USVI MPT-1327 System Update

[scannerboy02]

Got back early this morning from a week on St. John and figured I'd post a little update to my post from the last trip.

USVI MPT-1327 System Info

I just got back to the mainland from 10 days in St. John. I took several scanners and my laptop with 4 RTL-SDR's with the hopes of doing as much research on the radio systems on the island as I could. I was in St. John about 7 years ago and only took one scanner with me at that time (not knowing...

forums.radioreference.com

To my somewhat surprise, the only changes I found were that the VIPD and VIPA are now using voice inversion scrambling.

They also seem to be using "broadcast" talk groups that are using x-8189 for things like "call dispatch" or trying to hail a unit that isn't responding.

Still no signs of the P25 trunking system on the air yet.

 

[RFI-EMI-GUY]

Where did you stay on St John? Have not been back since before Maho Bay closed up. That was our regular spot.

 

[scannerboy02]

Where did you stay on St John? Have not been back since before Maho Bay closed up. That was our regular spot.

In a cottage near the end of Bordeaux Mountain Road. We like that area a lot so have always stayed on the mountain, I took a short walk up to the tower site this trip. We already have the same cottage booked for next year with hopes of purchasing a place in the not too distant future.

 

[RFI-EMI-GUY]

In a cottage near the end of Bordeaux Mountain Road. We like that area a lot so have always stayed on the mountain, I took a short walk up to the tower site this trip. We already have the same cottage booked for next year with hopes of purchasing a place in the not too distant future.

I remember going to look at some parcel back in the mid 80's . I want to say Mosquito Cove or something. Anyway the road was impassible because a cement truck had overturned and its huge drum was still there rusting away. Probably still there with a road around it by now.

 

[scannerboy02]

2024 update.

I was able to spend a few hours on St. Thomas yesterday and confirmed the channel lineup for three of the five sites on that island.

Site Name:
Flag Hill

GPS:
18 19 47.7, -64 54 38.2

Site ID (dec):
20489

Site ID (hex):
5009

Peers:
5011 (CC CH-011)
5019 (CC CH-021)
5021 (CC CH-026)
5029 (CC CH-032)

Channels:
000.0000 (CH-001)
159.0000 (CH-002) CC
000.0000 (CH-003)
159.2250 (CH-004)
000.0000 (CH-005)
159.4650 (CH-006)
----------
Site Name:
Benner Hill

GPS:
18 19 42, -64 51 33

Site ID (dec):
20497

Site ID (hex):
5011

Peers:
5009 (CC CH-002)
5061 (CC CH-111)

Channels:
160.6650 (CH-009)
000.0000 (CH-010)
158.9700 (CH-011) CC
159.2100 (CH-012)
159.0900 (CH-013)
000.0000 (CH-016)
----------
Site Name:
Mountain Top

GPS:
18 21 15.20, -64 56 38.60

Site ID (dec):
20505

Site ID (hex):
5019

Peers:
5009 (CC CH-002)
5029 (CC CH-032)

Channels:
158.8950 (CH-021) CC
159.0300 (CH-022)
159.1950 (CH-023)
159.4350 (CH-024)
160.2300 (CH-025)
158.7750 (CH-031)
----------
For the channels with "000.0000" I was unable to get a frequency for. I used multiple sources/devices to attempt to find the frequency with no luck.

 

[wirr]

Excellent work, scannerboy02! Here is what I found on a recent visit to St. Thomas:

VI Govt has 14 site MPT1327 trunking system.
MPT Control Channels
158.73125
158.89375
158.96875
159.000
159.150
159.300
160.24375

MPT Voice Channels
158.77500
158.80625
159.03125
159.04375
159.10625?
159.11875
159.18125
159.19375
159.20625
159.22500 WNZG617 Flag Hill, Charlotte Amalie VI - Govt of the VI
159.23125
159.34375 inv scr

Conventional
158.310 repeater taxi??
158.79375 signalling?
159.25625 repeater taxi?
159.71875 color 1 slot 2 Talkgroup 3000 RID 8 DMR
160.45625 repeater VITAXI WPXC578 exp Pryce Inc @ Flag Hill, C.A.
161.1625 repeater
162.4500 WX

The police appear to be using Tait radios. Many Icom VHF portables seen in use by businesses.