Ambulance frequency shows two different CTCSS tones

[compuscan]

My scanner (HP-1) shows on 148.22500 MHz (Moore's Ambulance) two different CTCSS tones.
(1) 146.2 CTCSS which is normal analog voice.
(2) 156.7 CTCSS which uses voice inversion.

Also I hear the same voice inversion and 156.7 CTCSS on the same frequency but the scanner also shows it as "Down East Communications" sometimes and not "Moore's Ambulance"

I'm not sure if "Moore's Ambulance" switches between voice inversion and not using it or 2 stations share the same frequency with "Down East Communications" using voice inversion. The clear analog voice is always Moore's Ambulance and I'm not sure who the voice inversion is because I can't hear what their saying.

The"Moore's Ambulance" is listed from Clarke's Beach and can be heard clearly in St. John's.

 

[Jay911]

I submitted a ticket earlier this week to remove the DownEast frequency from the DB; it's a duplicate.

Not sure about the inversion and different tone. I didn't pick up any inversion when I was in the city Saturday night and Sunday. If the frequency is owned by DownEast, it's possible that they license the freq out to more than just Moore's, or that Moore's has two channels, as you describe. In the Clarenville area I've seen two different distinct channels on the same ambulance frequency, with two different tones (and have submitted both to the DB). One sounded like a hospital patch, aka crews calling a hospital to discuss patient condition and care. That could be what is using voice inversion in the city, though I seem to recall that most ERs around the metro area have dedicated patch channels.

I've made a bunch of submissions for various frequencies between St John's, Clarenville, and Swift Current, where I'm staying for the remainder of the week. I have decent reception for a few systems - better than I thought I would have - and the submissions I sent in will give you some new stuff to work on.