[Elecraft] Amplifier tuning K3 (was QRQ QSK)

Tom W8JI w8ji at w8ji.com
Sat May 15 03:38:21 EDT 2010


A two-tone generator is OK for testing an amp on a spectrum 
analyzer for odd-order IM performance, but is one of the 
last things people should use for daily tuning of an 
amplifier.

The most desirable thing is something that has a very low 
average power and full or even slightly above full peak 
power pulse. Single tone is fine, so long as the peaks are 
at or slightly over the maximum power ever expected, very 
narrow in width, and fairly wide gaps with no power. We 
really want low duty cycle  pulses to tune with.

73 Tom



----- Original Message ----- 
From: "Greg" <n4cc at cableone.net>
To: <elecraft at mailman.qth.net>
Sent: Friday, May 14, 2010 10:38 PM
Subject: Re: [Elecraft] How is K3 QRQ QSK performance 50-100 
WPM?


> The K3 has a two tone oscillator built in that you can use 
> for tuning...  73
> de Greg-N4CC
>
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