On Nov 28, 9:49 pm, Bill wrote:
What does it mean when I hear music like jingle (tone) lasting about a
second at the end of transmission? Does it mean it is trunk
communication? Any sites I can look up to learn more?

Thanks in advance.

-Bill

It may very well be a trunk. When the City Services here in Calgary
AB Canada, used the GE/Ericcson trunk, there was a jingle right after
each transmission, then the conversation hopped to the next
frequency. It was totally annoying, and hard to scan. Curious to
know what frequencies you are monitoring. Here in Calgary, we have
now, trunks in 400, 800, and 900 mhz bands.
Fred Burgess