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 _______________________________________________ IRCA mailing list IRCA@xxxxxxxxxxxxxxxx http://montreal.kotalampi.com/mailman/listinfo/irca Opinions expressed in messages on this mailing list are those of the original contributors and do not necessarily reflect the opinion of the IRCA, its editors, publishing staff, or officers For more information: http://www.ircaonline.org To Post a message: irca@xxxxxxxxxxxxxxxx