I often wonder why the AAR never set up a universal tone coded squelch system for the AAR channels?
Just like law enforcement and fire use for their mutual aid channels
I figure they could use some kind of coding, even though they would still need multiple frequencies specific to yard, mechanical, road
i know a few rairoads do use it here, but it is very limited. Simplex mode
Each AAR channel has a code paired with it or one code fits all, would be a few examples
73, john
Just like law enforcement and fire use for their mutual aid channels
I figure they could use some kind of coding, even though they would still need multiple frequencies specific to yard, mechanical, road
i know a few rairoads do use it here, but it is very limited. Simplex mode
Each AAR channel has a code paired with it or one code fits all, would be a few examples
73, john
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