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Patching Analog VHF Simplex to Trunked P25 for VFD Voice Paging


PE/NB Database Guy
Database Admin
Feb 11, 2008
How many groups need to be tones / how many tone sets are used?

Each dept. has their own tone set and their own self contained paging system that dispatch accesses via landline.

Can you add talkgroups to the system and dispatch consoles?

The dept. I'm with currently has 4 talkgroups, which dispatch monitors 3/4.


Premium Subscriber
Dec 14, 2008
Easy enough to wire it up to P25 as well; just run the interconnect output audio to the connector in the back of the radio.

If it's a Motorola APX mobile, that's the J2 connector on the backside:
pin 23 for mic+
pin 14 for gnd
pin 16 for ptt

The interconnect should key up the radio and give it the audio just the same as it does for the paging radio.