Tones on NS frequency

DatedGore

Hello there.
Premium Subscriber
Joined
Jul 7, 2020
Messages
32
Location
Miami County, IN
So I live in Indiana. I listen to the NFS Huntington district. Freq: 160.380. Sometimes I hear tones that sound almost like dialing on a phone. Or just a single long tone. Anybody know what these mean? I can try to record some of them.
 

cbehr91

Member
Premium Subscriber
Joined
Jun 22, 2010
Messages
329
They're DTMF tones train crews and/or maintainers use to contact the dispatcher. Since the dispatchers typically don't monitor each and every base station on their territory, in very laymen's terms the tones activate on the dispatcher's console so they know to answer the radio on that base. The dispatcher doesn't hear the tones.
 
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