[Elecraft] K2 IF Alignment Question
Ian Stirling
g4icv at arrl.net
Sat Jul 1 20:25:11 EDT 2006
On Saturday 01 July 2006 00:57, SABorns at aol.com wrote:
> The peak when adjusting L34 during IF alignment is at the top rather than
> the l to 1 1/2 turns in mentioned in the manual. Has anyone else encountered
> this?
>
> 73 Steve K8IDN
Steve,
It seemed like that to me too. I used Spectrogram a couple
of days ago having read back to 1999 the Elecraft list
archives about tuning L34.
Mine behaves strangely. The noise decreases as it
approaches the top and then increases at some point, having
not reached the top. But screwing it in to lower it doesn't
decrease the noise. I have to turn it in a couple of times
until the noise is obvious, then unscrew it to the best
low noise I've seen and just believe it's the best - it
seems to be approachable only by unscrewing towards the top.
I read in the archives that some K2s need a 150 pF
capacitor in place of the current 180 pF.
It's not a well defined alignment procedure, especially
with the guru, Don Wilhelm saying,
" just set the slug at 1 turn from the top and let
it go at that"
Ian, G4ICV, AB2GR, K2 #4962
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