[Elecraft] K2 Filter adjustment - jumpy BFO - Resolved

Kelly McDonald [email protected]
Wed Dec 17 20:18:01 2003


Hello again,

Thought I'd post the solution, just in case anyone has a similar
problem.

It turned out that I had R100 and R110 on the RF board swapped,
resulting in low voltages for the NE602 (U11). The High-end voltages
were close to 3v, rather than the 5v published in the back of the
manual.

This solved the problem listed below, as well as really improved RX
gain.

hope this helps someone later on,
Kelly
W4KPM
K2 #3879

On Mon, 2003-12-15 at 12:28, Kelly McDonald wrote:

> 
> However, when I go to adjust the bfo for the filters, it acts rather
> 'jumpy' when I tune below 4913.4, for example it will jump down to 4907
> and later even 4889 or so. Tuning it up higher (example 3914.1 for the
> cw rev) is nice and smooth and just as I would expect it.

-- 
Kelly McDonald <[email protected]>