The Region of Waterloo employs an EDACS trunked
radio system for their Police, Fire, Transportation and other city
What is EDACS? EDACS is a radio communications
system that provides high-speed wireless analog voice, digital
voice, and data communications.
This EDACS system allows groups of users to
communicate with each other as if they were standing in the same
room. The system is comprised of primary control channels
and alternate control channels. At any given time, each site
(Police, Fire, City Services etc.) has one control channel. The remaining channels are used as working
functions such as call queuing, emergency calls, and call
prioritization are always available.
Within this EDACS system are literally
hundreds of individual 'talkgroups'. A talkgroup can be thought of
as an individual party line. Everyone listening on a specific talkgroup
will hear everything said on that particular talkgroup. For
example, all the police on talkgroup 00-021 (Central (Kitchener)
Division 1) will hear everything
said on that particular talkgroup only. They will not
hear anything from the South (Cambridge) Division 2, because they are
on a different talkgroup ( talkgroup 00-022).
Different Police Divisions,
Detectives, Emergency Response Units, Fire trucks etc. will all
have their radios tuned to different talkgroups depending on their individual
The Police scanner is programmed to receive certain
talkgroups from within the
Region EDACS system, and are listed below. Primary control
frequencies ( also listed below) are in red.
Not all possible talkgroups are scanned and
broadcast. It is felt to be inappropriate to publically re-broadcast certain
tactical and sensitive talkgroups.