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

[Tom Hammond]

Folks:

For your info, and the benefot of others who might be eventually installing 
one of the CW Tuning Indicators in their K2, here's a note from Vic (K2VCO) 
which you should read and heed!
73,

Tom   N0SS
---------------------

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