At 10:25 PM 2007-11-09 -0800, you wrote:
A case in point: I was tuning up an GR1225 repeater a while back when I noticed that the "receive" LED was blinking without any sound coming from the speaker. When I disabled the PL decode, I heard a slightly off-frequency carrier that was very weak, but just strong enough to open the squelch. After sniffing around with a portable scanner, I found that the source was my 900 MHz Athlon computer. My later 1.2 GHz computer did not radiate any carrier that I could detect, but a more recent 2.6 GHz computer does radiate a carrier- but it doesn't fall on any radio channels I use.
I am not a repeater or even a radio expert by any measurement. However my previous laptop emitted a lot of interference on one particular 2m repeater output frequency when I was doing a lot of work in a nearby city. Enough that I had to put my HT at least about 5 metres (15 feet for the metrically challenged cousins to the south) from my laptop. My current laptop doesn't interfere any any frequencies that I've noticed.
Tony
