MTM wrote:
:D :D Most often -- on a shared channel -- they would just use a different PL or DCS code for each service. I have seen this at several malls -- that share the same channel between Security and Maintenance. Any possiblity that they just use two different tones ??
No, I verified and re-verified this. Every time a unit keys up the mic, there's some sort of MODAT-style signalling using DTMF tones....I never really bothered to figure it out, I'm not that interested. I did ask one of the safety guys, he verified the seperation between the 2 channels.
I understand about the multiple channels/tones thing, I remember the Muckleshoot Casino used to use 476.7625/.8125 shared over 8 channels, difering PL tones.
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President-in-Exile, Seattle Area Radio Communications And Scanner Traffic Intercept Crew (SARCASTIC)
Don't feel bad if you can't use your STD100/200; there are still people using Digital Frequency Search!Bunnery definition for the under-fives