trunked signals

Joined
Sep 1, 2009
Messages
33
#1
I believe the noise I hear on a regular scanner are trucked signals ,some sound like a running diesel engine ,others like an gasoline engine ( revving up ) with a knock in it. I guess this is the data , but exactly how is this data hidden in these sounds.
I've heard digital signals before on the radio and they sound like data ,not a car or truck engine ?

What makes this data sound this way ... I am hearing it on an analog scanner.


Al
 

jwt873

Member
Premium Subscriber
Joined
Dec 1, 2015
Messages
821
Location
Woodlands, MB
#3
What frequencies? There are a lot of digital signals that aren't trunked. When you say "running engine" sound, digital paging comes to mind.
 
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