforementioned
choke on the keyboard cable, et. al., but can't figure out what's causing
this. It acts like RF getting into the keyboard. I'll try a different
keyboard while I wait for any suggestions, but other than that, I'm stuck.
Being a member of 30MDG, I'd sort of like to be able to operate on 30!

73,
Gwen NG3P

-- 

-+-+-+-+-
Jenny Everywhere's Infinite: Quark Time
http://quarktime.net
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Re: [Elecraft] Working KH1

[GaryK9GS]

Yes..like raw meat to a starving wolf.


73,
Gary K9GS
 Original message From: Mike Flowers  
Date: 7/3/18  3:44 PM  (GMT-06:00) To: Carl Yaffey  Cc: 
Elecraft Reflector  Subject: Re: [Elecraft] Working 
KH1 
Good job, Carl. 

They have great ops on the Baker Island team.  Once they get a piece of your 
callsign, they’ll usually get you in the log. 

-- Mike Flowers, K6MKF, NCDXC - "It's about DX!"

> On Jul 3, 2018, at 1:25 PM, Carl Yaffey  wrote:
> 
> I thought I’d never work Baker Island since I couldn’t hear them on any band. 
> Suddenly there they were on 14023. Very weak.
> Thanks to my good ol’ KS3, I could engage APF and hear them OK. Here’s how it 
> went:
> ME: K8NU
> KH1: K8?
> ME: K8NU
> KH1: K8?
> ME: K8NU K8NU
> KH1: WAIT WAIT WAIT K8?
> ME: K8NU K8NU
> KH1: K8NU 599
> ME: 73.
> 
> What an operator! He made everyone wait until he could copy me. Amazing.
> 
> 
> Carl Yaffey  K8NU
> Recording studio.
> cyaffeyno_s...@gmail.com 
> 614 268 6353, Columbus OH
> http://www.carl-yaffey.com
> http://www.grassahol.com
> http://www.bluesswing.com
> 
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Re: [Elecraft] W4OWL is Famous! Kinda.

[GaryK9GS]

Every Field Day needs rainbow Unicorns.   Good for hanging antennas.


73,
Gary K9GS
 Original message From: Kevin der Kinderen 
 Date: 6/20/18  6:05 PM  (GMT-06:00) To: Elecraft 
Reflector Reflector  Subject: [Elecraft] W4OWL is 
Famous! Kinda. 
Here's the story. It's an odd one. Hope you don't mind a little rambling.

The Barred Owl Radio Club W4OWL got together in Floyd, VA last year for a
great Field Day. All the rigs were Elecraft Kx3 running QRP battery and it
was an fantastic event for a small group of friends.

Not long after Field Day I came across a fellow that does watercolor
drawings for business. Out of the blue I asked him if I could send him some
pictures of our event and get his interpretation of it. He was all over it!
For months we went back and forth and, in the end, I not only got a
wonderful watercolor original and some prints for the rest of the team but
he added an additional drawing which actually seems a bit more
Elecraft-focused... so not so OT.

Now I just got an email from the artist. He sent me a link to a magazine,
something fairly obscure and not my style but who cares. The cool part is -
well look at the link and turn to page 8.

https://drive.google.com/file/d/1eckDYihssqMTqQKhpPr71PYeiZ0HWOZt/view?usp=sharing

That was the special bonus drawing he sent me.

Here's the actual watercolor commissioned for the event.

https://drive.google.com/file/d/1R1zt1PincjMYW7snRDQ7MGHWIp6djWYp/view?usp=sharing


I think I'm going to miss Field Day with the team this year but have to
say... last year was so full of memories (ups - being with friends, first
satellite contact for any of us; downs - My pug Ginger  (aka Suga Puga
passed away that weekend) it will always be remembered. I hope you enjoy
these pictures. I hope the links work.

73,
Kev K4VD
One of the W4OWL crew.
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Re: [Elecraft] K2 Build: Requesting Tips and Tricks

[GaryK9GS]

Well, if you're ever in SE Wisconsin I'd be happy to give you a tour.

73,
Gary K9GS
 Original message From: Fred Jensen  Date: 
6/15/18  7:12 PM  (GMT-06:00) To: elecraft@mailman.qth.net Subject: Re: 
[Elecraft] K2 Build: Requesting Tips and Tricks 
OK, cool!  I'd like to see it work.  While I have a lot of respect for 
design folk, and especially those who design the super easy websites to 
use where you find what you need, do it, leave, and your coffee is still 
hot, the Mech E's who can visualize in 3D with motion astound me.  I 
understand the multiple reels of feedstock.  It's the "remove the parts 
from the tape" part that I find hard, that tape was really sticky. [:-)

Every time I've asked my wife to tell me the colors on a resistor, even 
after I tell her, "They're all supposed to be preschool colors," I still 
get, "Well, sort of reddish-orange ... might be a little pink too."

73,

Fred ["Skip"] K6DGW
Sparks NV DM09dn
Washoe County

On 6/15/2018 4:43 PM, GaryK9GS wrote:
> Hi Fred,
> It's called a sequencer.  Individual reels of tape and reel axial parts are 
> loaded in the sequencer.  So there would be an entire reel of 10k resistors, 
> a separate reel of 100k, separate reel of diodes, etc.
> The sequencer then removes the parts from the tape and creates a new tape 
> with the parts in the proper order and count.  The sequencer my company used 
> to have would also measure the value of the part and reject it if it wasn't 
> in the tolerance window.
> I hope that all makes sense...
> Surface mount is oh so much easier.  We have 9 surface mount lines and rarely 
> use the axial through hole inserter these days.
>

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Re: [Elecraft] K2 Build: Requesting Tips and Tricks

[GaryK9GS]

Hi Fred,
It's called a sequencer.  Individual reels of tape and reel axial parts are 
loaded in the sequencer.  So there would be an entire reel of 10k resistors, a 
separate reel of 100k, separate reel of diodes, etc.
The sequencer then removes the parts from the tape and creates a new tape with 
the parts in the proper order and count.  The sequencer my company used to have 
would also measure the value of the part and reject it if it wasn't in the 
tolerance window.
I hope that all makes sense...
Surface mount is oh so much easier.  We have 9 surface mount lines and rarely 
use the axial through hole inserter these days.


73,
Gary K9GS
 Original message From: Fred Jensen  Date: 
6/15/18  6:33 PM  (GMT-06:00) To: elecraft@mailman.qth.net Subject: Re: 
[Elecraft] K2 Build: Requesting Tips and Tricks 
Its been 15 years or so [K2 S/N 4398] but my resistors were taped in the 
order of insertion.  If yours are, don't remove them before needed.  I 
measured each of mine as I was about to insert it, and all were 
correct.  I can see the colors, I just can't name them so this was a 
huge gift from Elecraft. Benton Harbor just sent a bag, but of course 
auto-insertion equipment hadn't been invented then either. [:-)  I've 
always wondered how the machine that tapes them works.

73,

Fred ["Skip"] K6DGW
Sparks NV DM09dn
Washoe County

On 6/15/2018 4:03 PM, Brian Denley wrote:
> Scott:
> Get some magnification aid: binocular microscope, magnifying lamp, etc.  Some 
> of those parts are pretty small and solder joints need to be inspected.  Good 
> lighting is a must as well as an anti static mat.
>
> Brian
> KB1VBF
> Sent from my iPad
>
>> On Jun 15, 2018, at 2:14 PM, hawley, charles j jr  
>> wrote:
>>
>> I took about 10 years to build it. I started, then moved the ham shack to 
>> the new addition. I recorded every mod, change and alternate part over the 
>> 10 years and essentially wrote a new updated assembly manual. Bought all the 
>> add on options. Bought new firm ware that I never got to use and bought new 
>> again at the finish. Turned it on and guess what, no issues. Somehow I like 
>> the way it sounds, maybe better than the K3...
>>
>> Chuck
>> KE9UW
>>
>> Sent from my iPhone, cjack
>>
>>> On Jun 15, 2018, at 11:24 AM, Martin Sole  wrote:
>>>
>>> I built 7723 last year and it was an outstanding way to while away a good 
>>> few days in the desert.  Here's a couple of things that might help you 
>>> along:
>>>
>>> It's not one kit it's 3. Think of it like that and keep everything 
>>> separate. Even though you will do a minimal build on the RF board for test 
>>> purposes it's still 3 kits.
>>>
>>> It's not a one day build. Even if you spend every waking hour on it (you 
>>> wont!) it still takes a fair few days/weeks/months to get through.
>>>
>>> The book is right! Even when it's just plain wrong, it's right. Go back 
>>> read it again, ask on here. But that build book must have been worked over 
>>> almost 8000 times, it's right.
>>>
>>> I couldn't find any suitable trays to organise components but I bought a 
>>> set of small(ish) plastic pots with lids. Big enough to get my fingers in. 
>>> I had 12 I think which was more than enough, about 4 inches diameter and a 
>>> couple of inches deep. Keeping the lids on and marked with the contents 
>>> helped keep from them scattering from a careless movement or other accident.
>>>
>>> Keep everything as Elecraft intended. If it came in a separate little brown 
>>> envelope, inventory it then put it back in the envelope. Keep the resistors 
>>> on their tapes, they are in fitting order.
>>>
>>> Get a good quality pair of flush cutters and learn how to use them. It's 
>>> worthwhile perfecting the technique of close cutting the leads before 
>>> soldering, makes a nice board to handle afterwards and is very very very 
>>> necessary in the area of the main vfo encoder.
>>>
>>> Ask questions here, it's a fantastic resource.
>>>
>>> Last, but by no means least, enjoy! As the ads say, it's the most fun you 
>>> have with your clothes on. Though that might depend on how you do your kit 
>>> building :)
>>>
>>> 73
>>> Martin, HS0ZED
>>>
>>>
>>>
 On 15/06/2018 21:45, Scott wrote:
 I'll be starting a K2 build in the near future after the inventory is 
 complete.  A partial inventory is complete at this point.  I'm looking for 
 tips and tricks for a successful build.  Right now my biggest problem as I 
 see it, is how to organize all the caps and resistors to make the build go 
 smooth and relatively quick.  At any rate, all suggestions are welcome.

 Thanks in advance.

 Scott
 AD5HS
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Re: [Elecraft] Planning the next filters

[GaryK9GS]

Hi Chuck,
I agree with K9FN.  I have the 250 Hz filters and rarely use them.  The 400 Hz 
filters are great.  So good that I would not miss the 250s at all.
On SSB I also have the stock filters.  Here's how I handle crowded phone 
contests.  I set the width to 2.0, sometimes 1.8.  Then use the shift knob to 
clean up the signal.  It is amazing how that works and most of the time the 
desired signal pops right out of the QRM.
I contest and chase DX a lot, 90% CW and favor the low bands too.  I don't do 
digital modes but that would be the only other case where I'd consider a 
special bandwidth roofing filter.


73,
Gary K9GS
 Original message From: David Bunte  Date: 
3/8/18  10:45 AM  (GMT-06:00) To: Chuck Chandler  Cc: 
elecraft@mailman.qth.net Subject: Re: [Elecraft] Planning the next filters 
Chuck -

You will likely get a wide variety of responses, and here is mine. I added
the 400 Hz filter to my main and sub receiver. I work CW almost
exclusively. I rag chew and chase some DX. I barely “dabble” in contests. I
can’t recall a single time when I thought a narrower CW filter would have
made a difference for me. It may help that my antenna is quite modest, and
I don’t have other hames near enough to impede my reception.

Best of luck as you proce d.

Dave - K9FN

On Thu, Mar 8, 2018 at 11:24 AM Chuck Chandler 
wrote:

> Right now I have the stock SSB and a 400 Hz filter in both main and sub
> rcvrs.  I would like to add some a few at a time.  My first priority is to
> add a couple to the main receiver, since it is the biggest chore to get
> to.
>
> I plan on a 250 Hz CW filter, but am going back and forth between the 2.1
> and 1.8 kHz filters.  I know that narrowing the DSP to 1.8 gives a really
> difficult to understand voice signal, while the 2.1 allows in more adjacent
> signals.  However, the roofing filters may not behave in the same manner.
> For example, the 1.8 could be set to turn on at 2.1 to take advantage of
> skirt shape.
>
> I primarily DX, and operate in some contests as well.  I know SSB contests
> really need a narrow SSB filter.
>
> Any suggestions on the matter from those who have gone this route before?
>
> 73 de Chuck, WS1L
>
> --
>
>
> ===
> Chuck Chandler
> chandler...@gmail.com
> ===
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Re: [Elecraft] KPA500 Faulting on high SWR on power rise

[GaryK9GS]

I have never seen a properly installed UHF connector, in a matched system, arc.


73,
Gary K9GS
 Original message From: j...@kk9a.com Date: 2/24/18  5:14 PM  
(GMT-06:00) To: 'Elecraft Reflector'  Subject: 
[Elecraft]  KPA500 Faulting on high SWR on power rise 
I just posted almost the exact thing. I should have read all of the posts
first. 

It is interesting that coax has a much higher voltage rating than the
connectors however Amphenol UHF connectors rarely fail even after direct
lightning strikes.

John KK9A

K6WRU wrote:

The Amphenol voltage rating for UHF connectors is 500 V peak. So the
connectors could be another weak point.

https://www.amphenolrf.com/connectors/uhf.html

wunder
K6WRU
Walter Under

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

[GaryK9GS]

Hi Chris,
Unless there is something arcing, I would guess RF getting into something.  
Maybe the control cable to the auto tuner?  


73,
Gary K9GS
 Original message From: Chris Hallinan  
Date: 2/23/18  11:42 PM  (GMT-06:00) To: "" 
 Subject: [Elecraft] KPA500 Faulting on high SWR on 
power rise 
Greetings from southwest Florida.

My KPA500 is kicking out with REFL HI warning (high SWR).  But here is the
strangeness. My setup is K3->KPA500->40' coax->MFJ 600W remote tuner -> 4:1
balun -> open wire feedline to 80-meter doublet.  In words, I have a remote
autotuner feeding an 80-meter doublet fed with 600-ohm open wire line.  A
Balun Designs 4:1 balun provides the interface from the open wire line to
the tuner.

With the autotuner tuned at low power, the SWR shows 1.5:1 on my KPA500 and
external SWR meter.  As I run the power up to 300, 400, 500 watts,
somewhere in there all of a sudden the SWR instantly jumps off the scale,
into the red LEDs on KPA500, and it faults.  It's as if the SWR were
dependent on power.

Even stranger, when I back the power off to say 250 Watts, holding key down
the SWR is stable in the green (<1.5:1), but when I key it at CW rates, the
SWR bounces into the red on every dit and eventually faults, when at steady
state key down it never leaves the green zone!

I fear it is the tuner falling over, but it should be able to handle the
power.  I see this on all bands from 80-20.

Operating into my 20-meter resonant vertical, with no tuner, everything
works fine.

Any ideas or hints on how to correct this?

Thanks,

Chris
73 de K1AY


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Re: [Elecraft] OT: 3Y0Z Bouvet Island DXoedition

[garyk9gs]

The ship is not even half way to Bouvet.  The only activity by the group so far 
is 3G9A/MM from the ship.


73-Gary K9GS 
 Original message From: efortner  Date: 
1/23/18  4:09 PM  (GMT-06:00) To: 'ab2tc' , 
elecraft@mailman.qth.net Subject: Re: [Elecraft] OT: 3Y0Z Bouvet Island 
DXoedition 
It is spotted right now on the cluster. They are working cw on 20 and 40
meters and ft-8 on 14.074.
73 de Earl, K4KAY

-Original Message-
From: elecraft-boun...@mailman.qth.net
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of ab2tc
Sent: Tuesday, January 23, 2018 4:07 PM
To: elecraft@mailman.qth.net
Subject: [Elecraft] OT: 3Y0Z Bouvet Island DXoedition

Hi Elecraft community,

This is of course OT but relevant information to all K3 owners who are
chasing DX.

They are well underway on their ship closing in on South Georgia Island. You
can trace the ship's course here:

https://share.garmin.com/bouvet

It takes a while to update, but it will. I find it humorous that their
elevation reported appears to change randomly between 100' under water to
more than 100' above. Their main web site is quite impressive but not very
up to date and is not interactive, here:

http://www.bouvetdx.org/

All the action seems to be on Facebook. On their web site there is a link to
their Facebook group in the upper right corner. You can browse all the
content without having a Facebook account. There are a number of nice
videos, mostly from their ship's departure from Punta Arenas. The ship looks
super modern with a ultra modern and high tech bridge.

Again, I apologize to those who are annoyed by OT postings, but this is
after all the DX expedition of this century (likely the most costly in
history) and I have been surprised about how low profile it has had on the
Internet. They are qrv /MM (but their activity seems to mostly CW on 40m. I
have yet to see a spot on the cluster. BTW, Bouvet Island is a Norwegian
possession (undisputed as far as I know) and the crew has two veteran
members, Erling and Just.

AB2TC - Knut



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Re: [Elecraft] Special type of coax - need info

[garyk9gs]

Dual or Siamese coax


73-Gary K9GS 
 Original message From: Bill  Date: 1/16/18  
1:55 PM  (GMT-06:00) To: elecraft@mailman.qth.net Subject: [Elecraft] Special 
type of coax - need info 
30 years ago, when I was living in Fairfax County, VA, the TV cable was 
shipped around on a double coax cable. It resembled lamp cord or zip 
cord, and was two parallel coax lines with a webbing between them. I am 
in need of the proper name for that cable, so I can search some out.

I used it as feed for a full size lazy 80 meter loop - about the same as 
tuned feeders would be used. It worked very well on all bands - 
providing lots of DX and a ton of local coverage also. Not a tri-bander 
- but it beat the socks off other wires and verticals. I want to 
duplicate that antenna this spring.

Thanks,

Bill W2BLC K-Line

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Re: [Elecraft] Small set up for KX2 digi

[GaryK9GS]

Does the Syba only have a Mic level input or does it also have line level input?


73,
Gary K9GS
 Original message From: Walter Underwood 
 Date: 12/10/17  4:30 PM  (GMT-06:00) To: elecraft 
 Subject: Re: [Elecraft] Small set up for KX2 digi 
The $12 SYBA SD-AUD20101 is very good. 

https://smile.amazon.com/External-Adapter-Optical-Windows-SD-AUD20101/dp/B006SF68P2/



wunder
K6WRU
Walter Underwood
CM87wj
http://observer.wunderwood.org/ (my blog)

> On Dec 10, 2017, at 11:46 AM, Bill Frantz  wrote:
> 
> I have a very small sound interface, that I got from Amazon. It is about 
> 7/16" thick by 15/16" wide by 1 1/2" deep including the USB plug. The label 
> calls it a FG-UAU01A-1AB-BC21 and i remember it cost in the neighborhood of 
> $5. I have not used if for digital mode operations, but it is adequate for 
> computer conferencing. For use with line level signals, it will need a level 
> reduction pad.
> 
> 73 Bill AE6JV
> 
> On 12/10/17 at 11:29 AM, h...@lehigh.edu (Howard Sherer) wrote:
> 
>> I would like to take my KX2 along as a very compact JT65 & FT8 station. Are
>> there any suggestions for Ipad applications and any tiny sound card
>> interfaces?
> 
> ---
> Bill Frantz    | If you want total security, go to prison. There you're
> 408-356-8506   | fed, clothed, given medical care and so on. The only
> www.pwpconsult.com | thing lacking is freedom. - Dwight D. Eisenhower
> 
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Re: [Elecraft] test

[garyk9gs]

Dsvid..your posts are reaching the reflector just fine, all of them are now 
safely in all of the hundreds if not thousands of reflector subscribers' 
in-boxes.


73-Gary K9GS 
 Original message From: David Windisch  
Date: 10/5/17  3:38 PM  (GMT-06:00) To: elecraft@mailman.qth.net Subject: Re: 
[Elecraft] test 
reply works



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Re: [Elecraft] Bluetooth audio adapter for K3

[GaryK9GS]

I would like this info too.


73,
Gary K9GS
 Original message From: "Yngvi (TF3Y)"  Date: 
9/1/17  3:41 PM  (GMT-06:00) To: Elecraft@mailman.qth.net Subject: [Elecraft] 
Bluetooth audio adapter for K3 
Has anyone used a Bluetooth adapter for wireless headphones / headset with
the K3?

Any recommendations or suggestions?
What you stay away from?

73, Yngvi TF3Y
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Re: [Elecraft] OT Yamaha CM-500 ear pads

[GaryK9GS]

Bob, K4TAX, Isis probably right.  You could try getting a set of Koss SB40 pads 
but it's probably not worth the trouble.
https://www.koss.com/headphones/headsets/sb40


73,
Gary K9GS
 Original message From: Bob McGraw K4TAX  
Date: 7/30/17  10:24 PM  (GMT-06:00) To: elecraft@mailman.qth.net Subject: Re: 
[Elecraft] OT Yamaha CM-500 ear pads 
For the price of the headset...order a new 
one...trash the old one.    I'd expect cost of the ear pads plus 
shipping is ... 1/2 the cost of a new headset.

73

Bob, K4TAX


On 7/30/2017 10:18 PM, George Winship, NC5G wrote:
> Has anyone found a suitable replacement ear pad. Mine are worn out. Otherwise
> the headset is good and hate to discard it. Did not find anything in the
> archives.
>
> 73, George NC5G
>
>
>
> --
> View this message in context: 
> http://elecraft.365791.n2.nabble.com/OT-Yamaha-CM-500-ear-pads-tp7632896.html
> Sent from the Elecraft mailing list archive at Nabble.com.
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Re: [Elecraft] K3S (SDR/superhet hybrid) vs. entry-level direct-sampling radios

[GaryK9GS]

Thanks for sending Wayne.   To take this discussion a step further,  is the 
Flex series of radios in the same category as the 7300?


73,
Gary K9GS
 Original message From: Wayne Burdick  Date: 
7/30/17  11:14 AM  (GMT-06:00) To: Elecraft Reflector 
 Subject: [Elecraft] K3S (SDR/superhet hybrid) vs. 
entry-level
direct-sampling radios 
Hi all,

Over the past two days I’ve been deluged with requests for our K3S vs. IC7300 
comparison chart. This stems from a posting that mentioned the latter rig, and 
my subsequent offer to send out the chart, which we normally use for in-house 
training purposes.

What’s become clear from all the questions and comments is that there’s a need 
for clarification on receiver architecture. 

The K3S, an SDR/superhet hybrid, includes narrowband protection of its A-to-D 
converters in the form of roofing filters (crystal filters). This is 
fundamentally different from the approach taken by direct-sampling radios, 
which have only very broadband filtering ahead of their ADCs. Typically, 
front-end band-pass filters are 0.5 to 4 MHz wide. Their ADCs will be impacted 
by all strong signals in this range, alone and in summation.

When the ADC over-ranges in this “pure” SDR architecture, the radio usually 
reduces its gain automatically by either turning off preamps or adding 
attenuation. This increases the noise figure, often resulting in the loss of 
weak signals, both audibly and in the panadapter. Another word for it is 
“desense.” You might hear a pulsing sound as the noise floor goes up and down 
in response to a particular signal, or the sensitivity may degrade for many 
seconds at a time while the firmware waits for levels to drop at the input to 
the ADC.

Such over-ranging is almost unheard of in the K3S, for multiple reasons. First, 
we use very strong mixers and gain stages. Second, in many cases there’s no 
need to turn the preamp on at all. (Example: the K3S’s preamp-off sensitivity 
is typically -135 dB, while the preamp-off sensitivity on a typical 
direct-sampling SDR is -115 to -125 dB.) The third reason for the K3S’s 
strong-signal performance is its crystal roofing filters. These protect the ADC 
from not only wide-spaced signals, but also from signals very close by. As K3 
and K3S owners will attest, you can have a huge signal just a few hundred Hz 
away and not even know it’s there -- unless that station’s transmit phase noise 
is blanketing the band anyway. (There’s no defense against an unclean or clicky 
transmit signal.)

I’ve updated the referenced comparison chart to clarify this important 
difference. Our webmaster will put it up next week.

Meanwhile, I’ll continue to send it on request (email me directly). Feel free 
to share the information with anyone interested in the topic.

73,
Wayne
N6KR




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Re: [Elecraft] A VALUABLE FIELD DAY ACCESSORY

[garyk9gs]

All well and good..but FD is in 4 days.


73-Gary K9GS 
 Original message From: KENT TRIMBLE  Date: 
6/20/17  3:55 PM  (GMT-06:00) To: Elecraft  Subject: 
[Elecraft] A VALUABLE FIELD DAY ACCESSORY 
Headphones and Field Day have been yoked since time immemorial.  The 
K3's ability to output its audio into both headphones and speakers 
simultaneously has been a boon to those FD sites that encourage 
visitors.  It permits the operator/logger to use headphones while 
visitors can monitor the action through speakers.  The problem lies in 
the volume levels that each of the participants require (or don't 
require).  This is especially true when multiple transceivers are 
occupying the same tent/trailer/room, etc., and each have their own 
group of listeners.  Cacophony is not the goal here.

As veteran Field-Day clubs have discovered over the years, a valuable 
accessory is a multi-outlet headphone-amplifier with individual volume 
controls for each headphone.  For several years we have used a Behringer 
Amp800 
(https://www.amazon.com/Behringer-AMP800-Four-Channel-Headphone/dp/B000KU87SM) 
at our CW position.  Lately, we have also been using a Rolls HA43 
(http://www.rolls.com/product.php?pid=HA43) which is smaller and easier 
to operate.  Neither are bothered by stray RF.

I have no vested interest in either.  There are similar products under 
various brand-names.  The Behringer can be had for around $70 and the 
Rolls for $50 from numerous online vendors.  The Behringer only accepts 
1/4-inch phono plugs while the Rolls has dual input jacks to accept both 
1/4-inch phono and 1/8th-inch plugs.  This is another reason I like the 
Rolls as no "tweenies" (adapters) are needed.

Uses might include . . .

A neophyte with an unconnected laptop, wearing his own headphones, 
entering call signs/exchanges into a practice logging program without 
disturbing the main operator.  Or the next shift warming-up before 
assuming the operator's position.  Or someone merely wanting to 
seriously listen for a while without being bothered by the inevitable 
traipsing in-and-out of visitors, kibitzers, the lost, the lonely, the 
huddled masses yearning to be free.

Both of the above units accommodate up to four headphones.

73,

Kent Trimble, K9ZTV
Mid-MO Amateur Radio Club
Jefferson City, MO


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Re: [Elecraft] Packing Peanuts

[GaryK9GS]

Frankly I'm shocked that Elecraft used Styrofoam packing peanuts.   I work in 
electronics manufacturing and my company has banned them from our building well 
over a decade ago.  All of our vendors are required to not use them.  They are 
a killer for electronic components.
It is precisely the static charge that causes them to stick to everything.   
What do you think happens to that static charge that is present on your body 
after handling this packing material when you open a static bag containing 
static sensitive parts?  It has to go somewhere.


73,
Gary K9GS
 Original message From: "Ian Kahn, KM4IK"  
Date: 6/17/17  4:23 PM  (GMT-06:00) To: 'Kevin - K4VD' , 
'Elecraft Reflector'  Subject: Re: [Elecraft] Packing 
Peanuts 
On every Elecraft kit I've ever gotten, any static-sensitive parts are
packed in anti-static protective bags. Shouldn’t be an issue.

73 de,

--Ian
Ian Kahn, KM4IK
Roswell, GA  EM74ua
km4ik@gmail.com
10-10 #74624  North Georgia Chapter #2038
PODXS 070 #1962
K3 #281, P3 #688 KAT500 #860, KPA500 #1468

-Original Message-
From: elecraft-boun...@mailman.qth.net
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Kevin - K4VD
Sent: Saturday, June 17, 2017 5:17 PM
To: Elecraft Reflector 
Subject: Re: [Elecraft] Packing Peanuts

Does being packed in all those static-charged peanuts represent a danger to
electronic equipment like the K2?

Kev K4VD

On Sat, Jun 17, 2017 at 4:44 PM, Rose  wrote:

> Or hair spray ...
>
> 73
>
> Ken - K0PP
>
> On Jun 17, 2017 14:42, "Bob McGraw K4TAX"  wrote:
>
> > Just spray the inside of the trash container with Fabric Softener.  
> > As to the ones in the box, same thing.  Static gone.
> >
> > 73
> >
> > Bob, K4TAX
> >
> >
> > On 6/17/2017 3:20 PM, Dauer, Edward wrote:
> >
> >> Just received a K2 kit via UPS -- my third in fact -- and spent 20 
> >> comical minutes trying to empty out the styrofoam packing peanuts.
> >>
> >> They come, apparently, fully charged.  They cling to my fingers.  
> >> They cling to my shirt.  They cling to the outer shipping box.  
> >> After I get about ten handfuls into a small trash bag the common 
> >> charge results in
> the
> >> smaller pieces flying out again.  Back onto my fingers.  Grabbing 
> >> them
> with
> >> one hand while holding a cold water faucet with the other didn' t 
> >> help
> at
> >> all.
> >>
> >> Whenever I get a kit I feel as if I have to do the electrostatic 
> >> equivalent of a detox shower before I do the parts inventory.  
> >> Isn't
> there
> >> some good substitute for these accursed things?  Maybe like their
> ancestors
> >> -- real peanuts?  At least you can eat those while you're unpacking 
> >> the
> kit
> >> . . .
> >>
> >> Ted, KN1CBR
> >>
> >>
> >> Sent from my Verizon Wireless 4G LTE smartphone 
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> >>
> >>
> >
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Re: [Elecraft] Fool proof kill switch = deadman timer?

[GaryK9GS]

Hello Jim
Some friends of mine that have a rental condo in FL were having a problem with 
their Nest Wi-Fi  thermostat due to the frequent power glitches from FL 
thunderstorms.  I installed a small UPS on the router in their condo that 
solved the problem.
Maybe something to consider. 


73,
Gary K9GS
 Original message From: Jim Miller  Date: 
5/29/17  10:20 AM  (GMT-06:00) To: Elecraft Reflector 
 Subject: [Elecraft] Fool proof kill switch = deadman 
timer? 
In considering remote operation options I'm still struggling with how to
implement a kill switch that is foolproof.

Last night we had several power glitches that left our Comcast modem hung
up. There was really no service outage in the area so all it took was
unplugging and replugging the modem to restore it. Of course it took nearly
5 minutes to completely come alive with internet service active.

This happens often enough that it makes me concerned that if internet
service is interrupted while I'm operating remotely I wouldn't be able to
kill the transmitter output.

So I'm wondering if a better option is to have a deadman timer to kill the
K3 and amp output. Not sure what criteria I would use to reset the deadman.
I'm sure a Raspberry Pi or similar could be programmed to do the work.

Suggestions welcomed!

jim ab3cv
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Re: [Elecraft] KPA1500 Enhancement

[GaryK9GS]

This would be a  great feature


73,
Gary K9GS
 Original message From: Thomas Donohue  
Date: 4/26/17  8:07 AM  (GMT-06:00) To: Elecraft@mailman.qth.net Subject: 
[Elecraft] KPA1500 Enhancement 
Hi to all:

Wayne or Eric. Are there any plans or thoughts about adding a second RF input 
to the amp, similar to what the Yaesu VL-1000 has? 

Best 73,
Tom/W1QU


Sent from my iPad
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Re: [Elecraft] Additional KPA1500 amplifier information

[GaryK9GS]

Thank you Jim..I'll pass that on.


73,
Gary K9GS
 Original message From: Jim N7US  Date: 4/22/17  
11:44 AM  (GMT-06:00) To: 'Elecraft Reflector'  
Subject: Re: [Elecraft] Additional KPA1500 amplifier information 
The KPA500 does work on 30M and even 5 MHz.

With the per-band setting in the radio, turning on the KPA500 and placing it in 
OPERATE, the K3 automatically reduces its power to 12W (or whatever) so the 
KPA500 runs at 200W (or whatever).  Switching the amplifier off or to standby 
and the K3 automatically goes back to 110W or whatever.

I've never used it on 5 MHz.

73, Jim N7US

-Original Message-


I was chatting last night with a friend in Canada and we were discussing the 
new KPA1500.  He asked if the amp will work on 30m without modification.  Wayne?


73,
Gary K9GS


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Re: [Elecraft] Additional KPA1500 amplifier information

[GaryK9GS]

I was chatting last night with a friend in Canada and we were discussing the 
new KPA1500.  He asked if the amp will work on 30m without modification.  Wayne?


73,
Gary K9GS
 Original message From: Hisashi T Fujinaka  
Date: 4/22/17  10:36 AM  (GMT-06:00) To: Wayne Burdick  Cc: 
Elecraft Reflector  Subject: Re: [Elecraft] 
Additional KPA1500 amplifier information 
Please put me on the list. (K7EMI)

On Thu, 20 Apr 2017, Wayne Burdick wrote:

> Updated FAQ on the KPA1500:
>
>    http://www.elecraft.com/KPA1500/KPA1500%20FAQ%20rev%20A1b.pdf
>
> High-resolution front panel photo:
>
>    http://www.elecraft.com/KPA1500/KPA1500_cropped_hi.jpg
>
> High-resolution rear panel photo:
>
>    http://www.elecraft.com/KPA1500/KPA1500_back_rgb_hi.jpg
>
> KPA1500 web page:
>
>    http://www.elecraft.com/KPA1500/KPA1500.htm
>
> * * *
>
> Wayne
> N6KR
>
>
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> Message delivered to ht...@twofifty.com
>

-- 
Hisashi T Fujinaka - ht...@twofifty.com
BSEE + BSChem + BAEnglish + MSCS + $2.50 = coffee
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Re: [Elecraft] Linear thoughts

[garyk9gs]

At Orlando the introductory price for the Genius was $6999.00 and they were 
taking orders for. I think, June delivery.  They just received the FCC type 
acceptance a few days before.
I would assume that the SPE amps all integrate with the K3 in a similar 
fashion.  When I used the SPE 2K in CQWW CW it was like having a 1.5K K3..just 
hummed along all weekend. 




73-Gary K9GS 
 Original message From: j...@kk9a.com Date: 3/16/17  8:36 PM  
(GMT-06:00) To: elecraft@mailman.qth.net Subject: [Elecraft]  Linear thoughts 
I still have not seen the Genius pricing. I'm not sure what ever happened to
the Acom 1200S.  Many people use the SPE 1.3KW on expeditions, I wonder how
easy it is to hook it up to the K3S.  The KPA-500 works nicely with the K3S
but giving up 4.5dBs is considerable, a KPA-1000 would be hard to resist. 

John KK9A

From: Gary K9GS 
Thu Mar 16 19:19:38 EDT 2017

I think that the ship has sailed with respect to Elecraft bringing a 
legal limit SS amp to market.

There are a growing number of lightweight legal limit amps already on 
the market.  The FlexRadio Power Genius looks especially promising: 
http://www.flexradio.com/amateur-products/powergenius-xl/

It only weighs 33 pounds.  I saw it in operation at the Orlando 
HamCation and it looked very impressive operating all weekend into a 
dummy load at a conservative 1.5 kw output.

SPE also just announced a 1.5 kw amp..something I'm surprised they did 
given that they already have a 1 kw, 1.3 kw, and a 2kw amp on the 
market.  I know of several people that have the 1 kw amp and use it with 
their K3 radios and they love them.  I've used the big SPE amp in CQWW 
CW and it worked flawlessly all weekend without a hiccup.

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Re: [Elecraft] K3S USB issue with Dell OptiPlex 745 - Win 10

[garyk9gs]

This is an easy one.  The USB ports are going to sleep.  This can be fixed in 
device manager. 
Google "prevent USB ports from going to sleep".




73-Gary K9GS 
 Original message From: mtkos...@gmail.com Date: 3/5/17  2:33 
PM  (GMT-06:00) To: elecraft@mailman.qth.net Subject: [Elecraft] K3S USB issue 
with Dell OptiPlex 745 - Win 10 
Our club’s new K3S will not stay connected and often can not be found by our 
Dell Optiplex 745 w/Windows 10 (it’s an older computer – but seems to run all 
of our Ham programs and attached devices  without issue).   Reconnecting the 
USB cables sometimes fixes the issue.   Oddly, if we install & remove a USB 
mouse to the same USB port and then reconnect the K3S, the computer finds the 
K3S without issue.    Cycling the computer and radio does not address the 
problem.  

The K3S connects instantly  on newer Dell laptops and and Apple computers.

There seems to be a driver issue with the Dell Optiplex, but all drivers are 
current.  We are stumped.

Any suggestions?

Thanks,

Marty – N1VH



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Re: [Elecraft] Weller WTCPT soldering sta....?

[garyk9gs]

The problem with this model is the lack of a temperature control. 

I much prefer the Hakko brand. 


73,

Gary K9GS

div Original message /divdivFrom: Nr4c 
n...@widomaker.com /divdivDate:06/05/2014  12:16 PM  (GMT-06:00) 
/divdivTo: elecraft elecraft@mailman.qth.net /divdivSubject: 
[Elecraft] Weller WTCPT soldering sta? /divdiv
/divIs this a good gen purpose soldering station?  Good or bad?

Sent from my iPhone
...nr4c. bill

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Re: [Elecraft] Learning Morse Code [OT]

[garyk9gs]

Or..just get on the air and make some QSOs. 


73,

Gary K9GS

div Original message /divdivFrom: Josh Fiden 
j...@voodoolab.com /divdivDate:05/27/2014  4:12 PM  (GMT-06:00) 
/divdivTo: elecraft@mailman.qth.net /divdivSubject: Re: [Elecraft] 
Learning Morse Code [OT] /divdiv
/divFIVE BUCKS for an iPhone app??!

W1AW code practice transmissions as MP3 files. Incremental speeds from 5 
to 40 WPM. Play them on your iPhone. Free.

http://www.arrl.org/code-practice-files

73,
Josh W6XU

On 5/27/2014 11:22 AM, Oliver Johns wrote:
 For the iPhone, I strongly recommend the app Ham Morse, by AA9PW.

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