[Elecraft] [Fwd: Re: SHIFT pitch]

[Bill Johnson]

Don, where do I find the AF voltmeter display?


73,

Bill
K9YEQ
K2 #35; KX1 #35; K3 #1744; mini mods


-----Original Message-----
From: elecraft-bounces at mailman.qth.net
[mailto:elecraft-bounces at mailman.qth.net] On Behalf Of Don Wilhelm
Sent: Tuesday, January 27, 2009 1:17 PM
To: 'Elecraft'
Subject: [Elecraft] [Fwd: Re: SHIFT pitch]

Hi everyone,

Lyle reminded me that the K3's built-in  AF voltmeter display can be 
used as a reliable indicator of audio amplitude - it is a true RMS 
reading indication.  He also indicated that a steady carrier can easily 
be used rather than the wideband noise source.  If you use an on-the-air 
signal, be careful not to confuse amplitude changes caused by the filter 
with QSB on the signal.  A QRP transmitter feeding a dummy load would 
probably serve as a steady source of carrier if you do not have a signal 
generator available.

There are several ways to do a relative gain evaluation, and I mentioned 
only the way I am more used to using - I just didn't think of the others 
initially.

73,
Don W3FPR