On 10/31/2010 11:44 AM, Kok Chen wrote: > The same SNR argument applies to how noisy his local RF environment is > compared to your environment
This is often the dominant factor. When I lived in a Chicago residential neighborhood, my S-meter rarely got below S7 on band noise with narrow CW filters. Here in the Santa Cruz Mountains, it's often more like S3. If you assume 4 dB per S-unit (typical for most radios), that's 16 dB. That means if the other guy has that S7 noise level, I've got to run 1,000 watts to be heard as well as I would hear 25 watts from him. 73, Jim K9YC ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
