Re: [Elecraft] KPA500 on 10Meters

[Larry Christensen]

The station is working as it should. I checked all the ideas. Still no joy. 
Turned it off and went to supper. I came back and turned everything on it 
worked as it should. 
Maybe just needed a reboot.  
Thank everyone for your ideas. 

Larry NA0F

Sent from my iPhone

> On Jan 25, 2022, at 4:23 PM, ncela...@scicable.com wrote:
> 
> 
> I have a K3,KAT500 and KPA500. I had a station on 10 Meters this afternoon 
> that I wanted to reach.
> 
> The KPA500 did not work on 10M as if it was in standby mode (it was not), the 
> KAT500 tuner didn't  tune either the K3 showed 1.0-1 5W all across the 10m 
> band but no relays clicks in the KAT500. I tested after this happened and 
> both work as expected on all other bands. It has been years since I used 10M. 
>  The firmware is current on all three units. 
> 
> Any thoughts or ideas.
> 
> TIA 
> 
> Larry NA0F
> 
> 
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[Elecraft] K4 R28 installed

[Bill Miner via Elecraft]

I do not have wired or optical fiber high speed internet service at my QTH.

My Verizon hot-spot device is equipped with a USB-C jack. I simply connected 
the Hot-spot device to one of the K4 USB jacks on the rear panel. After a short 
delay, I was able to download the new R28 directly from the Verizon hot-spot. 

The K4 is now up to date. Very simple to do.

Bill - K6WLM

Sent from my iPad
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[Elecraft] Elecraft will not be at Hamcation Feb 11-13

[Eric Swartz]

In an abundance of caution we made the hard decision today to cancel
Elecraft's participation at the Florida Hamcation show  (a little over two
weeks from today, 2/11-13).  This decision was made to protect the health
of our booth team that would have been at the show.

We will be exhibiting at the on-line QSO Today Ham Expo this March 12-13.
Their in-booth personal video interaction format looks to be much improved
from the prior show too :-) Please drop by and say hi!

Hopefully Covid will calm back down soon so we can get out to see everyone
in person. We miss you all and look forward to seeing you soon.

73,
Eric   WA6HHQ
*elecraft.com *
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Re: [Elecraft] KPA500 on 10Meters

[G4GNX]

I can’t remember where or exactly what the settings are, but between the 3 
pieces in use, it’s possible to set the KPA500 to stay in standby, per band. It 
was a long time back, but I remember setting mine so that I could not TX hight 
power on 6 metres, due to the antenna not being rated above 100W.

I hope that gives you some clues.

73,
Alan - G4GNX



> On 25 Jan 2022, at 22:21, ncela...@scicable.com wrote:
> 
> 
> 
> I have a K3,KAT500 and KPA500. I had a station on 10 Meters this afternoon 
> that I wanted to reach.
> 
> The KPA500 did not work on 10M as if it was in standby mode (it was not), the 
> KAT500 tuner didn't  tune either the K3 showed 1.0-1 5W all across the 10m 
> band but no relays clicks in the KAT500. I tested after this happened and 
> both work as expected on all other bands. It has been years since I used 10M. 
>  The firmware is current on all three units.
> 
> Any thoughts or ideas.
> 
> TIA
> 
> Larry NA0F
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Re: [Elecraft] KPA500 on 10Meters

[Rick NK7I]

Did the KPA500 show an asterisk (*) when key down?  If not, it's not 
seeing the PTT actions (key out).


If the KAT500 is content with the match, you'll only hear one fast 
kerchunk of the relays (test, happy, shaddup).  If it's not trying, it 
may not be seeing the PTT and/or RF.  (Has the K3 transmitter been 
calibrated lately?)


Reseat all the cables and verify the settings in the KAT500 for 10 meter 
operation (antenna choice); over time some minor corrosion can appear.


And make sure that the tuning output level of the K3 is set at 10-25 
watts (and shows output too).  Mine was set at 10 watts and consistently 
worked (now I use a K4, KPA1500 and a much better antenna, no tuner needed).


If CW, was VOX on?

GL,
Rick NK7I


On 1/25/2022 2:21 PM, ncela...@scicable.com wrote:



I have a K3,KAT500 and KPA500. I had a station on 10 Meters this 
afternoon that I wanted to reach.


The KPA500 did not work on 10M as if it was in standby mode (it was 
not), the KAT500 tuner didn't  tune either the K3 showed 1.0-1 5W all 
across the 10m band but no relays clicks in the KAT500. I tested after 
this happened and both work as expected on all other bands. It has 
been years since I used 10M.  The firmware is current on all three units.


Any thoughts or ideas.

TIA

Larry NA0F
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[Elecraft] KPA500 on 10Meters

[ncelarry]

I have a K3,KAT500 and KPA500. I had a station on 10 Meters this 
afternoon that I wanted to reach.


The KPA500 did not work on 10M as if it was in standby mode (it was 
not), the KAT500 tuner didn't  tune either the K3 showed 1.0-1 5W all 
across the 10m band but no relays clicks in the KAT500. I tested after 
this happened and both work as expected on all other bands. It has been 
years since I used 10M.  The firmware is current on all three units.


Any thoughts or ideas.

TIA

Larry NA0F
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Re: [Elecraft] Elecraft Digest, Vol 213, Issue 13

[David Deelstra]

"What did Schroedinger's cat think of the experiment?"

He was thinking "Out of the box".




--
This email has been checked for viruses by Avast antivirus software.
https://www.avast.com/antivirus

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[Elecraft] K4: RX Dynamic Range Optimization

[Victor Abell]

Why is the  MENU item "RX Dyn. Range Optimization"
unlocked and turned on when power is turned on, even if
it were  locked and tuned off when power was removed?

At R26 it was displayed as a multi-colored 'R' and now
at R28 it is displayed as "DR+".

Vic, W9RGB, K4D 0406
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Re: [Elecraft] K4HD Executive Summary Request

[John K9UWA]

Ditto from John K9UWA #0132 K4D awaiting the HD module.
thanks
73 John k9uwa


On 25 Jan 2022 at 15:08, gordon young wrote:

> Gentlemen,
> 
> Having ordered a K4D with the 3rd group (order 26415), when I expressed
> immediate interest in the K4HD module. 
> 
> Would you be able to provide a high level summary of the progress and current
> forecast for that particular piece of kit?  Of course I´d prefer to have it
> included and calibrated from the factory when the new toy box arrives.   
> 
> Thanks in advance!
> 
> Gord
> VE1GVY 

> Message delivered to k9...@arrl.net 

John Goller, K9UWA & Jean Goller, N9PXF 
Antique Radio Restorations
k9...@arrl.net
Visit our Web Site at:
http://www.JohnJeanAntiqueRadio.com
4836 Ranch Road
Leo, IN 46765
USA
1-260-637-6426

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Re: [Elecraft] K4HD Executive Summary Request

[Wayne Burdick]

Hi Gord,

The ongoing worldwide supply chain debacle has impacted K4HD module 
development. We’ve already redesigned PC boards twice to work around chip 
shortages.

We’ll keep everyone updated. 

Meanwhile, we’re hearing from those who took delivery of a K4D instead that 
performance in strong-signal conditions is excellent. 

73,
Wayne
N6KR



elecraft.com

> On Jan 25, 2022, at 11:09 AM, gordon young  wrote:
> 
> Gentlemen,
> 
> Having ordered a K4D with the 3rd group (order 26415), when I expressed 
> immediate interest in the K4HD module. 
> 
> Would you be able to provide a high level summary of the progress and current 
> forecast for that particular piece of kit?  Of course I’d prefer to have it 
> included and calibrated from the factory when the new toy box arrives.   
> 
> Thanks in advance!
> 
> Gord
> VE1GVY 
> KX3/PX3 owner
> K4HD Prospect 
> 
> Sent from my iPhone
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[Elecraft] K4HD Executive Summary Request

[gordon young]

Gentlemen,

Having ordered a K4D with the 3rd group (order 26415), when I expressed 
immediate interest in the K4HD module. 

Would you be able to provide a high level summary of the progress and current 
forecast for that particular piece of kit?  Of course I’d prefer to have it 
included and calibrated from the factory when the new toy box arrives.   

Thanks in advance!

Gord
VE1GVY 
KX3/PX3 owner
K4HD Prospect 

Sent from my iPhone
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[Elecraft] K1 Question

[Paul Kirley]

Tony K2MO asked:

I noticed that the VFO on my 4-band K1 doesn't tune above 14062 and
 21061.0 yet it tunes to 7068.6 on 40 meters. The tuning range on 30
 meters is 85 kHz (10077 to 10162) so I'm assuming the rig had the
 smaller tuning range crystal installed. Tuning range on 40 meters is:
 6986 to 7068.6.

So the question is: how can I shift the tuning range on 20 and 15 meters
 so I can tune above 062 and 061 on 14 and 21 MHz? The current tuning
 range is 13077 to 14062 on 20 meters and 20976 to 21061.0 on 15 meters.



I recommend that you download the K1 manual if you don't have one for your rig:
https://ftp.elecraft.com/K1/Manuals%20Downloads/E740016%20K1%20manual%20rev%20J.pdf
On page 38 of this manual is the information that you need.

First, the size of the tuning range is set by the choice of capacitor C2 on the 
RF board.  This also affects the tuning rate and possibly the drift rate.

Second, the lower end of the tuning range is set by squeezing or spreading the 
turns on the big toroid L1.  I think that the VFO tunes backward (K1 output up 
as VFO down), so you may want to squeeze the turns.  But read the manual to be 
sure.  Keep in mind that page 38 of the manual is part of the assembly 
instructions; you may need to remove some parts of the K1 (like the band 
module) before adjusting L1.  Or maybe you can tweak L1 a bit, then check the 
effect on the K1's output frequencies and repeat.

Third, per-band differences in output frequencies result from differences in 
the frequencies of the crystals on the band module from their nominal values.  
I believe that these are unavoidable.  If you want to cover the bottom edge of 
each band, your measurements suggest that 40 meters is the band to watch.  If 
that's not a concern, you may be able to move the frequency coverages up more 
than 14 kHz.

73, Paul W8TM

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