Re: [Elecraft] K4: panadapter directional coupler required?

[Marty Koszewski]

Hi Brian,
I understand that the panadapter is built in to the K4.  

The directional coupler added additional functionality to the P3.  It gave real 
power output and SWR,  as well as an output waveform.  All functions I use 
today.  I was wondering if that functionality is avail in K4 since there is no 
input from the feedline if using an amp or external tuner.  

Thanks. 
73,
Marty - N1VH 


On Jun 3, 2019, at 4:14 PM, Brian Broggie  wrote:

The panadapter is built in to the K4's display. See it on our website!

Brian, W6FVI


  

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[Elecraft] K3S - N1MM+ CW Message Transmit Decode Question

[Marty Koszewski]

Thanks Rich.  I appreciate the detailed response.  Makes sense to me now.
73,
Marty - N1VH


On 8/18/2017 1:05 PM, Richard Ferch wrote:

> Any idea why the K3S decodes the CW message transmission using the CAT
> command, but not the MYCALL command?  I have verified that the radio is
> transmitting in both cases.  I have tried various decode threshold values
as well.

First off, when you use the CAT command the radio is not decoding
transmitted CW at all, it is simply echoing the ASCII text you sent to it
in the command.

Second, the only transmitted CW the K3/K3S can decode is keying from the
paddle input to the radio's internal CW keyer. Keying input from a straight
key, a computer or an external keyer, whether it comes into the radio on
the DTR line of the radio control port or via the CW Key jack, does not get
decoded.

73,
Rich VE3KI


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[Elecraft] K3S - N1MM+ CW Message Transmit Decode Question

[Marty Koszewski]

I have my K3S set up in N1MM+ as suggested on pages 187 & 188 of the Fred Cady 
manual (38400,N,8,1,CW,Always Off).  The radio is set to RS232 = USB and 
PTT-KEY = OFF-dtr.

CW Transmit Message Decode Behavior: (.mf file)
When the function key (eg. f4) is set to '{MYCALL}', the radio transits as 
expected, but does NOT decode the CW mycall transmission.
When  the function key is set to  ‘{CATA1ASC KY *;}’, the radio transmits and 
DECODES the CW mycall transmission.
I get similar results for all of the function keys. Transmit decodes with CAT 
command, does not the standard command.

Any idea why the K3S decodes the CW message transmission using the CAT command, 
but not the MYCALL command?  I have verified that the radio is transmitting in 
both cases.  I have tried various decode threshold values as well.


Thanks.
73,
Marty - N1VH
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[Elecraft] K3S - no output power from 14.180 - 14.220

[Marty Koszewski]

I just received my K3s back from service (IMD updated TX boards).   There is no 
output power on 20M from 14.180-14.220.  All other bands  and the rest of the 
20M band appears to be ok (regardless of mode selected).

Is there a setting that I missed?  What would cause this odd behavior.   I hope 
I don’t have to send it back for another 6 weeks to get additional service.

Thanks.

73,
Marty - N1VH

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Re: [Elecraft] K-Pod MCU 1.09 'F3 Power Up' Question

[Marty Koszewski]

Hi Fred,
I re-installed the K-Pod and K3S firmware.  The K-Pod is now working as it is 
supposed to.  I must have had a ‘glitch’ in the original K-Pod firmware 
upgrade.  The ‘F3’ at power up does the correct ‘divide by 4’.  The K-Pod now 
resets itself when I cycle the power on the radio without the need to 
disconnect the K-Pod.  (My K-Pod is powered through the data port - I did the 
resistor upgrade to eliminate the need for a power cable).

Thanks again for your help.

Marty - N1VH


On Nov 23, 2016, at 4:47 PM, Cady, Fred <fc...@montana.edu> wrote:

That is interesting.  I have my KPod powered from the K3 12v output so have 
been turning both off and on so haven't noticed the intermittents.
In any event, the KPod is great!
Cheers,
Fred



From: Elecraft <elecraft-boun...@mailman.qth.net 
<mailto:elecraft-boun...@mailman.qth.net>> on behalf of Marty Koszewski 
<mtkos...@gmail.com <mailto:mtkos...@gmail.com>>
Sent: Wednesday, November 23, 2016 12:42 PM
To: elecraft@mailman.qth.net <mailto:elecraft@mailman.qth.net>
Subject: [Elecraft] K-Pod MCU 1.09 'F3 Power Up' Question
 
Hi Fred,
Thank you for your detailed response.  I am able to get my K-Pod to behave as 
you described.  However, the 'F3 power up' seems to work intermittently.  I 
must cycle the radio and K-Pod to get the tuning rate change to take place. 
Re-powering the K-Pod only does not seem to consistently change the tuning 
rate. 
I am looking forward to the firmware upgrade that will allow the K-Pod to have 
the same tuning rate as the K3S (instead of 1:2 or 1:4).

Happy Thanksgiving!
Marty - N1VH

-

Hello Marty,

I don't remember seeing any response to your question so here is what I have 
found with my KPod:

The K3's tuning rate is determined by VFO CTS, FST and CRS and there are two 
fine rates (1 Hz and 10 Hz) and a course rate (100 Hz) depending on the 
FINE/COARSE switch.

So when my CTS is 200, the K3 tunes 200 Hz, 2 kHz and 10 kHz per revolution.

The normal power-on KPod tunes 100 Hz, 1 kHz, and 5 kHz per revolution.  (it 
divides by 2).

Holding F3 when power-on the KPod tunes 50 Hz, 500 Hz and 2.5 kHz per 
revolution (divide by 4).


Cheers,

Fred KE7X


For all KE7X Elecraft books, see www.ke7x.com <http://www.ke7x.com/>< 
http://www.ke7x.com 
<http://www.ke7x.com/> <http://www.ke7x.com/ <http://www.ke7x.com/>>>

(A macro programming book is coming soon.)





From: Elecraft http://mailman.qth.net/> 
<http://mailman.qth.net/mailman/listinfo/elecraft 
<http://mailman.qth.net/mailman/listinfo/elecraft>>> on behalf of Marty 
Koszewski http://gmail.com/><http://mailman.qth.net/mailman/listinfo/elecraft 
<http://mailman.qth.net/mailman/listinfo/elecraft>>>
Sent: Monday, November 21, 2016 3:18 PM
To: elecraft at mailman.qth.net <http://mailman.qth.net/> 
<http://mailman.qth.net/mailman/listinfo/elecraft 
<http://mailman.qth.net/mailman/listinfo/elecraft>>
Subject: [Elecraft] K-Pod MCU 1.09 'F3 Power Up' Question

I installed the latest K-Pod firmware - MCU 1.09.   The release notes state 
"Adds a power-on feature: if the F3 button is held during power up the K-Pod 
encoder uses a divide by 4 scaling factor."I do not notice any difference 
when powering up holding the F3 button.

What is the 'F3' power-up supposed to do?  I thought it might address the 4X 
VFO knob speed difference between the K3 and the K-Pod (my K3s VFO is still 4X 
faster than the K-Pod).

Thanks.

Marty - N1VH


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[Elecraft] K-Pod MCU 1.09 'F3 Power Up' Question

[Marty Koszewski]

Hi Fred,
Thank you for your detailed response.  I am able to get my K-Pod to behave as 
you described.  However, the 'F3 power up' seems to work intermittently.  I 
must cycle the radio and K-Pod to get the tuning rate change to take place. 
Re-powering the K-Pod only does not seem to consistently change the tuning 
rate. 
I am looking forward to the firmware upgrade that will allow the K-Pod to have 
the same tuning rate as the K3S (instead of 1:2 or 1:4).

Happy Thanksgiving!
Marty - N1VH

-

Hello Marty,

I don't remember seeing any response to your question so here is what I have 
found with my KPod:

The K3's tuning rate is determined by VFO CTS, FST and CRS and there are two 
fine rates (1 Hz and 10 Hz) and a course rate (100 Hz) depending on the 
FINE/COARSE switch.

So when my CTS is 200, the K3 tunes 200 Hz, 2 kHz and 10 kHz per revolution.

The normal power-on KPod tunes 100 Hz, 1 kHz, and 5 kHz per revolution.  (it 
divides by 2).

Holding F3 when power-on the KPod tunes 50 Hz, 500 Hz and 2.5 kHz per 
revolution (divide by 4).


Cheers,

Fred KE7X


For all KE7X Elecraft books, see www.ke7x.com<http://www.ke7x.com 
<http://www.ke7x.com/>>

(A macro programming book is coming soon.)





From: Elecraft http://mailman.qth.net/mailman/listinfo/elecraft>> on behalf of Marty 
Koszewski http://mailman.qth.net/mailman/listinfo/elecraft>>
Sent: Monday, November 21, 2016 3:18 PM
To: elecraft at mailman.qth.net 
<http://mailman.qth.net/mailman/listinfo/elecraft>
Subject: [Elecraft] K-Pod MCU 1.09 'F3 Power Up' Question

I installed the latest K-Pod firmware - MCU 1.09.   The release notes state 
"Adds a power-on feature: if the F3 button is held during power up the K-Pod 
encoder uses a divide by 4 scaling factor."I do not notice any difference 
when powering up holding the F3 button.

What is the 'F3' power-up supposed to do?  I thought it might address the 4X 
VFO knob speed difference between the K3 and the K-Pod (my K3s VFO is still 4X 
faster than the K-Pod).

Thanks.

Marty - N1VH


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[Elecraft] K-Pod MCU 1.09 'F3 Power Up' Question

[Marty Koszewski]

I installed the latest K-Pod firmware - MCU 1.09.   The release notes state 
"Adds a power-on feature: if the F3 button is held during power up the K-Pod 
encoder uses a divide by 4 scaling factor.”I do not notice any difference 
when powering up holding the F3 button.

What is the ‘F3’ power-up supposed to do?  I thought it might address the 4X 
VFO knob speed difference between the K3 and the K-Pod (my K3s VFO is still 4X 
faster than the K-Pod).

Thanks.

Marty - N1VH


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Re: [Elecraft] RFI on K3s

[Marty Koszewski]

I had the same issue.  It was caused by my Powerwerx SS-30DV.   After trying a 
number of things to mitigate the noise, I ended up replacing the power supply 
with a Samlex SEC 1235M.  Noise gone.  Problem solved.

Marty - K1MTK


---




Message: 20
Date: Sun, 19 Jun 2016 23:55:59 -0500
From: Clay Autery 
To: Elecraft Reflector 
Subject: [Elecraft] RFI on K3s
Message-ID: 
Content-Type: text/plain; charset=utf-8

I am seeing a repetitive RFI source every 34kHz from somewhere less than
20MHz thru 30MHz plus...

See attached image.  The amplitude alternates high/low every other
appearance.  The overall amplitude is higher or lower depending on the
location within the spectrum  Almost a sine wave function with a
VERY long period.

Anyone want to hazard a guess as to what is causing it?  I disco'd every
switch-mode power supply in the shack and adjacent rooms (couldn't do
the whole house as the XYL was home) EXCEPT my Powerwerx SS-30DV PS
running the K3s/P3.

Don't have a battery to run the radio on right now...



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



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Re: [Elecraft] SS30DV feedback

[Marty Koszewski]

I have similar spur issues, approx 30khz apart, with the SS30DV on 40 & 80 
meters as well.   I do not get any noise from my Samlex 1235M using the same 
power cabling and same installation location.  I will try the suggested toroid 
solution to see if I can get rid of the spurs.   I do prefer the connectors of 
the SS30DV.

Marty, K1MTK



On Oct 2, 2015, at 11:50 AM, Rick Stealey  wrote:

We had spurs all over the 80 meter band here on the K3S station that is being 
run as a remote, approximately 30 khz apart.   The main station 50 ft away (but 
on different antennas spaced 100 feet) had no noise.  At first we suspected the 
OCF dipole, then the networking boxes, then the laptop.  Put a gelcel in place 
of the PS and voila!So it was the SS30 PS.  5 turns of the K3 power cord around 
a type 31 2.4 inch diameter toroid took all the noise right out.
Rick  K2XT
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