[Elecraft] Tips on setting transmit drive for PSK31

[Gordan Hribar]

Hello,
 
I am also just testing PSK on K3 with Microham keyer using Data A mode and get different results.. Fist think is if you proper adjust level from sound card that ALC meter show 4 bars and 5 flickering on 1500Hz means that every time when you change listen channel needs to re-adjust Mic gain to get good ALC level.. So, if you on highest freq. you will overdrive K3 but if you goes little down maybe you can not drive correctly K3 for require power... 
Please your opinion!
 
73,
e72x - Gordan

--- On Fri, 9/4/09, Bob Cunnings <bob.cunnings at gmail.com> wrote:


From: Bob Cunnings <bob.cunnings at gmail.com>
Subject: Re: [Elecraft] Tips on setting transmit drive for PSK31
To: Elecraft at mailman.qth.net
Date: Friday, September 4, 2009, 6:20 AM


A while back this was addressed by Lyle in this post:

http://n2.nabble.com/K3-Transmit-IMD-tp466326p466329.html

Whether or not it remains current I can't say.

Bob NW8L

>
> I'm curious about your statement that "the K3 will attempt to develop more power to maintain the power output level you have chosen" -
>
> Since PSK is an audio driven mode with a varying amplitude component,  linearity is very important.  What you are suggesting is that the K3 is highly non-linear and has infinite gain, i.e. it puts out X watts regardless of drive.
>
> I know that you don't mean that, so could you clarify?
>
> Wes  N7WS
______________________________________________________________
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft at mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html