LMRN Technical Data Discussion

[Muxlow]

Dem's the ones. Same 91.5 PL for both BEAT's

 

[mrweather]

So the VR and BEAT repeaters are still analog?

 

[Muxlow]

Correct. For now they are. If you see a cruiser with the black whips rather then the chrome ones, then they have the new radios. Roof UHF antenna will be shorter also.

 

[Wretched]

Picking up Sierra Oxford County units on 772.1312 this evening… must be a car local because that’s a pretty large distance from me for a repeater otherwise.

 

[hunterca]

If the VR's are in the 700's, I guess the C Control channels are also the same. Meaning more ugly towers have to be made because of the high frequencies? Does the BCD325P2 cover the 700 band?

 

[gary123]

Picked them up too on 772.13125 with a PL 88.5. Very noisy, so I was unable to id the user as EMS or OPP.

 

[Muxlow]

Control channels are VHF. The "old" VR's were UHF in the 412 MHz ish range for the portables. Similar here, but rather then it being in the 400MHz, its 700. VHF for the trunked system on the car radios and 700MHz for the portables.

 

[mciupa]

This is the known P25 table for PSRN:

P25 Channel ID Table

CH ID	Type	Base (MHz)	Spacing (KHz)	Transmit Offset (MHz)
1	FDMA	136.00500	0.0075	-4.02
2	TDMA	136.00500	0.0075	-4.02
3	FDMA	136.00500	0.0075	-4.05
4	TDMA	136.00500	0.0075	-2.235
5	FDMA	136.00500	0.0075	-2.235
6	TDMA	136.00500	0.0075	-2.145
7	FDMA	136.00500	0.0075	-2.145
12	FDMA	769.00000	0.00625	+30.0
13	TDMA	769.00000	0.00625	+30.0
14	FDMA	851.06250	0.00625	-45.0
15	TDMA	851.06250	0.00625	-45.0

 

[gary123]

As the hunt for DVRS freq's continues, I am starting to see a pattern. Each frequency per service seem to all use different PL tone. This might be a way to identify a new find.

 

[mikewazowski]

VR01 - 67.0
BEAT02 - 91.5

Found 772.15625MHz with a pl of 94.8hz in Sauble Beach repeating OPP comms.

 

[bluwest]

Picking up Oxford Units in Tillsonburg on OPP BEAT02 772.14375 I also had them on 771.1400 the other night.

 

[ATCTech]

Picking up Oxford Units in Tillsonburg on OPP BEAT02 772.14375 I also had them on 771.1400 the other night.

That second one would have to be either 771.13750 or 771.14375 according to a 6.25kHz step bandplan.

 

[Jradioptbo]

I am wondering when Bell is going to start testing Zone 2 (esp. Ottawa). I have yet to read anything in my zone.
Thanks in advance?
Rob

As soon as you hear that 1038hz tone on the towers associated with your area.

 

[Muxlow]

Just took a trip to northern Ontario. Didn't find any new P25 control channels. Most OPP cars past Barrie all had the old antennas. Even a trip through Orillia, almost all cars had the old style antennas and the UHF BEAT and VR's still in use. No action at all off 700MHz

 

[ATCTech]

142.845 is active with 1038Hz test tone, very weak here in Halton County but decoding like all the rest (TG 1, RID 1) when not being clobbered by FleetNet transmissions. I'm guessing it's not Cedarwoods based on that being the sole known assignment of the freq. in zone 1 which is active with FleetNet voice traffic. The RF level of the P25 carrier is also more than 20dB lower than the FleetNet transmissions from here too and it's fading quickly as the sun rises.

 

[mikewazowski]

Caught 772.13125MHz pl 88.5hz today. Possibly a BEAT repeater in Alliston as well as a BEAT repeater in Hanover or Walkerton.

 

[mikewazowski]

772.13125MHz with a pl of 88.5Hz is definitely coming from Alliston.

772.15625MHz was rebroadcasting Caledon calls so it's most likely a Bolton BEAT repeater.

 

[mikewazowski]

772.13125MHz pl 173.8Hz being used by MOH in the North Bay area.

 

[gary123]

The existing MOH and 700 MHz frequencies may be common across the province.

 

[mikewazowski]

771.89375MHz pl 127.3Hz head in the Wiarton area carrying MOH traffic.