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General Scanning Discussion - For general questions not specific to a model of scanner or general discussion of use of a scanner. Manufacturer specific posts should be directed to the appropriate forums below and location specific posts should go in the appropriate regional forum..

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Old Yesterday, 9:12 PM
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Default What kind of signal is this?

Coming in USB - 4.9830 MHz


https://soundcloud.com/user-437184959/49830a/s-tlFTA

Last edited by dragon48; Yesterday at 9:20 PM..
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Old Yesterday, 9:33 PM
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75 baud 850 Hz shift RTTY.
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Old Yesterday, 9:35 PM
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Quote:
Originally Posted by nd5y View Post
75 baud 850 Hz shift RTTY.
Cool - what kind of data is usually sent in these types of transmissions?

Can my snippet be decoded?
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Old Yesterday, 9:46 PM
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If you can determine the exact RF center frequency between the two tones, not the display frequency (SSB suppressed carrier frequency), you could look it up and maybe find it listed somewhere if it is an aviation weather broadcast (VOLMET) or maritime coast station. If you can't find the frequency listed it is probably military.

Any program that decodes Baudot RTTY should be able decode it if you tune it in properly but unless it is a weather broadcast it is probably encrypted.
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