[op25-dev] Re: P25 TDMA
op25-dev at yahoogroups.com
Tue Sep 27 23:45:11 UTC 2016
That is a very interesting question, there is some margin built in to the timing specs, but it's not clear how much the time difference of arrival would eat into that. It's usually not that common or easy to monitor mobiles directly in UHF/800/900 - the much more common case is to listen to them via the repeater output (downlink) anyway, also TDMA isn't currently used for direct (simplex) mobile/mobile comms.
The trunking RX in OP25 does support P2/TDMA, but only to listen to repeater downlinks. There are different modulation formats for uplinks and downlinks.
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