172.9

[dragonball]

what agencie uses 172.9

 

[davidbond21]

Its a TSA channel for sure, at least round my parts in San Antonio. If its digital, then I'm even more sure.

 

[fineshot1]

Never mind - deleted

 

[ecps92]

The Internet and Search engines are your friend.
The RR Wiki is even a better friend http://wiki.radioreference.com/index.php/Transportation_Security_Administration

what agencie uses 172.9