NSW P25 GRN - Talk Groups Part 3

Re: NSW P25 GRN - Talk Groups Part 3

Postby matthewn1983 » Wed Aug 28, 2019 9:06 pm

Was it last night or early hours this morning?
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Re: NSW P25 GRN - Talk Groups Part 3

Postby Scotty » Wed Aug 28, 2019 9:26 pm

10186 patched to 10067 was last seen 26/08 at 2:38am.

10174 patched to 10042 was last seen 26/08 at 10:05pm.
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Re: NSW P25 GRN - Talk Groups Part 3

Postby cartman » Thu Feb 13, 2020 3:14 am

Walt Bishop wrote:
matthewn1983 wrote:
11676 (RID 2955xxx) Unknown
11678 (RID 2955xxx) Unknown

Sent from my SM-G950F using Tapatalk


I've seen 11676 coming up and testing TDMA slots on 003-004 Mt Ainslie. Also RIDs in 1054nnn range. Perhaps a test talk group?


Parked Unitrunker and DSD on the Castle Hill site 001-075 yesterday while i was out and managed to capture a couple of GRN techs (RID 2920XXX) carrying out TDMA testing in the late afternoon using TG 11677 and what appeared to be external call testing

So in the transition to Phase 2 TDMA this will be the channel display on Unitrunker for 001-075. (On a big site like GPT Sydney CBD you would be looking at close to 70 frequency enteries).
There were no hits on my log for the second time slot on the control channel and backup control channel

420.1750 = 05-0028 P1 Voice Channel
420.6750 = 05-0108 P1 Voice Channel
421.4250 = 05-0228 P1 Voice Channel
421.6750 = 05-0268 P1 Backup Control Channel
421.9250 = 05-0308 P1 Voice Channel
422.4250 = 05-0388 P1 Control Channel
423.1750 = 05-0508 P1 Voice Channel
423.4250 = 05-0548 P1 Voice Channel
423.9250 = 05-0628 P1 Voice Channel
420.1750 = 07-0028 P2 Voice Channel 1
420.1750 = 07-0029 P2 Voice Channel 2
420.6750 = 07-0108 P2 Voice Channel 1
420.6750 = 07-0109 P2 Voice Channel 2
421.4250 = 07-0228 P2 Voice Channel 1
421.4250 = 07-0229 P2 Voice Channel 2
421.9250 = 07-0308 P2 Voice Channel 1
421.9250 = 07-0309 P2 Voice Channel 2
423.1750 = 07-0508 P2 Voice Channel 1
423.1750 = 07-0509 P2 Voice Channel 2
423.4250 = 07-0548 P2 Voice Channel 1
423.4250 = 07-0549 P2 Voice Channel 2
423.9250 = 07-0628 P2 Voice Channel 1
423.9250 = 07-0629 P2 Voice Channel 2

on DSD the TDMA P2 channel is displayed as "420.175-1" or "420.175-2" etc
Last edited by cartman on Thu Feb 13, 2020 4:29 pm, edited 1 time in total.
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Re: NSW P25 GRN - Talk Groups Part 3

Postby citabria » Thu Feb 13, 2020 8:49 am

Control channels are FDMA only (at the moment) so the concept of a slot doesn’t apply. The TIA is working on a TDMA CC variant, but don’t expect to see it any time soon.

A CC is just FDMA, so there is no first or second or any other slot.
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