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NAC code verses CWID?

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mtsaltas

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I have been out of the business for about ten years and I went from the Federal side to Commercial. My question is what is the difference between a NAC code and a CWID?
 

ecps92

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I have been out of the business for about ten years and I went from the Federal side to Commercial. My question is what is the difference between a NAC code and a CWID?
NAC for P25 is just like PL or DPL in the Analog days

CWID = the Morse Code transmission, usually in No PL Mode aka CSQ that some agencies/amateur and GMRS will perform behind the scene to ID the agency/users - not many FEDS do this
 

ElroyJetson

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Another way to put it: NAC, Network Access Code, applies to P25 digital voice communications, and the NAC is the digital equivalent of CTCSS or PL codes. You will only hear the NAC coded transmission your radio is programmed to hear, while not hearing other transmissions that have different NAC codes.

CW ID is the analog morse code station identifier that is used to identify the transmitting station for purpose of FCC identification compliance. It's just station identification.

Technically speaking, not even police or federal users are exempt from station identification requirements so even public safety systems should be broadcasting station ID messages, whether in voice or CW mode, every so often, on each channel in use.
 
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