[Elecraft] QUESTION to the Group re. where to install the CW Tuning Indicator

Vic Rosenthal vic at rakefet.com
Tue Sep 21 10:39:27 EDT 2004


Tom Hammond wrote:

> A question has been raised which I cannot (yet) answer. Though I hope to 
> be able to answer it soon...
> 
> If you installed the CW Tuning Indicator PC board in a fully-appointed 
> K2 (KPA100,KSB2/KNB2/KDSP2), WHERE did you wind up placing it?

I had one installed some time ago (the original KR5L circuit), and I want to 
mention where NOT to put it:  absolutely do not put it near the plug for the 
counter probe!  I had mine attached with double-sided tape on the side panel 
(this was before I had the DSP, so it probably wouldn't fit there now). 
Harmonics of the square-wave oscillator in the chip were picked up by the 
counter circuit, which made the readings jump all over the place when I tried to 
do CAL FIL.  I went absolutely NUTS before figuring out what the problem was.

So, assuming that you can find a place to put it, check to make sure that it 
doesn't cause RFI to anything.

-- 
73,
Vic, K2VCO
Fresno CA
http://www.qsl.net/k2vco



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