[Elecraft] 14.9V to KX1?

[Vic K2VCO]

ab4cz at comcast.net wrote:

>  If your shack is very near your antenna you may have more
> problems.  My antennas are high (around 60') and my radios are in the
> basement, so there is good isolation between the power supply and the
> antennas.

This is the key point!  Your antennas are probably fed with coax with 
baluns if needed, or properly installed balanced line.  In my opinion, 
most problems with switcher noise are caused by the noise energy being 
conducted to the 'ground' of the AC line, then flowing along the 
feedline in common mode, and then getting picked up by the antenna. 
Noise energy can also be radiated by house wiring, etc.  Things like 
verticals near the house, random wires, etc. are problematic for use 
with switchers (or around computers, etc.).
-- 
73,
Vic, K2VCO
Fresno CA
http://www.qsl.net/k2vco