[SADXA] Birdies on the bands

[Tom Fagan]

Most likely its a switching power supply.  Just run clean power from a linear 
power supply and it should be fine.
 Tom Fagan K7DF
Section Manager Arizona
ARRL, the national association for Amateur Radio™ 




________________________________
From: W6XI <jdwothe at cox.net>
To: Undisclosed-Recipient:;@mailman.qth.net
Sent: Mon, January 10, 2011 6:29:52 AM
Subject: [SADXA] Birdies on the bands

All:

For your interest I just found the source of a couple of birdies that I have 
been listening to for years on 160 and who knows where else. Come to find out 
they were coming from the power supply for one of my HP printers in the ham 
shack. This one happened to have a in-line switching supply that put two birdies 
on 160 and I would imagine other bands that had a little higher noise level and 
were less noticeable.

In any event if you are having problems with birdies on the band you might check 
the printer supply. Unplugging it is the fix. Next step throw it away :-)

Jerry
W6XI
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