FREDERICTON, NEW BRUNSWICK 
TRUNK SYSTEMS
Updated November 3, 2006

information courtesy of Nick, Chris and other listeners

There are two known 800 MHz trunk systems in Fredericton.  One is a commercial system and the other is the City of Fredericton's municipal system.  There is also a conventional 800 MHz non-trunked repeater operated  by Eastern  Communications.

1. Municipal System.  

THIS SYSTEM IS ACTUALLY A THREE SITE COMPONENT OF THE NOVA SCOTIA TRUNKED MOBILE RADIO SYSTEM (TMR).  Facilities are provided and operated by Bell (Aliant Telecoms).  The frequencies used are the same as are used at TMR sites in NS.   Units which customarily use TMR sites in Nova Scotia have been heard using the Fredericton sites, and Fredericton units could do the reverse.  Companies active in both provinces have been heard on the Fredericton sites and on Nova Scotia sites.    It would be very easy for the Fredericton Police to have direct communications with Halifax Police, for example, if that was desired; however it is not thought that any HPD tg is currently programmed into the FPD consoles, or vice versa.

The three sites are not simulcast but the traffic is for the most part identical as various units on any talkgroup are often affiliated to all three sites.   If any one site is to be monitored it should be Maryland Hill as it would carry virtually all the Fredericton traffic.

SITE FREQUENCY 800 MHZ PLAN CHANNEL NUMBER
Popple Hill 860.0375 CC 362
Popple Hill 860.2875 372
Popple Hill 860.5375 382
Popple Hill 860.7875 392
Popple Hill 861.0375* 402
Popple Hill 861.2875* 412
Maryland Hill 860.1875 CC 368
Maryland Hill 860.4375 378
Maryland Hill 860.6875 388
Maryland Hill 860.9375 398
Maryland Hill 861.1875 408
Maryland Hill 861.4375 418
Silverwood 861.3375 CC 414
Silverwood 861.5875 424
Silverwood 861.8375 434
Silverwood 862.0875 444
Silverwood 862.3375* 454
Silverwood 862.5875* 464

CC = Data control channel

* These frequencies are unconfirmed but are the likely possible fifth and sixth frequencies in the Popple Hill and Silverwood groups, to match the number of frequencies (six) as are found at the Maryland Hill site.  

Fredericton Municipal talkgroup ID's  (this is incomplete)

03248    Police Ch 1
03280    Police Ch 2
03312    Police  Ch 3
03344    Police 
03376    Parks & Trail Patrol
03440    Fire Preventio		 03472    Fire Tone Alerts
03504    Fire Ch 2
03536    Fire Ch 3
03568    Fire Ch 4
03600    Fire/Police liaison
03728    Works
03760    Public Works Ch 1
03792    Public Works Ch 2
03856    Works?
03888    Police?
03920    Public Works Ch 3
03984    Transit
04048    Parking Enforcement
04240    Fire Ch 1

Associated 800 MHz non-trunked frequencies

The city of Fredericton also has a number of conventional frequencies that are associated with the municipal trunk.  By that I mean that these frequencies are in the same radios as the trunk talkgroups, listed as channels, and for the users of no difference. In most cases their specific usage is not known and may be used for paging, for vehicular repeaters or for short range use.   I-Tac and I-Call channels are in both fire and police units.   Presumably there would be a police simplex not yet known, but that thought is purely speculative.

In case of a breakdown of the trunk system there is a failsoft system which causes all city units to go to one of two conventional repeaters so that there is no confusion and all units can still communicate.   It is possible also in a breakdown for units to use site trunking.  Site trunking means that trunking or sharing of frequencies still happens but the sites are isolated from each other.  Generally speaking, in a situation where there is more than one site in use by a particular agency it is better to go to conventional repeater(s) on one frequency, so that as much as possible all can continue to hear each other.  In Fredericton's case it is not known whether the failsoft conventional repeaters are single-site on the tower with the best coverage, or on all three sites but on the same frequency.

Please note that the city consoles have all the municipal talkgroups and channels, so that the police dispatcher can use transit or fire talkgroups if necessary, and vice versa.    Dispatch also has VHF and UHF consoles for contact with Provincial Ambulance, EMO, etc.

 

Output

Input

Designation

IC Channel Number
852.0125 807.0125 Police Failsoft repeater  
852.1125 807.1125 Fire and Works Failsoft repeater  

866.0125

821.0125

I-Call

601 (Conventional)
866.1875 simplex Fire simplex  

866.5125

821.5125

I-Tac 1

639 (Conventional)

867.0125

822.0125

I-Tac 2

677 (Conventional)
867.1875 simplex Fire simplex  

867.5125

822.5125

I-Tac 3

715 (Conventional)

868.0125

823.0125

I-Tac 4

753 (Conventional)


2. Aliant Commercial Trunk System.  Maryland Hill DOT Radio Site.  System ID: 451A

FREQUENCY

800 MHZ PLAN CHANNEL NUMBER
858.1875 Voice 288
858.4375 Voice 298
858.6875 Voice/Control 308
858.9375 Voice/Control 318
859.1875 Voice/Control 328

The three highest frequencies alternate as control channel, with the change occurring at midnight.  When not in use for control, the frequencies operate as normal voice channels.

Some talkgroup ID's on the Aliant commercial system:

00016    Garage MDI
00032    Armour Trucking
00064    AA Towing
00080    Fedex Courier
00128    St. Mary's Courier
00144    Landfill
00176    Enbridge Natural Gas Pipeline
00432    Provincial Security
00512    Hospital Security & Maintenance
08273    Miller Transportation

3. Eastern Communications Conventional System (LTR SYSTEM)  Mount Kathy site   THIS SITE HAS BEEN DECOMMISSIONED DUE TO ONGOING TECHNICAL DIFFICULTIES, BUT MAY RETURN IN THE FUTURE.

FREQUENCY

800 MHZ PLAN CHANNEL NUMBER
858.0625 283
858.3125 293
858.5625 303