Len Hyde wrote:
Has anyone figured out how to DX in the same room with one (without an
external antenna, of course.) Mine causes a lot of QRM. It would be great if
I could use the computer as a database, etc. while DXing, but I can't.
Are laptops as bad as towers?
Depends on the laptop, and the LCD display. Some of the laptop switching
power packs are the worst offenders.
I find that a fully shielded metal desktop case and a good quality LCD
monitor are much quieter than any of the laptops I have tried. Too many
of the commercially built desktops and all of the laptops I've seen have
mostly plastic cases.
Antec makes several metal cases that help a lot, as do the better
filtered switching computer power supplies. A cheap power supply can
create a lot of noise.
Shielded CAT5 cables as well as a metal cased Ethernet switch feeding
the computer helps too.
Rick Kunath
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