[Elecraft] Six meter birdies and CW norm/reverse

wayne burdick n6kr at elecraft.com
Wed Jan 7 13:22:38 EST 2009


wayne burdick wrote:

> 3. Specific birdies due to VHF harmonics can sometimes be shifted out
> of harm's way just by shifting the passband (SHIFT control) or
> selecting a different crystal filter. The reason for this is that it
> moves the synthesizer (1st LO).

I forgot to mention that in CW mode, a birdie due to high VHF/UHF 
signal mixing can often be moved or eliminated altogether by switching 
to CW REV (CW reverse, i.e. opposite-sideband-CW). The K3 works just as 
well either way, but CW REV moves the LOs and thus may move the birdie.

73,
Wayne
N6KR

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