Whitby CACC

[pleith]

I used to monitor the ambulance on my VX2R Yaseu handheld. I realize they have now gone trunked. I have programmed the four frequencies that they are using into a bank on the VX2r and when I scan , I can pick up the conversations OK. My question is that sporadically, on one of the talk channels I get a loud annoying noise. Sounds Like eggs frying, then jackhammer. Sometimes its brief , other times it remains for a number of seconds. What is going on during these bursts of noise. I can har it all the time on the control channel but have left that frequency out of the bank. Is there some way to get the scanner to ignore this burst of noise. I am obviously new to scanning and no doubt will be told to get a trunking scanner but am still curious what is being sent during these bursts.
Any help appreciated.

Phil

 

[mikewazowski]

Since this is a trunked system and the frequencies are used by many agencies including some who use digital, you will not be able to separate the analog transmission from the digital transmissions without buying some sort of trunktracking scanner.

The annoying noises are the digital voice transmissions of the OPP, MTO Enforcement and MNR Enforcement.

You'll have somewhat better luck programming in the analog vehicular repeaters for the MOH. If a vehicle is close by, you will be able to listen in without any digital noise. Check the Ontario database for the MOH and program in the UHF VR's.

Also keep in mind that Whitby CACC doesn't exist, it's Oshawa CACC.

 

[pleith]

Mike . Thanks for the reply.
i kinda thought these were digital transmissions but didnt realize that OPP etc were using the same frequencies. The list of frequencies, (4 +2 control) shown elsewhere on this site and labelled Whitby are the frequencies I am listening to. I gather what you are suggesting is using the input frequencies to the repeater. Where do I find these frequencies or am I still not quite clear on what is happening?

Phil

 

[mikewazowski]

Since the database is quite large, I'm not sure what frequencies you are referring to.

If I was to guess, I'd say you've found the Whitby site for the BMR Fleetnet system (Zone 1).

These frequencies are shared by all users of the system including the digital ones.

You will still hear the digital voice on the inputs to these repeaters.

What I am suggesting is you look in the conventional database under Ontario and find the Ministry of Health (MOH) listings.

Take the 5 or so UHF Conventional Vehicular Repeater frequencies and plug those in.

If an MOH vehicle is nearby and they have their vr turned on, you should hear communications.

The drawback to this is you won't hear anything if a vehicle is not nearby with it's repeater turned on.

However, this is the only way you will hear MOH communications without buying a trunk tracking scanner.

 

[pleith]

You are correct Mike . The frequencies I have been monitoring are 141.39, 142.05, 42.29,142.335, and 142.425. These are the ones listed for Whitby on the Bell fleetnet system zone one for CACC. These 5 frequencies seem to pick up all the local activity for Whitby and Oshawa so I am assuming that these are the only frequencies being used by the local ambulance (not sure if thats correct or not} Sometimes one of these frequencies also has digital traffic as you described, indicating likely OPP activity. I have also heard what appears to be MOT traffic (roads work) on analogue during the day.
I am not sure I understand your alternate suggestion. Are you saying that the same communication that is being carried on the VHF frequencies is also on some UHF frequencies?. If so what is the purpose of having both bands carry the traffic, and can you point me towards asource of the UHF frequencies. Sorry for being a bit of a dummy but I am trying to piece together how these things work, Thanks for your help

Phil

 

[IdleMonitor]

For OPP and MOH (EMS) the system is pretty much designed for Mobile usages and not portable usages. Therefore, when say an officer or medic is outside of the vehicle, they need a portable radio that essentially retransmits everything back to the car VR (Vehicle Repeater) which then will send it to the closest tower. Obviously the mobile will have more transmit power and antenna power than a portable radio. Other's can explain this part a bit further.

If you don't have a trunking scanner, then you should put in all the VR frequencies. And as mentioned, you may or may not hear anything on it depending if there is a unit close by.

Most activity on this system will generally hit more than 1 tower at any given time, usually 2 maybe 3 towers depending on locations.

OPP Vehicle Repeaters and Beat Frequencies (which usually only transmit 1 talkgroup (usually the home talkgroup for that detachment) that's on the system unless patched) can be found here http://www.radioreference.com/modules.php?name=RR&aid=577 VR01, 02, and 03 are the active ones along with perhaps the Beat repeater depending on your location. Not all towns that have a detachment will have a Beat Repeater. And you'll have no choice but to listen to just the VR.

EMS VR's can be found here http://www.radioreference.com/modules.php?name=RR&aid=575 They have no Beat repeaters associated to them. Just what's listed.

I have also heard what appears to be MOT traffic (roads work) on analogue during the day.
I am not sure I understand your alternate suggestion. Are you saying that the same communication that is being carried on the VHF frequencies is also on some UHF frequencies?. If so what is the purpose of having both bands carry the traffic, and can you point me towards asource of the UHF frequencies. Sorry for being a bit of a dummy but I am trying to piece together how these things work, Thanks for your help

Phil

 

[pleith]

Thanks Mike . Will give the UHF VR's a try. (talking like a pro). One question remains. What does beat repeater stand for.

Phil

 

[mrweather]

It's typically a UHF repeater set up in a community where OPP is the local police force. It's used for foot (beat) patrols, among others. It allows for portable coverage on a system designed for mobiles.

The big advantage is it's analog and the range is usually pretty good.

 

[pleith]

Thanks. That makes sense

Phil