Hi, That's almost certainly the 4th harmonic of an NTSC TV color burst oscillator. It should zero beat at 14318kHz. The one I hear (about S3) has multiple tones a few hundred Hz apart so the manual notch doesn't do a perfect job of eliminating it but it helps a lot. It's not necessarily from your own TV but it might be worth unplugging the TV and see if it disappears or at least weakens. Mine is not primarily from my own TV.
AB2TC - Knut Grant Youngman wrote: > > I've had a weak 'carrier' in this spot for years. Used to have to endure > it for the Icom Net at 14.317 in the old days. No clue what it is. > > Grant/NQ5T > > Sent from my iPhone > > <snip> > -- View this message in context: http://elecraft.365791.n2.nabble.com/14-316-help-tp6301361p6301460.html Sent from the Elecraft mailing list archive at Nabble.com. ______________________________________________________________ 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
