Re: [Elecraft] COM port problems

[Peter Dougherty (W2IRT)]

It's possible (and I'm guessing somehow likely), but darned if I know what
to even look for. These are things that were set when the computer was built
from scratch last year, they have worked 100% reliably over thousands of
QSOs in both Commander and N1MM+ ever since, and absolutely nothing was
changed in terms of configuration or even a Windows Update in at least two
weeks. I just needed to restart the computer after moving it from a wall
outlet to a UPS, and it started going crazy from that point on.

Whatever the issue is, it seems to affect ALL the COM ports in the system
the same; neither Commander nor N1MM can open the radio port, or either of
the two rotor ports.

I did somehow manage to get Commander working (don't aske me how, it just
started), but the rotors are still no-go (and not critical at the moment).

 

- pjd

 

From: George Thornton  
Sent: Wednesday, June 29, 2022 10:23 PM
To: Peter Dougherty (W2IRT) ; Elecraft@mailman.qth.net
Subject: RE: [Elecraft] COM port problems

 

It is possible the parameters set in the computer after reboot don't match
those set in the program.  Check the port and baud settings.  

 

Generally xom port settings need to match for communication to occur.

 

 

 

Sent from my Galaxy

 

 

 

 Original message 

From: "Peter Dougherty (W2IRT)" mailto:li...@w2irt.net> > 

Date: 6/29/22 6:59 PM (GMT-08:00) 

To: Elecraft@mailman.qth.net   

Subject: [Elecraft] COM port problems 

 

OK, got a massive problem that just cropped up this evening that is far
beyond my understanding that has completely killed my ability to use my K3
with my computer.

 

After restarting the PC, suddenly I cannot communicate with the radio using
DX Lab Suite or N1MM+ on the assigned COM port. I have downloaded the K3
Utility software and it is able to connect to the radio on COM5, its usual
port, and invoke macros via the Utility. So I know there's proper
communication between the radio and the PC. But once I close down the K3
Utility program I get the first major problem. The radio goes into transmit
for 10 seconds, releases for about 4 or 5 second, and goes back in to
transmit. Only powering the radio off and back on again stops this behavior.

The main issue is that no CAT control software seems to be able to connect
to the radio at all. The radio is on COM5, and has been for at least the
last 4 or 5 years, and until today it has just worked, even after building a
new computer last November. I just rebooted today and everything went to
heck.

The kicker is that's it's not a K3 hardware problem, and since it works with
neither N1MM nor DX Lab software any more it's apparently not those programs
either, and quite frankly I just don't know where to look next. Compounding
the issue, and likely related to it, the N1MM Rotor control cannot find
either COM port assigned to the rotors (COM1 and COM3). I have tried
removing the ports and re-adding them in Device Manager but the problem
still persists. I am absolutely prepared to pay a certified systems
professional to diagnose and fix this, but with ultra-specialized radio gear
I doubt they'd be able to figure it out either. Any suggestions? I'm
basically QRT until I can fix this.

 




Regards,
Peter Dougherty, W2IRT

DXCC Card Checker/CQ-WAZ Checkpoint

www.facebook.com/W2IRT  

 

__
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 gthorn...@thorntonmostullaw.com
  

__
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 arch...@mail-archive.com 

Re: [Elecraft] Ham Qualifications, Customer Service

[Jim Brown]

On 6/29/2022 2:35 PM, Wayne Burdick wrote:

  When you speak, the CMP shows you whether the mic gain is sufficient to fully 
hit the desired level.


Wayne,

I think we may be in the territory of the difference between a circuit 
designer and someone who understands how to use audio processing. What 
the CMP display SHOULD read is the amount of gain reduction taking 
place.  From your explanation, it isn't clear whether that's true or 
not. As a rule of thumb, 10-12 dB is a good place to be without 
intelligibility going south.


We all look forward to being able to safely return to Visalia. I've 
reserved a room for next year.  No surprise, reports are that 
Dayton/Xenia was a bit of a super-spreader.


73, Jim K9YC
__
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 arch...@mail-archive.com 

Re: [Elecraft] Ham Qualifications, Customer Service

[Ed Cole]

On 6/29/2022 9:39 AM, Ed Cole wrote:
> Note on SSB compression, I've run at 20 with no complaints of distortion
> or splatter.

Dial readout is the WRONG way to set compression -- it's meaningless.
The RIGHT way is to adjust COMP for a METER reading of 10 dB on voice
peaks.

73, Jim K9YC

OK tested with COMP meter and 25 gives 10-dB.  20 setting produced about 
2-dB.


Ed - KL7UW
__
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 arch...@mail-archive.com 

[Elecraft] Diversity RX with K3 + Sub RX

[dm4im]

Elecrafters,
i recently bought a used K3 with Sub RX and KAT3A internal ATU. I've 
enjoyed Diversity via SUB RX on my older K3, but never had the bells and 
whistles of the ATU.
So with -say- a vertical Antenna attached to Ant1 and a Dipole to Ant2, 
i can receive Diversity (if distance between them is sufficient) . Can i 
assign TX to Ant2 and still receive Diversity?  Is there a macro for that?


73, Martin


__
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 arch...@mail-archive.com 

Re: [Elecraft] COM port problems

[David Decoons]

Hi Peter,

I am pretty sure I know the answer. I was sleeping when you called earlier 
having been in Frantic City for a couple of days. 

I should be up by 8 a.m. tomorrow. Give me a call and I will walk you through 
checking some settings.

73
Dave wo2x

Sent from my iPad

> On Jun 29, 2022, at 10:25 PM, George Thornton 
>  wrote:
> 
> It is possible the parameters set in the computer after reboot don't match 
> those set in the program.  Check the port and baud settings.
> 
> Generally xom port settings need to match for communication to occur.
> 
> 
> 
> Sent from my Galaxy
> 
> 
> 
>  Original message 
> From: "Peter Dougherty (W2IRT)" 
> Date: 6/29/22 6:59 PM (GMT-08:00)
> To: Elecraft@mailman.qth.net
> Subject: [Elecraft] COM port problems
> 
> OK, got a massive problem that just cropped up this evening that is far
> beyond my understanding that has completely killed my ability to use my K3
> with my computer.
> 
> 
> 
> After restarting the PC, suddenly I cannot communicate with the radio using
> DX Lab Suite or N1MM+ on the assigned COM port. I have downloaded the K3
> Utility software and it is able to connect to the radio on COM5, its usual
> port, and invoke macros via the Utility. So I know there's proper
> communication between the radio and the PC. But once I close down the K3
> Utility program I get the first major problem. The radio goes into transmit
> for 10 seconds, releases for about 4 or 5 second, and goes back in to
> transmit. Only powering the radio off and back on again stops this behavior.
> 
> The main issue is that no CAT control software seems to be able to connect
> to the radio at all. The radio is on COM5, and has been for at least the
> last 4 or 5 years, and until today it has just worked, even after building a
> new computer last November. I just rebooted today and everything went to
> heck.
> 
> The kicker is that's it's not a K3 hardware problem, and since it works with
> neither N1MM nor DX Lab software any more it's apparently not those programs
> either, and quite frankly I just don't know where to look next. Compounding
> the issue, and likely related to it, the N1MM Rotor control cannot find
> either COM port assigned to the rotors (COM1 and COM3). I have tried
> removing the ports and re-adding them in Device Manager but the problem
> still persists. I am absolutely prepared to pay a certified systems
> professional to diagnose and fix this, but with ultra-specialized radio gear
> I doubt they'd be able to figure it out either. Any suggestions? I'm
> basically QRT until I can fix this.
> 
> 
> 
> 
> 
> 
> Regards,
> Peter Dougherty, W2IRT
> 
> DXCC Card Checker/CQ-WAZ Checkpoint
> 
> www.facebook.com/W2IRT
> 
> 
> 
> __
> 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 gthorn...@thorntonmostullaw.com
> __
> 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 rocke...@gmail.com 
__
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 arch...@mail-archive.com 

Re: [Elecraft] COM port problems

[George Thornton]

It is possible the parameters set in the computer after reboot don't match 
those set in the program.  Check the port and baud settings.

Generally xom port settings need to match for communication to occur.



Sent from my Galaxy



 Original message 
From: "Peter Dougherty (W2IRT)" 
Date: 6/29/22 6:59 PM (GMT-08:00)
To: Elecraft@mailman.qth.net
Subject: [Elecraft] COM port problems

OK, got a massive problem that just cropped up this evening that is far
beyond my understanding that has completely killed my ability to use my K3
with my computer.



After restarting the PC, suddenly I cannot communicate with the radio using
DX Lab Suite or N1MM+ on the assigned COM port. I have downloaded the K3
Utility software and it is able to connect to the radio on COM5, its usual
port, and invoke macros via the Utility. So I know there's proper
communication between the radio and the PC. But once I close down the K3
Utility program I get the first major problem. The radio goes into transmit
for 10 seconds, releases for about 4 or 5 second, and goes back in to
transmit. Only powering the radio off and back on again stops this behavior.

The main issue is that no CAT control software seems to be able to connect
to the radio at all. The radio is on COM5, and has been for at least the
last 4 or 5 years, and until today it has just worked, even after building a
new computer last November. I just rebooted today and everything went to
heck.

The kicker is that's it's not a K3 hardware problem, and since it works with
neither N1MM nor DX Lab software any more it's apparently not those programs
either, and quite frankly I just don't know where to look next. Compounding
the issue, and likely related to it, the N1MM Rotor control cannot find
either COM port assigned to the rotors (COM1 and COM3). I have tried
removing the ports and re-adding them in Device Manager but the problem
still persists. I am absolutely prepared to pay a certified systems
professional to diagnose and fix this, but with ultra-specialized radio gear
I doubt they'd be able to figure it out either. Any suggestions? I'm
basically QRT until I can fix this.






Regards,
Peter Dougherty, W2IRT

DXCC Card Checker/CQ-WAZ Checkpoint

www.facebook.com/W2IRT



__
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 gthorn...@thorntonmostullaw.com
__
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 arch...@mail-archive.com 

[Elecraft] COM port problems

[Peter Dougherty (W2IRT)]

OK, got a massive problem that just cropped up this evening that is far
beyond my understanding that has completely killed my ability to use my K3
with my computer.

 

After restarting the PC, suddenly I cannot communicate with the radio using
DX Lab Suite or N1MM+ on the assigned COM port. I have downloaded the K3
Utility software and it is able to connect to the radio on COM5, its usual
port, and invoke macros via the Utility. So I know there's proper
communication between the radio and the PC. But once I close down the K3
Utility program I get the first major problem. The radio goes into transmit
for 10 seconds, releases for about 4 or 5 second, and goes back in to
transmit. Only powering the radio off and back on again stops this behavior.

The main issue is that no CAT control software seems to be able to connect
to the radio at all. The radio is on COM5, and has been for at least the
last 4 or 5 years, and until today it has just worked, even after building a
new computer last November. I just rebooted today and everything went to
heck.

The kicker is that's it's not a K3 hardware problem, and since it works with
neither N1MM nor DX Lab software any more it's apparently not those programs
either, and quite frankly I just don't know where to look next. Compounding
the issue, and likely related to it, the N1MM Rotor control cannot find
either COM port assigned to the rotors (COM1 and COM3). I have tried
removing the ports and re-adding them in Device Manager but the problem
still persists. I am absolutely prepared to pay a certified systems
professional to diagnose and fix this, but with ultra-specialized radio gear
I doubt they'd be able to figure it out either. Any suggestions? I'm
basically QRT until I can fix this.

 




Regards,
Peter Dougherty, W2IRT

DXCC Card Checker/CQ-WAZ Checkpoint

www.facebook.com/W2IRT

 

__
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 arch...@mail-archive.com 

Re: [Elecraft] WTB: K4

[Dean L]

I knew you could do it!!!
I thought about doing the same thing, I'm afraid the K3 and the spares will
have to do, for now at least...
來 To the naysayers
73
Dean
K2WW

On Wed, Jun 29, 2022, 8:16 PM Alan D. Wilcox 
wrote:

> Mission accomplished ... I just unpacked and installed my new K4D
> beside the K2 and K3.
>
> Many thanks to all for the help and encouragement.
>
> Alan
>
> Alan D. Wilcox, W3DVX (K2-5373, K3-40, SKCC 22955)
> 570-916-9590 (cell, text)
>
> On 6/20/22 16:36, Alan D. Wilcox wrote:
> > Hello,
> >
> > Considering adding a K4 to my shack, but not keen on the Elecraft
> > expected-delivery time.
> >
> > Write or text me if you have one for me.
> >
> > Thanks,
> >
> > Alan
> >
> > Alan D. Wilcox, W3DVX (K2-5373, K3-40, SKCC 22955)
> > 570-916-9590 (cell, text)
> > https://WilcoxEngineering.com
> > http://www.eham.net/reviews/detail/6768 ... Elecraft Client Comments
> > http://amazon.com/author/alandwilcox
> > Williamsport, PA 17701
> >
> > __
> > 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 a...@wilcoxengineering.com
> __
> 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 dean.k...@gmail.com
>
__
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 arch...@mail-archive.com 

Re: [Elecraft] WTB: K4

[Alan D. Wilcox]

Mission accomplished ... I just unpacked and installed my new K4D
beside the K2 and K3.

Many thanks to all for the help and encouragement.

Alan

Alan D. Wilcox, W3DVX (K2-5373, K3-40, SKCC 22955)
570-916-9590 (cell, text)

On 6/20/22 16:36, Alan D. Wilcox wrote:

Hello,

Considering adding a K4 to my shack, but not keen on the Elecraft 
expected-delivery time.


Write or text me if you have one for me.

Thanks,

Alan

Alan D. Wilcox, W3DVX (K2-5373, K3-40, SKCC 22955)
570-916-9590 (cell, text)
https://WilcoxEngineering.com
http://www.eham.net/reviews/detail/6768 ... Elecraft Client Comments
http://amazon.com/author/alandwilcox
Williamsport, PA 17701

__
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 a...@wilcoxengineering.com 

__
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 arch...@mail-archive.com 

Re: [Elecraft] [OT] Note from a skeptic

[Al Lorona]

A couple of people have asked me for more detail.

The failure mode was interesting. The battery is, in fact, charged. The no-load 
terminal voltage is 13.5 V. However, as soon as you put a load on it -- even 
just 1 mA current draw... actually, even pressing your fingers onto the 
terminals to draw a few microamps-- the voltage starts dropping, eventually 
reaching zero at some current. Somewhere inside that pretty ABS case is a 
fully-charged LiFePO4 imprisoned by the very circuit that is supposed to keep 
it healthy and available. I think that's what makes this so tragic.

Al  W6LX/4


On Wednesday, June 29, 2022 at 04:22:38 PM EDT, Richard Hill 
 wrote: 





There is a good chance your battery came with, or should have, advice to
charge the battery every six months or less to keep it alive.

I know we hate to read instructions...but in this case it is an expensive
avoidance.

Had my education.

Nu6t

On Wed, Jun 29, 2022, 1:15 PM Drew AF2Z  wrote:

> Batteries have their place but in general I hate the things. Anyone who
> has had to maintain a battery systems does. Now I have them scattered
> all around the house in various states of charge or dying...
>
> Oh sure, they're great for one or two portable devices that you use
> frequently. But here I am again, back in the battery maintenance role
> and not even getting paid for it... Yeah, in general I hate batteries.
> Having a battery-based energy distribution system is just plain nuts.
>
> 73,
> Drew
> AF2Z
>
>
>
> On 06/29/22 14:57, Al Lorona wrote:
> > Late last week, I pulled my two-year-old LiFePO4 battery out for Field
> Day prep and found that it had failed. Efforts to reset the battery
> management system didn't succeed. I got to use this battery on exactly two
> Field Days, which means it cost me almost $200 per Field Day! Sad, very,
> very sad.
> >
> > The dealer is honoring the warranty and a new battery is on the way, but
> I've become a LiFePO4 skeptic. I don't care for battery management system
> electronics that can fail where I can't get to them: sealed up inside the
> battery case.
> >
> > If stuff like this starts happening to everybody's electric car... oh
> boy, look out!
> >
> >
> > Al  W6LX/4
> >
> >
> >
> > __
> > 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 pu...@af2z.net
> >
> __
> 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 nu6t.r...@gmail.com

__
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 alor...@sbcglobal.net 
__
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 arch...@mail-archive.com 

Re: [Elecraft] K2 sn 179 drop outs

[Geert Jan de Groot]

On 29/06/2022 17:29, elecraft-requ...@mailman.qth.net wrote:

I used my K2, s/n 179, at FD with great success with one problem. During tuning on 40 and 
20M the encoder would temporarily "drop out", causing the received signals to 
cut out.
I bought the radio at an estate sale last September with the intent to use it 
for FD. It was a Rev A so I put in the Rev B upgrades for whatever options were 
installed (not much if any). I also added the noise blanker. I had noticed the 
drop out when I used the radio on occasion but assumed it was due to lack of 
use.
Elecraft doesn't show an upgraded encoder assembly on their website. Is there 
one for such an old radio? I have an email in to the tech support there, as 
well as researching the reflector.


I am not aware of problems with the main K2 encoder, or with encoder 
problems causing audio to drop. Actually, I don't fully understand what 
you mean with "drop out" - does the radio suddenly change frequency, and 
if so, does that also happen if the main dial is locked?


If the encoder has an intermittent short then the frequency may jump but 
it should not cause an audio cut.


My first recommendation is to take apart the front panel and closely 
investigate the soldering between the main encoder and the frontpanel PCB.


There used to be a new encoder for the K2, see 
https://ftp.elecraft.com/K2/Manuals%20Downloads/E740177%20K2%20Encoder%20Installation%20Instructions,%20rev%20B.pdf 

THis encoder included a small PCB to make the new encoder behave like 
the old one. This used to be listed as K2 spare part but I don't see it 
listed anymore. Note that if you get a new encoder, you also get a 
different tuning know because the shaft diameter is different.


But, in all years I yet have to hear about "K2 main encoder doesn't work 
anymore". There have been issues with other encoders on newer radios but 
the main K2 one has been robust. You may want to check the soldering job 
done.


Geert Jan


__
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 arch...@mail-archive.com 

Re: [Elecraft] Ham Qualifications, Customer Service

[Wayne Burdick]

Hi Jim,

There's always room for improvement, and thanks for your observations. In 
general I defer to your audio expertise. 

Perhaps, as in the past, you and I can debate the finer points over a bottle of 
red at Visalia. Meanwhile, here's how it currently works:

- The CMP knob establishes an upper bound on the compression algorithm (0-30 
dB). 

- When you speak, the CMP shows you whether the mic gain is sufficient to fully 
hit the desired level. 

- Typically this happens when ALC is in the vicinity of 4 or 5 bars.

This is consistent with all of our transceivers, and as far as I know it has 
proven effective and easy to use. Just crank CMP to the desired level and shoot 
the fish in the barrel.

73,
Wayne
N6KR


> On Jun 29, 2022, at 1:10 PM, Jim Brown  wrote:
> 
> On 6/29/2022 9:39 AM, Ed Cole wrote:
>> Note on SSB compression, I've run at 20 with no complaints of distortion or 
>> splatter.
> 
> Dial readout is the WRONG way to set compression -- it's meaningless. The 
> RIGHT way is to adjust COMP for a METER reading of 10 dB on voice peaks.
> 
> 73, Jim K9YC



__
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 arch...@mail-archive.com 

Re: [Elecraft] [OT] Note from a skeptic

[Wayne Burdick]

Sorry to hear about your experience with LiFePO4 batteries, Al.

Fortunately we have not (to the best of my knowledge) had any such issues with 
the Li-ion battery pack we offer (11 V, 2.5 Ah). I have three KXBT2 packs that 
have been in more or less continuous use since 2015. They've been charged 
hundreds of times, and seem to have not lost significant capacity. We tested 
the heck out of these to make sure they were safe, too.

73,
Wayne
N6KR



> On Jun 29, 2022, at 12:57 PM, Al Lorona  wrote:
> 
> Late last week, I pulled my two-year-old LiFePO4 battery out for Field Day 
> prep and found that it had failed. Efforts to reset the battery management 
> system didn't succeed. I got to use this battery on exactly two Field Days, 
> which means it cost me almost $200 per Field Day! Sad, very, very sad.
> 
> The dealer is honoring the warranty and a new battery is on the way, but I've 
> become a LiFePO4 skeptic. I don't care for battery management system 
> electronics that can fail where I can't get to them: sealed up inside the 
> battery case. 
> 
> If stuff like this starts happening to everybody's electric car... oh boy, 
> look out!
> 
> 
> Al  W6LX/4
> 
> 
>  
> __
> 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 n...@elecraft.com

__
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 arch...@mail-archive.com 

Re: [Elecraft] Strong Signals FD

[Wilson Lamb via Elecraft]

Thanks, Wayne, I figured as much, clever, as usual! 
I think it was the SSB station, because the notice sppeared for only a second, 
if that. 
The surprising part is that tuning was disabled during the strong signal 
period. 
Our previous FDs (two clubs) have been QRP for years, so it couldn't happen. 
Our CW did very well,#2, but we wanted the SSB people to have more fun this 
time, which they did. 
We had 4xK3, 1xK3s, and one I never saw.   
I had digi hash from a nearby station.  Should have given them my updated 
(synth) unit, but forgot. 
Thanks, 
WL 
    

-Original Message-

From: Wayne 
To: Wilson 
Cc: Elecraft 
Date: Wednesday, 29 June 2022 7:27 PM GMT
Subject: Re: [Elecraft] Strong Signals FD

Hi Wilson, 

The K3 looks for "reverse power" coming back into the antenna jacks in receive 
mode. This is possible if there's a nearby transmitter, typically when the 
antennas are in each other's near field. On 40 m this could happen even at 
100'. 

If reverse power becomes excessive, the K3 will cut off RF input to the 
receiver for some period of time and display the Strong Signal message. When 
the reverse power condition disappears, operation returns to normal. 

The solution is to separate the antennas more or reduce power. 

73, 
Wayne 
N6KR 



> On Jun 29, 2022, at 10:25 AM, Wilson Lamb via Elecraft 
>  wrote: 
> 
> 
> There's always something new... 
> Our clubs went to 100W this year, after being leaders in QRP for some years, 
> up to #2. 
> We wanted new hams and the SSB crowd to have more fun. 
> I operated CW with one of my two K3, which worked fine, as usual. 
> But I experienced something never seen before. There was a 40m SSB station 
> not far from me, with a dipole about 45 degrees and 100 feet away. 
> I would occasionally get "Strong Signal" on my display, accompanied by very 
> brief interruptions to my anility to change frequency. I'd start turning the 
> knob and the VFO would take 200-500 mS (guess) to respond. 
> I also noticed the same thing re keying. Sometimes the first dit or dah would 
> be dropped when I started sending! 
> Is this normal, common? 
> It didn't cause a problem and there was no lingering effect. 
> WL 
> 
> __ 
> 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 n...@elecraft.com 

  
__
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 arch...@mail-archive.com 

[Elecraft] K3S Parts For Sale

[Doug Hensley]

The following parts are available on a first come first served basis.  No 
PAYPAL.
Payment by simple check or M.O. for immediate shipment.  No International Sales.

I have one each:

KBPF3A  Gen-Cov Bandpass Board:  $289.95   Board as new.  Shipping is $9.00 to 
lower 48.
If you want insurance you must request it.

KRX3A SUB-Receiver:  $795.00.   Sub-Rx as new, includes everything listed in 
the manual for
installation and comes with the 2.7 kc filter.  This unit was checked then 
removed
from a lightly used K3S by Elecraft service themselves.  I was charged over 
$300 for the
task not counting shipping.   This ships to buyer for $15; if you want 
insurance you must
request it.

KFL3A 8 pole roofing filters:  $175.00 each.
I will keep a list of filter buyers starting today.  But, first choice on these 
filters is reserved
for the buyer of the sub-receiver.  What is left over can then be sold to 
individuals.  If this
is not clear, feel free to email me.  Shipping for one or more is $8.95

The filters are:

13 kHZ. -  FM

2.8 kHZ  -  SSB Wide

2.1 kHZ  -  SSB Narrow

400 hZ   -  CW Wide

250 hZ. -  CW Narrow

Thank you,

Doug Hensley, W5JV








Visit https://www.qrz.com/db/W5JV for some great vacuum tube finds.


__
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 arch...@mail-archive.com 

Re: [Elecraft] [OT] Note from a skeptic

[Richard Hill]

There is a good chance your battery came with, or should have, advice to
charge the battery every six months or less to keep it alive.

I know we hate to read instructions...but in this case it is an expensive
avoidance.

Had my education.

Nu6t

On Wed, Jun 29, 2022, 1:15 PM Drew AF2Z  wrote:

> Batteries have their place but in general I hate the things. Anyone who
> has had to maintain a battery systems does. Now I have them scattered
> all around the house in various states of charge or dying...
>
> Oh sure, they're great for one or two portable devices that you use
> frequently. But here I am again, back in the battery maintenance role
> and not even getting paid for it... Yeah, in general I hate batteries.
> Having a battery-based energy distribution system is just plain nuts.
>
> 73,
> Drew
> AF2Z
>
>
>
> On 06/29/22 14:57, Al Lorona wrote:
> > Late last week, I pulled my two-year-old LiFePO4 battery out for Field
> Day prep and found that it had failed. Efforts to reset the battery
> management system didn't succeed. I got to use this battery on exactly two
> Field Days, which means it cost me almost $200 per Field Day! Sad, very,
> very sad.
> >
> > The dealer is honoring the warranty and a new battery is on the way, but
> I've become a LiFePO4 skeptic. I don't care for battery management system
> electronics that can fail where I can't get to them: sealed up inside the
> battery case.
> >
> > If stuff like this starts happening to everybody's electric car... oh
> boy, look out!
> >
> >
> > Al  W6LX/4
> >
> >
> >
> > __
> > 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 pu...@af2z.net
> >
> __
> 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 nu6t.r...@gmail.com
__
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 arch...@mail-archive.com 

Re: [Elecraft] [OT] Note from a skeptic

[Jim Brown]

On 6/29/2022 12:57 PM, Al Lorona wrote:

The dealer is honoring the warranty and a new battery is on the way, but I've 
become a LiFePO4 skeptic. I don't care for battery management system 
electronics that can fail where I can't get to them: sealed up inside the 
battery case.


I've been told that some battery assemblers provide only part of the 
required electronics to properly balance the multiple cells that make up 
the battery.


A 100 Ah Bioenne LiFePO4 battery has been running the two K3s on my 
operating desk for 6 years. It's floated from a repurposed Thinkpad PSU 
through a Genasun MPPT charge regulator.


73, Jim K9YC
__
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 arch...@mail-archive.com 

Re: [Elecraft] [OT] Note from a skeptic

[Drew AF2Z]

Batteries have their place but in general I hate the things. Anyone who 
has had to maintain a battery systems does. Now I have them scattered 
all around the house in various states of charge or dying...


Oh sure, they're great for one or two portable devices that you use 
frequently. But here I am again, back in the battery maintenance role 
and not even getting paid for it... Yeah, in general I hate batteries. 
Having a battery-based energy distribution system is just plain nuts.


73,
Drew
AF2Z



On 06/29/22 14:57, Al Lorona wrote:

Late last week, I pulled my two-year-old LiFePO4 battery out for Field Day prep 
and found that it had failed. Efforts to reset the battery management system 
didn't succeed. I got to use this battery on exactly two Field Days, which 
means it cost me almost $200 per Field Day! Sad, very, very sad.

The dealer is honoring the warranty and a new battery is on the way, but I've 
become a LiFePO4 skeptic. I don't care for battery management system 
electronics that can fail where I can't get to them: sealed up inside the 
battery case.

If stuff like this starts happening to everybody's electric car... oh boy, look 
out!


Al  W6LX/4


  
__

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 pu...@af2z.net


__
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 arch...@mail-archive.com 

Re: [Elecraft] Ham Qualifications, Customer Service

[Jim Brown]

On 6/29/2022 9:39 AM, Ed Cole wrote:
Note on SSB compression, I've run at 20 with no complaints of distortion 
or splatter.


Dial readout is the WRONG way to set compression -- it's meaningless. 
The RIGHT way is to adjust COMP for a METER reading of 10 dB on voice 
peaks.


73, Jim K9YC
__
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 arch...@mail-archive.com 

[Elecraft] [OT] Note from a skeptic

[Al Lorona]

Late last week, I pulled my two-year-old LiFePO4 battery out for Field Day prep 
and found that it had failed. Efforts to reset the battery management system 
didn't succeed. I got to use this battery on exactly two Field Days, which 
means it cost me almost $200 per Field Day! Sad, very, very sad.

The dealer is honoring the warranty and a new battery is on the way, but I've 
become a LiFePO4 skeptic. I don't care for battery management system 
electronics that can fail where I can't get to them: sealed up inside the 
battery case. 

If stuff like this starts happening to everybody's electric car... oh boy, look 
out!


Al  W6LX/4


 
__
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 arch...@mail-archive.com 

Re: [Elecraft] Strong Signals FD

[Wayne Burdick]

Hi Wilson,

The K3 looks for "reverse power" coming back into the antenna jacks in receive 
mode. This is possible if there's a nearby transmitter, typically when the 
antennas are in each other's near field. On 40 m this could happen even at 100'.

If reverse power becomes excessive, the K3 will cut off RF input to the 
receiver for some period of time and display the Strong Signal message. When 
the reverse power condition disappears, operation returns to normal.

The solution is to separate the antennas more or reduce power.

73,
Wayne
N6KR



> On Jun 29, 2022, at 10:25 AM, Wilson Lamb via Elecraft 
>  wrote:
> 
> 
> There's always something new... 
> Our clubs went to 100W  this year, after being leaders in QRP for some years, 
> up to #2. 
> We wanted new hams and the SSB crowd to have more fun. 
> I operated CW with one of my two K3, which worked fine, as usual. 
> But I experienced something never seen before.  There was a 40m SSB station 
> not far from me, with a dipole about 45 degrees and 100 feet away. 
> I would occasionally get "Strong Signal" on my display, accompanied by very 
> brief interruptions to my anility to change frequency.  I'd start turning the 
> knob and the VFO would take 200-500 mS (guess) to respond. 
> I also noticed the same thing re keying.  Sometimes the first dit or dah 
> would be dropped when I started sending! 
> Is this normal, common?   
> It didn't cause a problem and there was no lingering effect. 
> WL 
>  
> __
> 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 n...@elecraft.com

__
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 arch...@mail-archive.com 

Re: [Elecraft] Ham Qualifications, Customer Service

[Kent Trimble]

Burdick has too much on his mind to bother with dates, but actually it 
was late 2007 ...


From my logbook of that year:

Sun, Oct. 14:   Email from Elecraft saying they would be shipping this week
Thu, Oct. 18:   Email from Elecraft saying they would be shipping today
Fri, Oct. 19:   Serial Number 21 delivered by UPS at 9 a.m. CDT
Sat, Oct. 20:  Assembly of kit began at 10:15 a.m. and was completed on 
Sunday at 10:30 a.m. with time-outs for meals, sleep, participation in 
an emergency pandemic communications exercise, and continuous 
annotations and corrections to the assembly manual as I encountered them 
and as NØSS recorded them at the request of Elecraft.


Assembly went smoothly, filter calibration (manually) went well, and 
first contact was made at 5:02 p.m. that afternoon on the ECN (Elecraft 
20 meter Net).  Rare DX it was ... across town to NØSS who was NCS.


Fully updated, S.N. 21 has worked every Field Day since, demonstrated 
ham radio at numerous Boy Scout affairs, handled a bunch of special 
events, an ARRL 100th anniversary, a Missouri bicentennial, and 15 
Halloweens from Frankenstein.


73,
Kent
K9ZTV



On 6/29/2022 11:39 AM, Ed Cole wrote:
I bought my K3/10 in 2010 (SN 4340).  Didn't realize that was only two 
years after launch of the radio "We started selling the K3 in early 
2008-per Wayne".



__
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 arch...@mail-archive.com 

Re: [Elecraft] Ham Qualifications, Customer Service

[Ed K1EP]

I used my K3/100 in the 2007 CQWW SSB contest from J3A.

reply to: k...@arrl.net

On Wed, Jun 29, 2022, 12:40 Ed Cole  wrote:

> I bought my K3/10 in 2010 (SN 4340).  Didn't realize that was only two
> years after launch of the radio "We started selling the K3 in early
> 2008-per Wayne".
>
> radio has performed well over the last 12 years.  Only one failure of
> the KIO3A board which I opted to have Elecraft repair (two months in
> 2020; height of Covis issues).  I did upgrade my two synth boards and
> upgraded the general band filter to add 630m use.
>
> Recently, in light of comments about the KIO3 board, I ordered a KIO3B
> as backup spare (just in case as computer I/F is critical for my use of
> the K3 on digital modes - eme).
>
> Since I run in transverter mode most of the time, little actual usage of
> the 10w modules have transpired.  Now running 6m-eme at 3w still ought
> to be gentle on the transistors (I drive a MRF-1K50H LDMOS final amp).
>
> Surface-mount repair tasks one's abilities in eyesight and finger
> control (I did s-m repair for over twenty years, professionally and
> getting difficult as I age).  So I understand the comments about
> self-repair of much of today's electronics.
>
> When I was working in a commercial shop we had a rule about deciding
> repair or replace: if repair costs equal or exceeded 50% of replacement
> we would recommend replacement.  Then there were always the customer
> with 1950's stuff wanting repair with no hope of finding replacement
> parts (eg vibrator PS).
>
> Note on SSB compression, I've run at 20 with no complaints of distortion
> or splatter.  I do not do "combat contesting" or "aggressive DX", so
> that seems a good setting.  Audio drive also at 20 using Heil mic.
>
> Spending money on ham radio at advanced age is a difficult choice.  But
> I decided to renovate my 12x38 foot storage building into a ham
> shack/workshop this summer (looking like $15K with most work done by
> contractor).  But moving out of 11x12 spare bedroom will be nice
> (emptying the storage bldg is not).
>
> 73, Ed - KL7UW
> __
> 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 k1ep.l...@gmail.com
>
__
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 arch...@mail-archive.com 

[Elecraft] Fwd: 700Hz INRAD filter for sale

[Lou Laderman via Elecraft]

The filter has been spoken for.

73, Lou W0FK

Begin forwarded message:

From: Lou Laderman via Elecraft 
Date: June 29, 2022 at 10:55:24 AM CDT
To: elecraft@mailman.qth.net
Subject: [Elecraft] 700Hz INRAD filter for sale
Reply-To: Lou Laderman 

I have an ultra-rare INRAD 700Hz filter for the K3/K3S from the special run
in 2013. $160 shipped (US). If interested, please respond to me directly
(off the mailing list). 



73, Lou W0FK

__
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 llader...@icloud.com 
__
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 arch...@mail-archive.com 

[Elecraft] Strong Signals FD

[Wilson Lamb via Elecraft]

There's always something new... 
Our clubs went to 100W  this year, after being leaders in QRP for some years, 
up to #2. 
We wanted new hams and the SSB crowd to have more fun. 
I operated CW with one of my two K3, which worked fine, as usual. 
But I experienced something never seen before.  There was a 40m SSB station not 
far from me, with a dipole about 45 degrees and 100 feet away. 
I would occasionally get "Strong Signal" on my display, accompanied by very 
brief interruptions to my anility to change frequency.  I'd start turning the 
knob and the VFO would take 200-500 mS (guess) to respond. 
I also noticed the same thing re keying.  Sometimes the first dit or dah would 
be dropped when I started sending! 
Is this normal, common?   
It didn't cause a problem and there was no lingering effect. 
WL 
 
__
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 arch...@mail-archive.com 

Re: [Elecraft] Ham Qualifications, Customer Service

[Ed Cole]

I bought my K3/10 in 2010 (SN 4340).  Didn't realize that was only two 
years after launch of the radio "We started selling the K3 in early 
2008-per Wayne".


radio has performed well over the last 12 years.  Only one failure of 
the KIO3A board which I opted to have Elecraft repair (two months in 
2020; height of Covis issues).  I did upgrade my two synth boards and 
upgraded the general band filter to add 630m use.


Recently, in light of comments about the KIO3 board, I ordered a KIO3B 
as backup spare (just in case as computer I/F is critical for my use of 
the K3 on digital modes - eme).


Since I run in transverter mode most of the time, little actual usage of 
the 10w modules have transpired.  Now running 6m-eme at 3w still ought 
to be gentle on the transistors (I drive a MRF-1K50H LDMOS final amp).


Surface-mount repair tasks one's abilities in eyesight and finger 
control (I did s-m repair for over twenty years, professionally and 
getting difficult as I age).  So I understand the comments about 
self-repair of much of today's electronics.


When I was working in a commercial shop we had a rule about deciding 
repair or replace: if repair costs equal or exceeded 50% of replacement 
we would recommend replacement.  Then there were always the customer 
with 1950's stuff wanting repair with no hope of finding replacement 
parts (eg vibrator PS).


Note on SSB compression, I've run at 20 with no complaints of distortion 
or splatter.  I do not do "combat contesting" or "aggressive DX", so 
that seems a good setting.  Audio drive also at 20 using Heil mic.


Spending money on ham radio at advanced age is a difficult choice.  But 
I decided to renovate my 12x38 foot storage building into a ham 
shack/workshop this summer (looking like $15K with most work done by 
contractor).  But moving out of 11x12 spare bedroom will be nice 
(emptying the storage bldg is not).


73, Ed - KL7UW
__
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 arch...@mail-archive.com 

[Elecraft] K3 data mode not working on 6 meter band NQ3N

[Bob McGraw]

I used my K3S on 6M extensively on FT-8 over the Field Day weekend.   I 
used WSJT-X with the Radio Mode set for Fake IT .


For the radio I have DATA MD set to DATA A.  I think this is band 
specific.  There should be no difference in the set-up for 6M being the 
same for 160M - 10M.


73

Bob, K4TAX


On 6/29/2022 10:29 AM, elecraft-requ...@mailman.qth.net wrote:

Message: 4
Date: Mon, 27 Jun 2022 21:34:05 -0400
From: "Robert Ward"
To:
Subject: [Elecraft] K3 data mode not working on 6 meter band NQ3N
Message-ID: <000c01d88a8f$28e21050$7aa630f0$@com>
Content-Type: text/plain;   charset="us-ascii"

Hi

  


 My K3 will not display FT8 signals on 6 meters when set to
data mode. Data mode works on 10 thru 160 but not on 6 meters, FT8 decodes
fine when USB is selected.

Any suggestions would be appreciated!

Thanks, Bob   NQ3N


--
IF ONE EXPECTS COMPUTERS AND TECHNOLOGY TO SOLVE THEIR PROBLEMS,
ONE DOESN'T UNDERSTAND COMPUTERS AND TECHNOLOGY
AND ONE DOESN'T UNDERSTAND THEIR PROBLEMS."


__
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 arch...@mail-archive.com 

[Elecraft] 700Hz INRAD filter for sale

[Lou Laderman via Elecraft]

I have an ultra-rare INRAD 700Hz filter for the K3/K3S from the special run
in 2013. $160 shipped (US). If interested, please respond to me directly
(off the mailing list). 

 

73, Lou W0FK

__
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 arch...@mail-archive.com 

[Elecraft] IMD of MOSFETs vs. bipolar

[Andy Durbin]

"The result is that it's very difficult to cause overdrive and splatter with a 
K4, even if you try to do it intentionally."

Same is true for the much older Kenwood TS-590S.  I have tried several times to 
produce dirty signals to illustrate digital modes presentations.  I have never 
been able to do so and had to use examples of other transmitted signals I had 
stored in my "rogues gallery".

One of the worst digital mode signals I ever saw came from an Elecraft K3.  It 
was fixed quickly after I sent a screen shot.

Andy, k3wyc
__
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 arch...@mail-archive.com 

Re: [Elecraft] IMD of MOSFETs vs. bipolar

[Lou Laderman via Elecraft]

It’s only anecdotal, but I was in a 6M QSO where we both were receiving each 
other with 20dB+ signals. I adjusted CMP from 0 to 30 and the difference heard 
by the other station was 6dB. It definitely works. 

73, Lou W0FK

On Jun 28, 2022, at 11:18 PM, Wayne Burdick  wrote:

Reducing power while maintaining communications effectiveness recently became a 
whole lot easier on the K4 with the addition of CESSB. In our tests, average 
power went up by over 6 dB between settings of CMP=0 and CMP=30.
__
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 arch...@mail-archive.com 

[Elecraft] K2 sn 179 drop outs

[Paul Kemp]

I used my K2, s/n 179, at FD with great success with one problem. During tuning 
on 40 and 20M the encoder would temporarily "drop out", causing the received 
signals to cut out.

I bought the radio at an estate sale last September with the intent to use it 
for FD. It was a Rev A so I put in the Rev B upgrades for whatever options were 
installed (not much if any). I also added the noise blanker. I had noticed the 
drop out when I used the radio on occasion but assumed it was due to lack of 
use.

Elecraft doesn't show an upgraded encoder assembly on their website. Is there 
one for such an old radio? I have an email in to the tech support there, as 
well as researching the reflector.

Paul WB0CJB


Sent from my Galaxy

__
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 arch...@mail-archive.com