[Elecraft] [K2] Microphonic 18.157.9 (+/-) ?

[Bill Coleman]

On Dec 11, 2010, at 8:36 PM, Eugene Balinski wrote:

>  I ran across an interesting thing with my K2.  I have a
> very pronounced microphonic at 18.157.9.  There is a
> carrier (birdie?) on that frequency and when I tap on the
> top of the radio, the tapping is clearly audible in the
> speaker.   
> 
>  Has anyone else noticed this ?

I don't remember the exactly frequency, but I believe I have a reverse-tuned birdie about this frequency on my K2. I say reverse-tuned because when you bump the dial, it moves in frequency more than the dial is bumped.

It's not terribly strong, so I ignore it. It is likely the result of mixing products within the K2, which doesn't surprise me if you find it to be microphonic.

Bill Coleman, AA4LR, PP-ASEL        Mail: aa4lr at arrl.net
Web: http://boringhamradiopart.blogspot.com
Quote: "Not within a thousand years will man ever fly!"
            -- Wilbur Wright, 1901