mainetrunk
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The Marine Patrol did it's radio test just now, they seem to have the identifier squelch. That's where you key up, and give an I.D Thats what I call it..They must be using a simplex mode. I can only hear the dispatcher..
New Hampshire Marine Patrol gearing up
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ecps92
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mainetrunk
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Sorry, 159.150--nac 829
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P25 always carries an ID on the transmission; unlike analog which requires a MDC or other quick data burst to identify the radio.
Were you able to see the ID somehow? There is a way on a few scanners to see it, but you have to program it a certain way (the newer 396 may be only models out that can do it, but not sure).
mainetrunk
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I was told by an analog enthusiast, you cannot do that..But, If possible, I will do it.. Who has the dirt?
If you mean an ID that tells you what radio you're using, you sure can. Motorola calls it MDC. Others have various names. If you listen to an analog radio and there is some sort of Squwak, DTMF beep or similar, thats the ID. In addition, if you set it up, you can alert a speciifc radio, check to see if it's on, send an emergency signal and even send short messages like Responding, On Scene, etc. The ID is not present through 100% of the transmission like digital. But it can all certainly be done.
Now on a newer 396, you can only decode a P25 or trunked unit ID. Trunked is programmed by system (enable Icall, etc). In P25, the system has to be set up as a Single Frequency P25 trunked system. I've tried it, but it's not really worth doing it to me because it changes the way the scanner functions and you can miss traffic.
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