It's pitch differentiation. 100 Hz away from 750Hz is a lot closer in pitch than is 100 Hz away from 400 Hz. 73 - Jim K8MR In a message dated 10/19/2013 5:36:58 P.M. Eastern Daylight Time, [email protected] writes:
When I was a kid 750 Hz was the most popular sidetone frequency. I have noticed a steady decrease in the consensus spot frequency over these 40 years. I don't know why. Maybe it has to do with hearing loss. Too many 'The Who' concerts. ______________________________________________________________ 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

