[Elecraft] freq drift/front end KX3

[Wayne Burdick]

Hi Robert,

> ....i noticed that i had a 0.1 drift on the LCD readout VFOA. the  
> readout
> had dropped by that much.. in fact it did more then once....

This shouldn't happen if you adjust the VFO knob height so the bottom  
of the knob is lightly touching the felt pad. I'm also looking at a  
firmware change that would prevent the occasional 1-tic drift due to  
physical asymmetry in the knob. Maintaining contact with the felt pad  
would then be less of an issue.


> ....i removed all wires etc from the radio, and found that
> there was a lot of noise. even my buddy, who has been a ham for many
> years wondered what was happening. and what is happening.

The KX3's receiver has a lot of gain and excellent sensitivity. You  
may simply have gains set at max, in which case you'll hear background  
receiver noise. Typically you don't need the preamp on 160-40 meters;  
if you turn it off, most of the noise should go away, and if you then  
connect an antenna, atmospheric noise should completely dominate.

Let me know if you have further questions.

73,
Wayne
N6KR