Iworked for years on 405 line TV transmitters. I had a notch of at least 40dB at 10.125khz. I was surprised how quickly it disappeared when 405 line TV closed down, to be replaced by a rolloff at 16kHz.
I now roll off much lower, and keep moving my default cw sidetone as it seems to produce a notch after a few contests, I'm currently at 650Hz but will try 700 again soon. Dave Cole <d...@nk7z.net> wrote: > > One of the most common forms of hearing loss starts at the high > > frequencies and works its way down with age, but that's far from > > universal. When one or more notches develop at certain frequencies, it's > > often the result of noise exposure at work. > > -- Brian D G3VGZ Yarm England ______________________________________________________________ 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 Message delivered to arch...@mail-archive.com
