Ornge

[moonbounce]

Anyone noticed Orgne using 150.100 and 129.275 as opposed to the UHF frequencies? I hve never heard Ornge use 129.275 until yesterday.

Moonbounce

 

[ve3tej]

yes in London they have been using those frequencies lately

 

[Forts]

I've noticed an increase on 129.2750 over the last few days too. Just heard them on there today at lunch time, setting up a modified pickup somewhere over the GTA way.

 

[phyberoptics]

Anyone noticed Orgne using 150.100 and 129.275 as opposed to the UHF frequencies? I hve never heard Ornge use 129.275 until yesterday.

Moonbounce

You will here them on 150.100Mhz when they need to talk to scene crew (ground ambulance), and as I recall they use 129.275 (Air/Ground) to talk to the CACCs (it's listed in the Canada Flight Supplement as the frequency to use for Air Ambulance dispatch, although my copy of CFS is several years old now...).

 

[captaink]

I have heard them on 150.1000 calling Georgian.

 

[VE3JSO]

You will here them on 150.100Mhz when they need to talk to scene crew (ground ambulance), and as I recall they use 129.275 (Air/Ground) to talk to the CACCs (it's listed in the Canada Flight Supplement as the frequency to use for Air Ambulance dispatch, although my copy of CFS is several years old now...).

They also use 150.100 to talk to the cacc as well

 

[IdleMonitor]

You can also note, that the Chopper has a PL of 118.8 on 150.1 but the Base (Dispatch) does not.

 

[moonbounce]

So a question on the pl tone. I thought that apl tone gave of a noise ( tone) and that you couldn't stay on that channer or all you would hear is the tone, yes/no? I don't hear any tone before or after they talk on 150.100 mhz.

 

[ATCTech]

A PL tone is intended to be sub-audible (most radios filter audio below about 300 Hz) to allow multiple unrelated users to share a single frequencies without having to hear each others' transmissions. Each user's radios are programmed to detect only the tone assigned to them, allowing the squelch to open only when that tone is detected in the receiver. Obviously they can't all talk at once, but it does keep other user's radios silenced when an agency is using the frequency. It has nothing to do with preventing listening as the tone is at a very low audio level and does not interfere with the intended voice audio,

Most PL tones are between about 62 and 225 Hz. It's a primitive (analog) way of frequency sharing.

 

[tilt404]

Been hearing them in the Windsor area tonight, but not sure where, just been hearing one side of the convo, but haven't had the pl in so will do that.

Actually I had tone search on, but nothing came up. Who they were talking to might of been too far from me though. But if I heard them the tone should of came up. Could of been someone else talking though too.

Update: just heard them again but was really clear and southern US accent. They were asking for weather for certain cities around the Chicago state area. Still no tone came up.

 

[va3zai]

My understanding of the 150.1MHz frequency is a provincial common frequency between all EMS services. It is meant for crews who cross over into other jurisdictions to communicate with the dispatch agency of where they are.

When I volunteered with St John Ambulance, we were given that frequency as a super-emergency (think "OMG we have no cell access, no land line access, and we need EMS yesterday" type situations).

 

[mikewazowski]

My understanding of the 150.1MHz frequency is a provincial common frequency between all EMS services. It is meant for crews who cross over into other jurisdictions to communicate with the dispatch agency of where they are.

Generally the Zone Common, Region Common and CACC talkgroups on Fleetnet are now used for that purpose.

You will still hear the odd ambulance on there but most days it's only use is for coordination with ORNGE.

 

[Forts]

I would imagine it's a last case resort in case Fleetnet takes a dump for whatever reason too. Back during the blackout there was serious concern about the generators at the tower sites running out of fuel. If that was to happen, those old VHF channels would suddenly spring to life I'm sure.

 

[papillon]

Choppers used to use 129.275 when going into Windsor but this frequency is also used by aircraft talking to
a Chicago dispatcher ( sounds like a company frequency) .Lately, the Chopper calls Windsor CACC on 150.100, then shortly after that he contacts Windsor Tower on 124.700. Stay safe everyone!

 

[tilt404]

ah that's what i heard last night. thought they were talking to something near chicago

 

[papillon]

Someone suggested they heard several mentions of Southwest Airlines on 129.275 but I couldn't find that freq listed on the FCC website. The callsign used on 150.100 is the a/c tail #, a few minutes later they call Win Tower using call sign "Medivac". Tower asked for type of aircraft, the last time I heard it, indicating there are several types being used.

 

[moonbounce]

All the time I have had 129.275 on my radio medivac has been the only one using it. I just found it strange that ornge their UHF freq.

 

[papillon]

Seems strange they use 129.275 in London and not in Windsor. I know when Ornge was coming in here they used that freq all the time. The only thing I hear on their now is US a/c talking to Chicago. Its all 150.100 for now at least around here for the various air ambulances (helicopters and regular planes).

 

[DaveNF2G]

Airline business frequencies are not licensed to individual airlines (except for a few very old licenses). They are licensed to ARINC d/b/a ASRI, or some form of that name depending on how long ago was the last renewal or modification.

 

[tilt404]

Just saw the lights and familiar sound of a helicopter outside a few minutes ago in windsor so turned on the scanner and heard fleetnet ems say they were at the airport then heard the Ornge helicopter talk on 150.1 with the 118.8pl but just caught the end of the talk. Ems doesn't seem to be in communication with the helicopter though, they keep asking dispatch for info. They said they see it on the ground but are wondering what to do next.

Update: just heard the Hellicopter again on 150.1 with 118.8 talking to what I think was the cacc since he said tell your crew we are over by gate so and so. Crew, being the ambulance I think. Glad I heard so now I know what freq is in use here.