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Author Topic: strange computer tones on 14.0784  (Read 1481 times)

Offline radioreddz

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strange computer tones on 14.0784
« on: July 13, 2012, 0035 UTC »
been hearing strange musical tones maybe computer genarated on 14.0784 it's been repetative for an hour.
listning to the world on 200' of wire  assisted by a host of Hallicrafters,Icoms,Heath Kits and Radio Shack radios.  Stevo in Maryland

cmradio

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Re: strange computer tones on 14.0784
« Reply #1 on: July 13, 2012, 0304 UTC »
Is it from your own computer?

Computers throw trash all over the spectrum ::)

Peace!

Offline vinoul

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Re: strange computer tones on 14.0784
« Reply #2 on: July 13, 2012, 0752 UTC »
Probably JT65 digital mode.  Most use 14.076 + offset. 

Offline zackers

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Re: strange computer tones on 14.0784
« Reply #3 on: August 09, 2012, 1910 UTC »
Note 14078 is within the part of the amateur radio 20-meter band used for digital modes. You will find all sorts of digi modes between 14065 and 14095. I would suspect anything unusual in that part of the spectrum to be an amateur radio digital mode of some sort before I'd think of anything else.
East Central Illinois
TS-850S, 40 meter full-wave loop, various dipoles