On Wed,2/18/2015 11:25 AM, Chuck Smallhouse wrote:
I don't even allow any computers to be on when performing 2M EME operations, due to the residual broad band noise and birdies emitted by most .
Yes, that's a real problem. You may do better with older computers. My T2x and T4x-series Thinkpads will run (but won't charge) on 12VDC, which eliminates any noise from the switching power supply, but it doesn't help with noise radiated directly by the laptop. Newer computers seem to be noisier than these older ones. We discovered that on 6M/2M grid trip last fall. The T43s were quiet enough, but my partner's much newer one was pretty bad.
73, Jim K9YC ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [email protected]
