[Elecraft] KPod and Digout1

[Jim Miller]

Looks like the Kpod could be used to control Digout1 via the MP command in
a macro. If so that would give another controllable output in addition to
the three on the Kpod itself.

That looks like it will be useful for my K3s station configuration.

Trying to eliminate miscellaneous little boxes and consolidate on Kpod.

73

jim ab3cv
__
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] KPA500 Band Tracking

[Jack Brindle]

You have found the problem by now, but let me comment on some other areas. The 
only place in the KPA500 that is restricted is the US FCC-mandated CB 
frequencies of 26 to 28 MHz. If you really want to output 600 watts on 30 
meters (as is allowed in some areas) go right ahead. It won’t operate below 1.6 
MHz because of limitations in the frequency counter code (making sure the 
counter is functioning properly), and above 54 MHz it probably won’t do all 
that much as the 6m bandpass filter does its work.

The KPA listens to the BAND0-3 inputs for band determination. It will change 
bands pretty much immediately on seeing those input signals change. It also 
counts the input frequency and will switch bands if the count shows a different 
band - and will ignore the band inputs to use that band until they change 
again. So even though it detected something other than the combination for 40 
meters, it would have gone there on TX and stayed until you later changed bands.

Lastly, what Don was referring to - pressing a band button on the KPA500, when 
the RADIO is set to K3, will send a request to the K3/K3S to go to that band. 
When the K3 responds by changing bands, it will output the proper combination 
on its BAND outputs, which will then cause the KPA to itself change bands. In 
other RADIO settings the KPA will immediately change bands, but not so with the 
K3 setting.

Hope this helps. Those AUX cables can be pesky at times - make sure none of the 
pins are bent, and that everything is connecting properly. And, as we have said 
many times, do not use a VGA cable unless you are absolutely sure it is full 
15-pin straight through, since most VGA cables connect several pins together as 
grounds. Me? I fabricated my own cables for my station, but then I have the 
facilities to do so…

73!

Jack Brindle, W6FB



> On Aug 7, 2016, at 5:21 PM, Dauer, Edward  wrote:
> 
> I appreciate your having written, Cliff; and it is the case that 30 meters is 
> an oddball.  Just as the K3 is booby-trapped to prevent transmitting out of 
> band, it could very well have been that adding 30 meters to the working bands 
> would have required some special consideration to keep the amp from violating 
> the power limitations.
> 
> Thanks again,
> 
> Ted, KN1CBR
> 
> 
> On 8/7/16, 6:10 PM, "Cliff Frescura"  wrote:
> 
>I think I jumped the gun and was wrong.
> 
>73,
> 
>Cliff K3LL/6 
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
> __
> 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 jackbrin...@me.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] KPA500 Band Tracking

[Dauer, Edward]

I appreciate your having written, Cliff; and it is the case that 30 meters is 
an oddball.  Just as the K3 is booby-trapped to prevent transmitting out of 
band, it could very well have been that adding 30 meters to the working bands 
would have required some special consideration to keep the amp from violating 
the power limitations.

Thanks again,

Ted, KN1CBR


On 8/7/16, 6:10 PM, "Cliff Frescura"  wrote:

I think I jumped the gun and was wrong.

73,

Cliff K3LL/6 










__
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] KPA500 Band Tracking

[Dauer, Edward]

Thanks, Don; that may have been the key.  Even with all of the connectors tight 
there could be an intermittent fault in any one of them.  There are four 
connectors and two cables linking the K3 with the amp through the KAT500 tuner, 
as well as the internal connections in the tuner.  It could be that a random 
movement triggered the intermittency and that reseating them all moved the 
equivalent of the cat’s whisker back onto the sweet spot of the galena.  I may 
just replace them all – or wait until the problem reappears and then do the 
Band0 line check to see where the fault lies.  Thanks again for your thoughtful 
help . . . 

Ted, KN1CBR


On 8/7/16, 6:07 PM, "Don Wilhelm"  wrote:

Ted,

One other observation, it would appear that you are missing the BAND0 
signal at the KPA500.  Make sure the ACC connector on the K3 is tight as 
well as other end at the KPA500 (AUX cable).

If you moved things around on the operating desk, it is possible that 
you incurred some cable damage - you should be able to do a continuity 
check on the BAND0 signal line in the cable.

73,
Don W3FPR
 

__
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] KPA500 Band Tracking

[Cliff Frescura]

I think I jumped the gun and was wrong.

73,

Cliff K3LL/6

-Original Message-
From: Dauer, Edward [mailto:eda...@law.du.edu] 
Sent: Sunday, August 07, 2016 3:42 PM
To: Cliff Frescura; elecraft@mailman.qth.net; brian
Subject: Re: [Elecraft] KPA500 Band Tracking

Thanks, Cliff.  I am aware of the 30M 200W power limitation, but I don’t see 
why adding 30M to the K3’s Band Map would cause 40 meters and 10 meters to be 
in error.  When the K3 is at 7.0 MHz the KPA500 switches to 3.5.  When the K3 
is at 28.0 MHz the KPA500 switches to 24.9.  That never happened before today.  
Moreover the amp correctly senses 30M on the first dit and switches correctly, 
and seems very happy producing 200W or more on 30M.

Brian, K3KO, suggested disconnecting the cable from the amp to see what the 
band buttons on the amp do.  They work correctly with the cable disconnected, 
and they work correctly with the cable connected and the K3’s power off.  7.0 
switches to 7.0, 28 switches to 28, and so forth.  So what does that mean – 
that the fault lies in the K3?  But before adding 30M to the Band map in the K3 
changing bands worked for all of 80, 40, 20, 15, and 10 – that is, changing the 
K3 band changed the KPA500 band correctly.  Now it doesn’t work for 40 and 10, 
and 30; but it does for 80, 20 and 15.  Since the only change that occurred was 
adding 30M to the band map, does that mean something is fouled up in the 
configuration?  I did recycle the power to both the K3 and the KPA500 after 
making the configuration change.

One other fact – pressing the 10MHz band button on the KPA500 correctly 
switches the K3 to 10MHz – but places the amp on 5.3 MHz.  The amp then 
switches to 10 MHz with the first transmitted dit.  But pressing the 10MHz band 
button on the amp when the K3 power is off changes the amp to 10 MHz.

Appreciative and still perplexed,  Ted, KN1CBR


Edward A. Dauer,  LL.B.  M.P.H.
Dean Emeritus and Professor Emeritus of Law University of Denver


On 8/7/16, 4:19 PM, "Cliff Frescura"  wrote:

"But the KPA doesn’t track the K3’s band choice correctly."

...it's by design.

In the US the maximum power on 30m is 200W PEP.

http://www.arrl.org/frequency-allocations

73,

Cliff K3LL/6

-Original Message-
From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of 
Dauer, Edward
Sent: Sunday, August 07, 2016 2:50 PM
To: elecraft@mailman.qth.net
Subject: [Elecraft] KPA500 Band Tracking

I must have done something I didn’t mean to do.

Just put up a 30 meter antenna today.  It works fine.  Until today I had 
the K3 band map set to include only 80-40-20-15-10.  The KPA500 tracked it 
automatically perfectly.  I then went into the config menu for band map and set 
30 meters to IN.   The K3 works perfectly – band switching gives me, in MHz, 
3.5 – 7.0 – 10.1 – 14.0 – 21.0 – 28.0 and then cycles back to 3.5  That is also 
exactly what I expected.

But the KPA doesn’t track the K3’s band choice correctly.  For 80 I get 80. 
 For 40 on the K3 I get 80 on the KPA500. For 30 on the K3 I get 5.3MHz on the 
KPA500.  For 20 I get 20.  For 15 I get 15.  And for 10 on the K3 I get 24.9 
MHz on the KPA500. 

Interestingly, the “Band” buttons on the KPA500 have the same errors.  In 
MHz, pressing 1.8 yields 5.3.  3.5 is OK.  Pressing 7.0 produces 3.5.  14 and 
21 are OK.  And pressing 28 produces 24.9.

The frequency sampling, however, works perfectly.  A single dit on any band 
switches the KPA500 to the correct band, as defined by the K3.

The cables are all Elecraft issue.  They are all connected correctly – 
witness that everything worked perfectly, on every band, until I added 30M into 
the K3’s band map.  Because both the K3 auto tracking feature and the Band 
buttons on the KPA500 yield the same errors, I think I must have messed up 
something in the amp.

I have, by the way, already RdTFM.

Any ideas about what I might have done?  Equally useful would be, how do I 
undo it?

Many thanks for whatever anyone can suggest . . . 

Ted, KN1CBR

__
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 c...@cfcorp.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] KPA500 Band Tracking

[Don Wilhelm]

Ted,

One other observation, it would appear that you are missing the BAND0 
signal at the KPA500.  Make sure the ACC connector on the K3 is tight as 
well as other end at the KPA500 (AUX cable).


If you moved things around on the operating desk, it is possible that 
you incurred some cable damage - you should be able to do a continuity 
check on the BAND0 signal line in the cable.


73,
Don W3FPR

On 8/7/2016 5:50 PM, Dauer, Edward wrote:

I must have done something I didn’t mean to do.

Just put up a 30 meter antenna today.  It works fine.  Until today I had the K3 
band map set to include only 80-40-20-15-10.  The KPA500 tracked it 
automatically perfectly.  I then went into the config menu for band map and set 
30 meters to IN.   The K3 works perfectly – band switching gives me, in MHz, 
3.5 – 7.0 – 10.1 – 14.0 – 21.0 – 28.0 and then cycles back to 3.5  That is also 
exactly what I expected.

But the KPA doesn’t track the K3’s band choice correctly.  For 80 I get 80.  
For 40 on the K3 I get 80 on the KPA500. For 30 on the K3 I get 5.3MHz on the 
KPA500.  For 20 I get 20.  For 15 I get 15.  And for 10 on the K3 I get 24.9 
MHz on the KPA500.

Interestingly, the “Band” buttons on the KPA500 have the same errors.  In MHz, 
pressing 1.8 yields 5.3.  3.5 is OK.  Pressing 7.0 produces 3.5.  14 and 21 are 
OK.  And pressing 28 produces 24.9.




__
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] KPA500 Band Tracking

[Dauer, Edward]

Success!!

Mark, WB9CIF, and Hank, K7HP, both suggested a combination of things including 
resetting the F/W files, swapping cables around to bypass the KAT, unplugging 
and reseating all of the aux plugs . . . 

Hard to say what the winner was, but after doing all the cable things and then 
reloading the F/W in both the K3 and KPA500, it all works!  Now back to the 
day’s principal objective – getting the K3 on 30 meters.

I have no idea why just adding one band to the band map caused those mysterious 
faults.  And, to quote Mark Musick commenting on his once resetting his aux 
cables, “I don’t know why that solved the problem . . . “

But then, understanding how sacred rituals effect happy outcomes has defied 
greater minds than mine.

Last point, which I have said before and will say again:  This reflector is an 
outstanding community of first-class ops.  Many thanks to all who helped me 
this time.

Ted, KN1CBR






Edward A. Dauer,  LL.B.  M.P.H.
Dean Emeritus and Professor Emeritus of Law
University of Denver


On 8/7/16, 4:52 PM, "Mark E. Musick"  wrote:

My K3S and KPA500 track correctly on 30 meters. If I select 30 meters from 
the KPA500 front panel both go to 30 meters. When I select 30 meters on the K3S 
the KPA500 goes to 30. I routinely use the KPA500 to run 200 Watts on 30. This 
was also true for the K3 I had before the K3S.
Check your cables again connecting the K3 aux port to the KPA500. Remove 
them and reset them and see if that changes anything. I had a similar issue and 
that solved the problem. I don't know why that solved the problem, but the 
issue has not reoccurred.
Also, after you added 30 to the band map, did you turn the K3 off then back 
on as suggested in the manual when making changes in the menu? 

Mark Musick, WB9CIF

-Original Message-
From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Cliff 
Frescura
Sent: Sunday, August 7, 2016 10:20 PM
To: 'Dauer, Edward' ; elecraft@mailman.qth.net
Subject: Re: [Elecraft] KPA500 Band Tracking

"But the KPA doesn’t track the K3’s band choice correctly."

...it's by design.

In the US the maximum power on 30m is 200W PEP.

http://www.arrl.org/frequency-allocations

73,

Cliff K3LL/6

-Original Message-
From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of 
Dauer, Edward
Sent: Sunday, August 07, 2016 2:50 PM
To: elecraft@mailman.qth.net
Subject: [Elecraft] KPA500 Band Tracking

I must have done something I didn’t mean to do.

Just put up a 30 meter antenna today.  It works fine.  Until today I had 
the K3 band map set to include only 80-40-20-15-10.  The KPA500 tracked it 
automatically perfectly.  I then went into the config menu for band map and set 
30 meters to IN.   The K3 works perfectly – band switching gives me, in MHz, 
3.5 – 7.0 – 10.1 – 14.0 – 21.0 – 28.0 and then cycles back to 3.5  That is also 
exactly what I expected.

But the KPA doesn’t track the K3’s band choice correctly.  For 80 I get 80. 
 For 40 on the K3 I get 80 on the KPA500. For 30 on the K3 I get 5.3MHz on the 
KPA500.  For 20 I get 20.  For 15 I get 15.  And for 10 on the K3 I get 24.9 
MHz on the KPA500. 

Interestingly, the “Band” buttons on the KPA500 have the same errors.  In 
MHz, pressing 1.8 yields 5.3.  3.5 is OK.  Pressing 7.0 produces 3.5.  14 and 
21 are OK.  And pressing 28 produces 24.9.

The frequency sampling, however, works perfectly.  A single dit on any band 
switches the KPA500 to the correct band, as defined by the K3.

The cables are all Elecraft issue.  They are all connected correctly – 
witness that everything worked perfectly, on every band, until I added 30M into 
the K3’s band map.  Because both the K3 auto tracking feature and the Band 
buttons on the KPA500 yield the same errors, I think I must have messed up 
something in the amp.

I have, by the way, already RdTFM.

Any ideas about what I might have done?  Equally useful would be, how do I 
undo it?

Many thanks for whatever anyone can suggest . . . 

Ted, KN1CBR

__
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 c...@cfcorp.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: 

Re: [Elecraft] KPA500 Band Tracking

[iain macdonnell - N6ML]

Seems like an issue with the "BCD" data from the K3 to the KPA500, but
the symptoms don't seem to point to a single broken wire.

It may be an obscure firmware bug. What happens if you take 30m back
out of the band-map? Is the K3 firmware up-to-date?

73,

~iain / N6ML



On Sun, Aug 7, 2016 at 3:42 PM, Dauer, Edward  wrote:
> Thanks, Cliff.  I am aware of the 30M 200W power limitation, but I don’t see 
> why adding 30M to the K3’s Band Map would cause 40 meters and 10 meters to be 
> in error.  When the K3 is at 7.0 MHz the KPA500 switches to 3.5.  When the K3 
> is at 28.0 MHz the KPA500 switches to 24.9.  That never happened before 
> today.  Moreover the amp correctly senses 30M on the first dit and switches 
> correctly, and seems very happy producing 200W or more on 30M.
>
> Brian, K3KO, suggested disconnecting the cable from the amp to see what the 
> band buttons on the amp do.  They work correctly with the cable disconnected, 
> and they work correctly with the cable connected and the K3’s power off.  7.0 
> switches to 7.0, 28 switches to 28, and so forth.  So what does that mean – 
> that the fault lies in the K3?  But before adding 30M to the Band map in the 
> K3 changing bands worked for all of 80, 40, 20, 15, and 10 – that is, 
> changing the K3 band changed the KPA500 band correctly.  Now it doesn’t work 
> for 40 and 10, and 30; but it does for 80, 20 and 15.  Since the only change 
> that occurred was adding 30M to the band map, does that mean something is 
> fouled up in the configuration?  I did recycle the power to both the K3 and 
> the KPA500 after making the configuration change.
>
> One other fact – pressing the 10MHz band button on the KPA500 correctly 
> switches the K3 to 10MHz – but places the amp on 5.3 MHz.  The amp then 
> switches to 10 MHz with the first transmitted dit.  But pressing the 10MHz 
> band button on the amp when the K3 power is off changes the amp to 10 MHz.
>
> Appreciative and still perplexed,  Ted, KN1CBR
>
>
> Edward A. Dauer,  LL.B.  M.P.H.
> Dean Emeritus and Professor Emeritus of Law
> University of Denver
>
>
> On 8/7/16, 4:19 PM, "Cliff Frescura"  wrote:
>
> "But the KPA doesn’t track the K3’s band choice correctly."
>
> ...it's by design.
>
> In the US the maximum power on 30m is 200W PEP.
>
> http://www.arrl.org/frequency-allocations
>
> 73,
>
> Cliff K3LL/6
>
> -Original Message-
> From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of 
> Dauer, Edward
> Sent: Sunday, August 07, 2016 2:50 PM
> To: elecraft@mailman.qth.net
> Subject: [Elecraft] KPA500 Band Tracking
>
> I must have done something I didn’t mean to do.
>
> Just put up a 30 meter antenna today.  It works fine.  Until today I had 
> the K3 band map set to include only 80-40-20-15-10.  The KPA500 tracked it 
> automatically perfectly.  I then went into the config menu for band map and 
> set 30 meters to IN.   The K3 works perfectly – band switching gives me, in 
> MHz, 3.5 – 7.0 – 10.1 – 14.0 – 21.0 – 28.0 and then cycles back to 3.5  That 
> is also exactly what I expected.
>
> But the KPA doesn’t track the K3’s band choice correctly.  For 80 I get 
> 80.  For 40 on the K3 I get 80 on the KPA500. For 30 on the K3 I get 5.3MHz 
> on the KPA500.  For 20 I get 20.  For 15 I get 15.  And for 10 on the K3 I 
> get 24.9 MHz on the KPA500.
>
> Interestingly, the “Band” buttons on the KPA500 have the same errors.  In 
> MHz, pressing 1.8 yields 5.3.  3.5 is OK.  Pressing 7.0 produces 3.5.  14 and 
> 21 are OK.  And pressing 28 produces 24.9.
>
> The frequency sampling, however, works perfectly.  A single dit on any 
> band switches the KPA500 to the correct band, as defined by the K3.
>
> The cables are all Elecraft issue.  They are all connected correctly – 
> witness that everything worked perfectly, on every band, until I added 30M 
> into the K3’s band map.  Because both the K3 auto tracking feature and the 
> Band buttons on the KPA500 yield the same errors, I think I must have messed 
> up something in the amp.
>
> I have, by the way, already RdTFM.
>
> Any ideas about what I might have done?  Equally useful would be, how do 
> I undo it?
>
> Many thanks for whatever anyone can suggest . . .
>
> Ted, KN1CBR
>
> __
> 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 c...@cfcorp.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

Re: [Elecraft] KPA500 Band Tracking

[Jim Miller]

5.3mhz is the indication at 60m has been selected. Usually means something is 
wrong other than the cable since all lines must be high or low. I forget which. 

Jim ab3cv

On Aug 7, 2016, at 6:52 PM, Mark E. Musick  wrote:

My K3S and KPA500 track correctly on 30 meters. If I select 30 meters from the 
KPA500 front panel both go to 30 meters. When I select 30 meters on the K3S the 
KPA500 goes to 30. I routinely use the KPA500 to run 200 Watts on 30. This was 
also true for the K3 I had before the K3S.
Check your cables again connecting the K3 aux port to the KPA500. Remove them 
and reset them and see if that changes anything. I had a similar issue and that 
solved the problem. I don't know why that solved the problem, but the issue has 
not reoccurred.
Also, after you added 30 to the band map, did you turn the K3 off then back on 
as suggested in the manual when making changes in the menu? 

Mark Musick, WB9CIF

-Original Message-
From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Cliff 
Frescura
Sent: Sunday, August 7, 2016 10:20 PM
To: 'Dauer, Edward' ; elecraft@mailman.qth.net
Subject: Re: [Elecraft] KPA500 Band Tracking

"But the KPA doesn’t track the K3’s band choice correctly."

...it's by design.

In the US the maximum power on 30m is 200W PEP.

http://www.arrl.org/frequency-allocations

73,

Cliff K3LL/6

-Original Message-
From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Dauer, 
Edward
Sent: Sunday, August 07, 2016 2:50 PM
To: elecraft@mailman.qth.net
Subject: [Elecraft] KPA500 Band Tracking

I must have done something I didn’t mean to do.

Just put up a 30 meter antenna today.  It works fine.  Until today I had the K3 
band map set to include only 80-40-20-15-10.  The KPA500 tracked it 
automatically perfectly.  I then went into the config menu for band map and set 
30 meters to IN.   The K3 works perfectly – band switching gives me, in MHz, 
3.5 – 7.0 – 10.1 – 14.0 – 21.0 – 28.0 and then cycles back to 3.5  That is also 
exactly what I expected.

But the KPA doesn’t track the K3’s band choice correctly.  For 80 I get 80.  
For 40 on the K3 I get 80 on the KPA500. For 30 on the K3 I get 5.3MHz on the 
KPA500.  For 20 I get 20.  For 15 I get 15.  And for 10 on the K3 I get 24.9 
MHz on the KPA500. 

Interestingly, the “Band” buttons on the KPA500 have the same errors.  In MHz, 
pressing 1.8 yields 5.3.  3.5 is OK.  Pressing 7.0 produces 3.5.  14 and 21 are 
OK.  And pressing 28 produces 24.9.

The frequency sampling, however, works perfectly.  A single dit on any band 
switches the KPA500 to the correct band, as defined by the K3.

The cables are all Elecraft issue.  They are all connected correctly – witness 
that everything worked perfectly, on every band, until I added 30M into the 
K3’s band map.  Because both the K3 auto tracking feature and the Band buttons 
on the KPA500 yield the same errors, I think I must have messed up something in 
the amp.

I have, by the way, already RdTFM.

Any ideas about what I might have done?  Equally useful would be, how do I undo 
it?

Many thanks for whatever anyone can suggest . . . 

Ted, KN1CBR

__
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 c...@cfcorp.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 markmus...@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 j...@jtmiller.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] KPA500 Band Tracking

[Don Wilhelm]

Ted,

Do you have any other device (non-Elecraft) set up to read the K3 Band 
Data lines?
If so, that may be part of the problem - you may have to add diodes to 
the band data lines on that device.


There is another subtle  point about when the KPA500 changes bands.  
Even though it monitors the band data lines, it does not act on them 
immediately, it waits for a transmission before changing bands.  The 
details are a bit fuzzy to me right now, but Jack Brindle explained it 
several years ago and it make sense.


73,
Don w3FPR

On 8/7/2016 5:50 PM, Dauer, Edward wrote:

I must have done something I didn’t mean to do.

Just put up a 30 meter antenna today.  It works fine.  Until today I had the K3 
band map set to include only 80-40-20-15-10.  The KPA500 tracked it 
automatically perfectly.  I then went into the config menu for band map and set 
30 meters to IN.   The K3 works perfectly – band switching gives me, in MHz, 
3.5 – 7.0 – 10.1 – 14.0 – 21.0 – 28.0 and then cycles back to 3.5  That is also 
exactly what I expected.

But the KPA doesn’t track the K3’s band choice correctly.  For 80 I get 80.  
For 40 on the K3 I get 80 on the KPA500. For 30 on the K3 I get 5.3MHz on the 
KPA500.  For 20 I get 20.  For 15 I get 15.  And for 10 on the K3 I get 24.9 
MHz on the KPA500.

Interestingly, the “Band” buttons on the KPA500 have the same errors.  In MHz, 
pressing 1.8 yields 5.3.  3.5 is OK.  Pressing 7.0 produces 3.5.  14 and 21 are 
OK.  And pressing 28 produces 24.9.

The frequency sampling, however, works perfectly.  A single dit on any band 
switches the KPA500 to the correct band, as defined by the K3.




__
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] KPA500 Band Tracking

[Mark E. Musick]

Ted,
Our e-mails crossed. 
You've cycled both units. I would still try disconnecting the aux cable and 
resetting it at both ends. 

Mark, WB9CIF

-Original Message-
From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Dauer, 
Edward
Sent: Sunday, August 7, 2016 10:42 PM
To: Cliff Frescura ; elecraft@mailman.qth.net; brian 

Subject: Re: [Elecraft] KPA500 Band Tracking

Thanks, Cliff.  I am aware of the 30M 200W power limitation, but I don’t see 
why adding 30M to the K3’s Band Map would cause 40 meters and 10 meters to be 
in error.  When the K3 is at 7.0 MHz the KPA500 switches to 3.5.  When the K3 
is at 28.0 MHz the KPA500 switches to 24.9.  That never happened before today.  
Moreover the amp correctly senses 30M on the first dit and switches correctly, 
and seems very happy producing 200W or more on 30M.

Brian, K3KO, suggested disconnecting the cable from the amp to see what the 
band buttons on the amp do.  They work correctly with the cable disconnected, 
and they work correctly with the cable connected and the K3’s power off.  7.0 
switches to 7.0, 28 switches to 28, and so forth.  So what does that mean – 
that the fault lies in the K3?  But before adding 30M to the Band map in the K3 
changing bands worked for all of 80, 40, 20, 15, and 10 – that is, changing the 
K3 band changed the KPA500 band correctly.  Now it doesn’t work for 40 and 10, 
and 30; but it does for 80, 20 and 15.  Since the only change that occurred was 
adding 30M to the band map, does that mean something is fouled up in the 
configuration?  I did recycle the power to both the K3 and the KPA500 after 
making the configuration change.

One other fact – pressing the 10MHz band button on the KPA500 correctly 
switches the K3 to 10MHz – but places the amp on 5.3 MHz.  The amp then 
switches to 10 MHz with the first transmitted dit.  But pressing the 10MHz band 
button on the amp when the K3 power is off changes the amp to 10 MHz.

Appreciative and still perplexed,  Ted, KN1CBR


Edward A. Dauer,  LL.B.  M.P.H.
Dean Emeritus and Professor Emeritus of Law University of Denver


On 8/7/16, 4:19 PM, "Cliff Frescura"  wrote:

"But the KPA doesn’t track the K3’s band choice correctly."

...it's by design.

In the US the maximum power on 30m is 200W PEP.

http://www.arrl.org/frequency-allocations

73,

Cliff K3LL/6

-Original Message-
From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of 
Dauer, Edward
Sent: Sunday, August 07, 2016 2:50 PM
To: elecraft@mailman.qth.net
Subject: [Elecraft] KPA500 Band Tracking

I must have done something I didn’t mean to do.

Just put up a 30 meter antenna today.  It works fine.  Until today I had 
the K3 band map set to include only 80-40-20-15-10.  The KPA500 tracked it 
automatically perfectly.  I then went into the config menu for band map and set 
30 meters to IN.   The K3 works perfectly – band switching gives me, in MHz, 
3.5 – 7.0 – 10.1 – 14.0 – 21.0 – 28.0 and then cycles back to 3.5  That is also 
exactly what I expected.

But the KPA doesn’t track the K3’s band choice correctly.  For 80 I get 80. 
 For 40 on the K3 I get 80 on the KPA500. For 30 on the K3 I get 5.3MHz on the 
KPA500.  For 20 I get 20.  For 15 I get 15.  And for 10 on the K3 I get 24.9 
MHz on the KPA500. 

Interestingly, the “Band” buttons on the KPA500 have the same errors.  In 
MHz, pressing 1.8 yields 5.3.  3.5 is OK.  Pressing 7.0 produces 3.5.  14 and 
21 are OK.  And pressing 28 produces 24.9.

The frequency sampling, however, works perfectly.  A single dit on any band 
switches the KPA500 to the correct band, as defined by the K3.

The cables are all Elecraft issue.  They are all connected correctly – 
witness that everything worked perfectly, on every band, until I added 30M into 
the K3’s band map.  Because both the K3 auto tracking feature and the Band 
buttons on the KPA500 yield the same errors, I think I must have messed up 
something in the amp.

I have, by the way, already RdTFM.

Any ideas about what I might have done?  Equally useful would be, how do I 
undo it?

Many thanks for whatever anyone can suggest . . . 

Ted, KN1CBR

__
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 c...@cfcorp.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 

Re: [Elecraft] KPA500 Band Tracking

[Mark E. Musick]

My K3S and KPA500 track correctly on 30 meters. If I select 30 meters from the 
KPA500 front panel both go to 30 meters. When I select 30 meters on the K3S the 
KPA500 goes to 30. I routinely use the KPA500 to run 200 Watts on 30. This was 
also true for the K3 I had before the K3S.
Check your cables again connecting the K3 aux port to the KPA500. Remove them 
and reset them and see if that changes anything. I had a similar issue and that 
solved the problem. I don't know why that solved the problem, but the issue has 
not reoccurred.
Also, after you added 30 to the band map, did you turn the K3 off then back on 
as suggested in the manual when making changes in the menu? 

Mark Musick, WB9CIF

-Original Message-
From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Cliff 
Frescura
Sent: Sunday, August 7, 2016 10:20 PM
To: 'Dauer, Edward' ; elecraft@mailman.qth.net
Subject: Re: [Elecraft] KPA500 Band Tracking

"But the KPA doesn’t track the K3’s band choice correctly."

...it's by design.

In the US the maximum power on 30m is 200W PEP.

http://www.arrl.org/frequency-allocations

73,

Cliff K3LL/6

-Original Message-
From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Dauer, 
Edward
Sent: Sunday, August 07, 2016 2:50 PM
To: elecraft@mailman.qth.net
Subject: [Elecraft] KPA500 Band Tracking

I must have done something I didn’t mean to do.

Just put up a 30 meter antenna today.  It works fine.  Until today I had the K3 
band map set to include only 80-40-20-15-10.  The KPA500 tracked it 
automatically perfectly.  I then went into the config menu for band map and set 
30 meters to IN.   The K3 works perfectly – band switching gives me, in MHz, 
3.5 – 7.0 – 10.1 – 14.0 – 21.0 – 28.0 and then cycles back to 3.5  That is also 
exactly what I expected.

But the KPA doesn’t track the K3’s band choice correctly.  For 80 I get 80.  
For 40 on the K3 I get 80 on the KPA500. For 30 on the K3 I get 5.3MHz on the 
KPA500.  For 20 I get 20.  For 15 I get 15.  And for 10 on the K3 I get 24.9 
MHz on the KPA500. 

Interestingly, the “Band” buttons on the KPA500 have the same errors.  In MHz, 
pressing 1.8 yields 5.3.  3.5 is OK.  Pressing 7.0 produces 3.5.  14 and 21 are 
OK.  And pressing 28 produces 24.9.

The frequency sampling, however, works perfectly.  A single dit on any band 
switches the KPA500 to the correct band, as defined by the K3.

The cables are all Elecraft issue.  They are all connected correctly – witness 
that everything worked perfectly, on every band, until I added 30M into the 
K3’s band map.  Because both the K3 auto tracking feature and the Band buttons 
on the KPA500 yield the same errors, I think I must have messed up something in 
the amp.

I have, by the way, already RdTFM.

Any ideas about what I might have done?  Equally useful would be, how do I undo 
it?

Many thanks for whatever anyone can suggest . . . 

Ted, KN1CBR

__
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 c...@cfcorp.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 markmus...@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] KPA500 Band Tracking

[Dauer, Edward]

Thanks, Cliff.  I am aware of the 30M 200W power limitation, but I don’t see 
why adding 30M to the K3’s Band Map would cause 40 meters and 10 meters to be 
in error.  When the K3 is at 7.0 MHz the KPA500 switches to 3.5.  When the K3 
is at 28.0 MHz the KPA500 switches to 24.9.  That never happened before today.  
Moreover the amp correctly senses 30M on the first dit and switches correctly, 
and seems very happy producing 200W or more on 30M.

Brian, K3KO, suggested disconnecting the cable from the amp to see what the 
band buttons on the amp do.  They work correctly with the cable disconnected, 
and they work correctly with the cable connected and the K3’s power off.  7.0 
switches to 7.0, 28 switches to 28, and so forth.  So what does that mean – 
that the fault lies in the K3?  But before adding 30M to the Band map in the K3 
changing bands worked for all of 80, 40, 20, 15, and 10 – that is, changing the 
K3 band changed the KPA500 band correctly.  Now it doesn’t work for 40 and 10, 
and 30; but it does for 80, 20 and 15.  Since the only change that occurred was 
adding 30M to the band map, does that mean something is fouled up in the 
configuration?  I did recycle the power to both the K3 and the KPA500 after 
making the configuration change.

One other fact – pressing the 10MHz band button on the KPA500 correctly 
switches the K3 to 10MHz – but places the amp on 5.3 MHz.  The amp then 
switches to 10 MHz with the first transmitted dit.  But pressing the 10MHz band 
button on the amp when the K3 power is off changes the amp to 10 MHz.

Appreciative and still perplexed,  Ted, KN1CBR


Edward A. Dauer,  LL.B.  M.P.H.
Dean Emeritus and Professor Emeritus of Law
University of Denver


On 8/7/16, 4:19 PM, "Cliff Frescura"  wrote:

"But the KPA doesn’t track the K3’s band choice correctly."

...it's by design.

In the US the maximum power on 30m is 200W PEP.

http://www.arrl.org/frequency-allocations

73,

Cliff K3LL/6

-Original Message-
From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of 
Dauer, Edward
Sent: Sunday, August 07, 2016 2:50 PM
To: elecraft@mailman.qth.net
Subject: [Elecraft] KPA500 Band Tracking

I must have done something I didn’t mean to do.

Just put up a 30 meter antenna today.  It works fine.  Until today I had 
the K3 band map set to include only 80-40-20-15-10.  The KPA500 tracked it 
automatically perfectly.  I then went into the config menu for band map and set 
30 meters to IN.   The K3 works perfectly – band switching gives me, in MHz, 
3.5 – 7.0 – 10.1 – 14.0 – 21.0 – 28.0 and then cycles back to 3.5  That is also 
exactly what I expected.

But the KPA doesn’t track the K3’s band choice correctly.  For 80 I get 80. 
 For 40 on the K3 I get 80 on the KPA500. For 30 on the K3 I get 5.3MHz on the 
KPA500.  For 20 I get 20.  For 15 I get 15.  And for 10 on the K3 I get 24.9 
MHz on the KPA500. 

Interestingly, the “Band” buttons on the KPA500 have the same errors.  In 
MHz, pressing 1.8 yields 5.3.  3.5 is OK.  Pressing 7.0 produces 3.5.  14 and 
21 are OK.  And pressing 28 produces 24.9.

The frequency sampling, however, works perfectly.  A single dit on any band 
switches the KPA500 to the correct band, as defined by the K3.

The cables are all Elecraft issue.  They are all connected correctly – 
witness that everything worked perfectly, on every band, until I added 30M into 
the K3’s band map.  Because both the K3 auto tracking feature and the Band 
buttons on the KPA500 yield the same errors, I think I must have messed up 
something in the amp.

I have, by the way, already RdTFM.

Any ideas about what I might have done?  Equally useful would be, how do I 
undo it?

Many thanks for whatever anyone can suggest . . . 

Ted, KN1CBR

__
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 c...@cfcorp.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] KPA500 Band Tracking

[Cliff Frescura]

"But the KPA doesn’t track the K3’s band choice correctly."

...it's by design.

In the US the maximum power on 30m is 200W PEP.

http://www.arrl.org/frequency-allocations

73,

Cliff K3LL/6

-Original Message-
From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Dauer, 
Edward
Sent: Sunday, August 07, 2016 2:50 PM
To: elecraft@mailman.qth.net
Subject: [Elecraft] KPA500 Band Tracking

I must have done something I didn’t mean to do.

Just put up a 30 meter antenna today.  It works fine.  Until today I had the K3 
band map set to include only 80-40-20-15-10.  The KPA500 tracked it 
automatically perfectly.  I then went into the config menu for band map and set 
30 meters to IN.   The K3 works perfectly – band switching gives me, in MHz, 
3.5 – 7.0 – 10.1 – 14.0 – 21.0 – 28.0 and then cycles back to 3.5  That is also 
exactly what I expected.

But the KPA doesn’t track the K3’s band choice correctly.  For 80 I get 80.  
For 40 on the K3 I get 80 on the KPA500. For 30 on the K3 I get 5.3MHz on the 
KPA500.  For 20 I get 20.  For 15 I get 15.  And for 10 on the K3 I get 24.9 
MHz on the KPA500. 

Interestingly, the “Band” buttons on the KPA500 have the same errors.  In MHz, 
pressing 1.8 yields 5.3.  3.5 is OK.  Pressing 7.0 produces 3.5.  14 and 21 are 
OK.  And pressing 28 produces 24.9.

The frequency sampling, however, works perfectly.  A single dit on any band 
switches the KPA500 to the correct band, as defined by the K3.

The cables are all Elecraft issue.  They are all connected correctly – witness 
that everything worked perfectly, on every band, until I added 30M into the 
K3’s band map.  Because both the K3 auto tracking feature and the Band buttons 
on the KPA500 yield the same errors, I think I must have messed up something in 
the amp.

I have, by the way, already RdTFM.

Any ideas about what I might have done?  Equally useful would be, how do I undo 
it?

Many thanks for whatever anyone can suggest . . . 

Ted, KN1CBR

__
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 c...@cfcorp.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] Common mode chokes

[Mel Farrer via Elecraft]

Check Jim's tutorial on RFI.  You will need some clip on #31 cable ferrites, I 
think.
Mel, K6KBE


  From: Cortland Richmond 
 To: elecraft@mailman.qth.net 
 Sent: Sunday, August 7, 2016 2:54 PM
 Subject: Re: [Elecraft] Common mode chokes
   
I had a similar problem in 2005 when noise from a 2kW Honda got into my 
RV on FD.  Lacking any ferrites etc I borrowed a plastic "milk bottle 
box" and wound about 30 feet of extension cord around it., which worked 
well as a temporary fix.

Cortland
ka5s

On 8/7/2016 2:21 PM, elecraft-requ...@mailman.qth.net wrote:
> I have an inverter generator producing S9 noise on 3.5Mhz, and S7 noise on 
> 7Mhz. Higher frequencies are clear.
> If I were to use a trifilar wound choke on the lead from the generator, what 
> would be the best mix...43, 77 or?

__
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 farrerfo...@yahoo.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] Common mode chokes

[Cortland Richmond]

I had a similar problem in 2005 when noise from a 2kW Honda got into my 
RV on FD.  Lacking any ferrites etc I borrowed a plastic "milk bottle 
box" and wound about 30 feet of extension cord around it., which worked 
well as a temporary fix.


Cortland
ka5s

On 8/7/2016 2:21 PM, elecraft-requ...@mailman.qth.net wrote:

I have an inverter generator producing S9 noise on 3.5Mhz, and S7 noise on 
7Mhz. Higher frequencies are clear.
If I were to use a trifilar wound choke on the lead from the generator, what 
would be the best mix...43, 77 or?


__
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] KPA500 Band Tracking

[Dauer, Edward]

I must have done something I didn’t mean to do.

Just put up a 30 meter antenna today.  It works fine.  Until today I had the K3 
band map set to include only 80-40-20-15-10.  The KPA500 tracked it 
automatically perfectly.  I then went into the config menu for band map and set 
30 meters to IN.   The K3 works perfectly – band switching gives me, in MHz, 
3.5 – 7.0 – 10.1 – 14.0 – 21.0 – 28.0 and then cycles back to 3.5  That is also 
exactly what I expected.

But the KPA doesn’t track the K3’s band choice correctly.  For 80 I get 80.  
For 40 on the K3 I get 80 on the KPA500. For 30 on the K3 I get 5.3MHz on the 
KPA500.  For 20 I get 20.  For 15 I get 15.  And for 10 on the K3 I get 24.9 
MHz on the KPA500. 

Interestingly, the “Band” buttons on the KPA500 have the same errors.  In MHz, 
pressing 1.8 yields 5.3.  3.5 is OK.  Pressing 7.0 produces 3.5.  14 and 21 are 
OK.  And pressing 28 produces 24.9.

The frequency sampling, however, works perfectly.  A single dit on any band 
switches the KPA500 to the correct band, as defined by the K3.

The cables are all Elecraft issue.  They are all connected correctly – witness 
that everything worked perfectly, on every band, until I added 30M into the 
K3’s band map.  Because both the K3 auto tracking feature and the Band buttons 
on the KPA500 yield the same errors, I think I must have messed up something in 
the amp.

I have, by the way, already RdTFM.

Any ideas about what I might have done?  Equally useful would be, how do I undo 
it?

Many thanks for whatever anyone can suggest . . . 

Ted, KN1CBR

__
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] PX3 Macro and Text Message Utility

[Joe Stone (KF5WBO)]

PX3 Owners,

I'm looking for beta testers to test a new (free) PC-based utility to manage
PX3 macros and text messages.

First and foremost, I'm looking to test the concept.  Of course, I'm also
looking to flesh out bugs.

A zip file containing the utility, release notes and help file can be found
here,

http://wickedstone.com/KF5WBO/PX3/PX3_software.htm

Simply download and unzip the file to the desired directory.  Refer to Help.

The Utility works with PX3 firmware 1.45 or later.

Please E-mail me privately if you're interested.

73's

Joe Stone
KF5WBO 



--
View this message in context: 
http://elecraft.365791.n2.nabble.com/PX3-Macro-and-Text-Message-Utility-tp7621331.html
Sent from the Elecraft mailing list archive at Nabble.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] KX3/iPad mini and PSK31

[Jeffrey M. Swiger]

Hey All, First Post Ever, but Been running the KX3/PX3 and iPad for 
Some time.
I have the Piglet and do use it from time to time also.
The KX3 and iPad will do fine just the 2 of them together.
I have found to Turn MIC BUTTON off, and MIC BIAS off. This works.
Still need to tweak my VOX levels. Also Run iPad WSPR the Same way.
Jeff-N8NOE
__
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] web site down?

[Clay Autery]

HTTP is back up, but FTP is dead...  no DNS or direct to IP address.

__
Clay Autery, KY5G
MONTAC Enterprises
(318) 518-1389

On 8/7/2016 1:59 PM, Gary Smith wrote:
> FWIW, the site is fine in Connecticut.
>
> 73,
>
> Gary
> KA1J
> __
> 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 caut...@montac.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] web site down?

[Gary Smith]

FWIW, the site is fine in Connecticut.

73,

Gary
KA1J
__
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] web site down?

[ab2tc]

Hi,

Exactly the same here in CNY, HTTP server is back after a brief outage, FTP
is not. This is the exact opposite of what happened when we had the long,
Verizon FIOS only, outage a while ago. Hopefully these findings will help
somebody diagnosing the problem.

AB2TC - Knut 


Dick Grolleman wrote
> Hi All,
> 
> The website is working again, but the FTP server is not. I wanted to
> upgrade 
> to the newest firmware for my K3, but I can not get the newest version.
> 
> 73 de Dick PA3FQA
> 





--
View this message in context: 
http://elecraft.365791.n2.nabble.com/web-site-down-tp7621312p7621327.html
Sent from the Elecraft mailing list archive at Nabble.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] web site down?

[Howard Stephenson]

It's now up and running here in Watsonville
If you are still having issues after Monday 8 AM PDT please send a note to
k3sup...@elecraft.com and we'll get our  IT team to looking into the issue.

73,
Howard Stephenson K6IA
__
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] web site down?

[Dick Grolleman]

Hi All,

The website is working again, but the FTP server is not. I wanted to upgrade 
to the newest firmware for my K3, but I can not get the newest version.


73 de Dick PA3FQA

-Oorspronkelijk bericht- 
From: Mark Lunday

Sent: Sunday, August 7, 2016 8:13 PM
To: 'Clay Autery' ; elecraft@mailman.qth.net
Subject: Re: [Elecraft] web site down?

Working here.

I am using Norton for my DNS, and it shows an IP address of 50.31.74.52

If you can't get to http://www.elecraft.com, try http://50.31.74.52

Mark Lunday, WD4ELG
Greensboro, NC  FM06be
wd4...@arrl.net
http://wd4elg.blogspot.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 groll...@planet.nl 



__
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] web site down?

[David F. Reed]

While it was out earlier, I find it to be back up now (18:20 Z)
--Dave, W5SV

On 8/7/2016 18:13, Mark Lunday wrote:

Working here.

I am using Norton for my DNS, and it shows an IP address of 50.31.74.52

If you can't get to http://www.elecraft.com, try http://50.31.74.52

Mark Lunday, WD4ELG
Greensboro, NC  FM06be
wd4...@arrl.net
http://wd4elg.blogspot.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 w5sv.d...@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] web site down?

[Mark Lunday]

Working here.

I am using Norton for my DNS, and it shows an IP address of 50.31.74.52

If you can't get to http://www.elecraft.com, try http://50.31.74.52

Mark Lunday, WD4ELG
Greensboro, NC  FM06be
wd4...@arrl.net
http://wd4elg.blogspot.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] Elecraft CW Net Announcement

[kev...@coho.net]

Propagation has improved slightly over the week.  The sun has been 
sending us plenty of ions without a lot of sunspots.  The SFU has risen 
to 83.  Hopefully this will be enough to wake up 20 meters again for the 
first net.  40 meters has been OK but more local than normal.  Maybe 
that will change too.


The elk are doing well; I have been creating bedding spots for them over 
the last few years which they enjoy.  There's nothing like walking 
through the woods and having four or five elk just appear around to 
you.  They make much less noise than do deer which is odd because they 
are much bigger.  Good thing they don't mind my presence because those 
large antlers are intimidating.


Please join us on:
14050 kHz at 2200z Sunday (3 PM PDT Sunday)
 7045 kHz at 0100z Monday (6 PM PDT Sunday)

   73,
  Kevin.  KD5ONS

__
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] web site down?

[KENT TRIMBLE]

Back up in Missouri.


__
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] web site down?

[Dick Grolleman]

Not working in Europe.

73 de Dick PA3FQA

-Oorspronkelijk bericht- 
From: Rose 
Sent: Sunday, August 7, 2016 6:43 PM 
To: Elecraft Reflector 
Subject: Re: [Elecraft] web site down? 


Working OK in SW Montana at 10:45 AM
__
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 groll...@planet.nl

__
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] web site down?

[Rose]

Working OK in SW Montana at 10:45 AM
__
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] web site down?

[Bill Hammond via Elecraft]

It must be a regional  issue again with Verizon (has happened before).  Working 
fine here with AT U-Verse in Dallas.
73,
Bill-AK5X



> On Aug 7, 2016, at 7:50 AM, David F. Reed  wrote:
> 
> I went this morning to try to see if there were any microcode updates, and at 
> first, I could only get the front page, so I thought I'd try later... when I 
> did, not even that would come up.
> 
> Is anyone else having the same problem? Know what's going on?
> 
> Thanks & 73 de W5SV - Dave
> 
> __
> 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 wham...@aol.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] web site down?

[Clay Autery]

Down here too as of 1600 Z.

__
Clay Autery, KY5G
MONTAC Enterprises
(318) 518-1389

On 8/7/2016 7:57 AM, Roy Koeppe wrote:
> Yas,
> Down here too.
>
> 73,   Roy K6XK
>
>

__
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] Antenna Question

[Don Wilhelm]

Clipping a 17 foot wire to the top may be easier than adding an inductor.
Add at least one 33 foot counterpoise wire - or extend one of the 20 
meter counterpoise wires with another clip-on 17 foot wire.


73,
Don W3FPR

On 8/7/2016 11:32 AM, j...@kk9a.com wrote:

That is a huge mismatch. Assuming that the portable 20m vertical is easily
assessable I would just clip on an inductor at the base to make it resonant
on 40m.  If you have elevated radials you would have to put one there also
or just lay the radials on the ground.

John KK9A

[Elecraft] [OT] Antenna Question

rick jones n3ikq
Sat Aug 6 22:58:39 EDT 2016

Ok sorry for not providing enough info! Consider this scenario: I have a
portable vertical with 4 counterpoise wires that is resonant on 20. Lets say
I want to tune the antenna up on 40. I can have a tuner right at the base of
the antenna OR I can just use a balun at the base of the antenna and use the
built in ATU in the K3. Is there a difference in how much power is getting
to the antenna? I assume the tuner at the base is the best option which
always makes me doubt the usefulness of having an ATU built in to a rig in
terms of getting the most power to the antenna. Am I on the right track?
Thanks! Rick



__
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: Annecke ATU wanted

[Phil Wheeler]

Ah, but how many carry the charger while hiking, 
David? ;-)


Phil W7OX

On 8/7/16 12:05 AM, David Andrews wrote:

I'm looking for an Annecke balanced (symmetrical) ATU as much for its beauty
as its functionality! I know they're rare but does anyone know of one that
might be for sale? And, are we really making progress? The charger for the
KX2 battery is almost as big as the KX2 itself.

73

David G4CWB


__
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] Antenna Question

[john]

That is a huge mismatch. Assuming that the portable 20m vertical is easily
assessable I would just clip on an inductor at the base to make it resonant
on 40m.  If you have elevated radials you would have to put one there also
or just lay the radials on the ground.  

John KK9A

[Elecraft] [OT] Antenna Question

rick jones n3ikq 
Sat Aug 6 22:58:39 EDT 2016

Ok sorry for not providing enough info! Consider this scenario: I have a
portable vertical with 4 counterpoise wires that is resonant on 20. Lets say
I want to tune the antenna up on 40. I can have a tuner right at the base of
the antenna OR I can just use a balun at the base of the antenna and use the
built in ATU in the K3. Is there a difference in how much power is getting
to the antenna? I assume the tuner at the base is the best option which
always makes me doubt the usefulness of having an ATU built in to a rig in
terms of getting the most power to the antenna. Am I on the right track?
Thanks! Rick

__
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] web site down?

[Roy Koeppe]

Yas, 


Down here too.

73,   Roy K6XK

__
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] web site down?

[David F. Reed]

I went this morning to try to see if there were any microcode updates, 
and at first, I could only get the front page, so I thought I'd try 
later... when I did, not even that would come up.


Is anyone else having the same problem? Know what's going on?

Thanks & 73 de W5SV - Dave

__
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] Antenna Question

[Ken]

Rick,

You have been getting very good answers.  You are right, the internal 
ATU helps match the rig to the antenna and/or loss is negligible when 
you feed the antenna directly or with low loss line (open wire).


However, I have operated with bad setups and still made contacts.  I 
actually used a low 80m inverted vee (20' at center, 6' at the ends) on 
160 and made a few digital contacts.  I figure that  antenna was 1% 
efficient and 99% loss!   And I used a similar 40m inverted vee on 30m 
and managed to work a VK station via JT-65.  IDK maybe that setup was 
25% efficient.


A modern rig with an ATU makes the rig more like the boatanchors of the 
past that  were more flexible in what they load.  My old Viking II will 
load just about  anything and I tried some pretty terrible pieces of 
wire for antennas.   The only thing it ever failed to load was a 3 ft 
metal fishing  poleon 160m!


73,
Ken WA8JXM

On 8/6/16 11:57 PM, rick jones via Elecraft wrote:

OK a very good reality check when you look at the numbers! So I'm still trying to figure out the 
usefulness of a built in tuner. Two situations come to mind: You have no feedline and are driving a 
wire right out of your rig with a counterpoise (KX3 portable operations) OR you are using it to 
just "touch up" the load on the PA from an antenna that is close to resonance. I would 
hope that a good Elmer would point out that a built in ATU does nothing more then keep your PA 
happy but does nothing toward getting out a good signal AND that if a tuner is necessary, a remote 
one is a better choice. Thanks for your patience everyone while I get these concepts 
"right". Other forums would not have been as accommodating.


__
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] Common mode chokes

[Dave Cole]

On Sun, 2016-08-07 at 15:50 +1000, Gary wrote:
> Hi,
> I have an inverter generator producing S9 noise on 3.5Mhz, and S7
> noise on 7Mhz. Higher frequencies are clear.
> If I were to use a trifilar wound choke on the lead from the
> generator, what would be the best mix...43, 77 or?
> I can source ferrite cores here in VK, whether I can obtain what I
> will need is unknown but likely. Failing that, Mouser?
> I spent a lot of time searching the web but unsure still.
> If the learned group could help out with advice it will be greatly
> appreciated.
> 
Hello Gary,

I have had good luck using mix31 material in the FT-240-31
configuration.  

See:
http://www.fair-rite.com/design-tools/materials/

For an explanation of what each mix does, also see:
http://audiosystemsgroup.com/RFI-Ham.pdf

and:
http://audiosystemsgroup.com/SAC0305Ferrites.pdf

and:
http://www.karinya.net/g3txq/chokes/

for more information.
-- 
73's, and thanks,
Dave (NK7Z)
For software/hardware reviews see:
http://www.nk7z.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] [OT] Antenna Question

[Jim Brown]

On Sat,8/6/2016 7:58 PM, rick jones via Elecraft wrote:

Ok sorry for not providing enough info! Consider this scenario: I have a 
portable vertical with 4 counterpoise wires that is resonant on 20. Lets say I 
want to tune the antenna up on 40.


Rick,

You're asking the wrong questions. The best solution to your problem 
involves changing the antenna!  When you want to operate on 40 (or 30), 
improvise a mechanical solution to make the antenna longer. Study the 
ARRL Antenna Book and the ARRL Handbook so that you better understand 
how antennas work. Another fundamental principle -- the smaller the 
coax, the greater the loss. The SHORTER the coax, the less the loss. 
RG58 is BAD, because it's small. RG8X is better, because it's bigger. 
RG8 is even better, because it's even bigger.


And, as Wayne has observed, we don't need "built" or "purchased" 
antennas for portable/backpacking use. Throw a wire into a tree, or 
support it vertically, connect it to the center conductor of the coax 
connector at the output of the rig. Try to get it close to a quarter 
wave, but don't lose sleep if it isn't real close. Connect one or more 
wires to the chassis of the rig to act as a counterpoise. Don't know 
what that word means? Look in the ARRL Handbook. Try to make those wires 
close to a quarter wave. Don't lose sleep if they aren't. Fire up the 
radio, activate the tuner, make it tune, and call CQ. We don't need no 
stinkin' coax!


The great small club of which I was a member in Chicago hosted a QRP 
night every year. We set up in a "forest preserve" -- local park -- and 
everyone brought their rig and antennas. I brought a K2, battery, a 
couple of lengths of #18 wire, and a telescoping fiberglass pole. I 
taped one wire to the pole, shoved it into space between the parts of a 
picnic table so that it was somewhere between horizontal and vertical, 
and connected it to the center of the coax connector on the K2. I 
connected another length of wire to the chassis, and laid it on some 
weeds. I fired up on 30M and made a half dozen QSOs, AND broke a pileup 
from a station in the Caribbean.


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: Annecke ATU wanted

[David Andrews]

I'm looking for an Annecke balanced (symmetrical) ATU as much for its beauty
as its functionality! I know they're rare but does anyone know of one that
might be for sale? And, are we really making progress? The charger for the
KX2 battery is almost as big as the KX2 itself.

73

David G4CWB

 

__
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] Antenna Question

[Vic Rosenthal 4X6GP]

A lot depends on the band. For example, your 20m vertical would have an 
SWR of only 8:1 on 17m. Loss with 50' of RG-58 would be about 2 dB. 
That's not insignificant, but a lot better than not being able to 
operate on 17m at all. The built-in K3 tuner would have no trouble 
matching it.


I am actually using a 20m dipole on 40. But my feedline is short (34') 
and it is 600-ohm open wire line. SWR is something like 85:1, and I am 
living with a loss of about 3 dB because it is a compromise solution 
that gets me a 7-band antenna in limited space.


73,
Vic, 4X6GP
Rehovot, Israel
Formerly K2VCO
http://www.qsl.net/k2vco/

On 7 Aug 2016 06:57, rick jones via Elecraft wrote:

OK a very good reality check when you look at the numbers! So I'm
still trying to figure out the usefulness of a built in tuner. Two
situations come to mind: You have no feedline and are driving a wire
right out of your rig with a counterpoise (KX3 portable operations)
OR you are using it to just "touch up" the load on the PA from an
antenna that is close to resonance. I would hope that a good Elmer
would point out that a built in ATU does nothing more then keep your
PA happy but does nothing toward getting out a good signal AND that
if a tuner is necessary, a remote one is a better choice. Thanks for
your patience everyone while I get these concepts "right". Other
forums would not have been as accommodating.
__
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
k2vco@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] Common mode chokes

[Jim Brown]

On Sat,8/6/2016 10:50 PM, Gary wrote:

I spent a lot of time searching the web but unsure still.


k9yc.com/RFI-Ham.pdf  See the Choke Cookbook and follow the guidelines 
for the bands where you have noise, and for coax the size of the power 
cable. Place the choke as close as possible to the generator. Also study 
this slide show for a talk I did several years ago about this to our 
local contest club.


http://nccc.cc/pdf/CQP-RFI2013-2.pdf

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