[Elecraft] FW: K3

Steve Ellington n4lq at carolina.rr.com
Tue Apr 21 11:19:20 EDT 2009


I'm not 100% sure I understand the issue but think about it....If you are in 
CW mode and you have your power adjusted at 100 Watts then you switch to 
DATA A and adjust your sound card's output and or your MIC (Line in) control 
for an ALC (Not AGC) of a few squares on the meter, you will find yourself 
running 100 Watts in PSK31 mode. I really doubt if you intend to do this 
since it can cause excessive IMD plus put a strain on your K3's final 
amplifier. Also, you will find that just very slight changes in your sound 
card's output will affect your RF output. It might even creep up as some 
describe.
If you first load up in CW mode then reduce the PWR setting to 20 watts THEN 
go to DATA A an adjust for an ALC kick up of a square or so you will get 
your 20 watts output. You might find the RF output to be more stable this 
way too. Any rig will act like this.
Now when you go back to CW mode, you will have to increase your PWR back to 
100 Watts if you want full output.
Hope I'm making some sense here.
Steve Ellington
N4LQ at carolina.rr.com
----- Original Message ----- 
From: "d r" <wa1bxy at hotmail.com>
To: <elecraft at mailman.qth.net>
Sent: Tuesday, April 21, 2009 9:40 AM
Subject: [Elecraft] FW: K3




i have the 2.78 version installed and it does the same thing... i tried 
reloading the firmware and did not change... as far as modes i run all modes 
from sstv to hell, psk, rtty, olivia.. My agc settings vary for different 
modes, but just say on PSK i run the AGC to one line below max for the 
threshold. I am using the Computer sound card into the line in line out... 
It works fine when i go to CW and key the radio and get the full power out 
then it i will do the full 100+w on data... hope this explains it a little 
better..
From: wa1bxy at hotmail.com
To: elecraft at mailman.qth.net
Subject: K3
Date: Mon, 20 Apr 2009 21:48:31 -0400










From: wa1bxy at hotmail.com
To: elecraft at mailman.qth.net
Subject:
Date: Mon, 20 Apr 2009 21:21:41 -0400








when operation the K3 in data mode i only get 50w of power out. but i 
noticed if
i am coming out of CW mode, or go to CW and hit the key and go back to
DATA i get full power output... what could be causing this?

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