The SMART TRS is a four-site simulcast TRS, and transmitts from the following locations:
- Armada (Macomb County)
- Detroit
- Independence Twp. (NW of Pontiac)
- Utica (Macomb County)
Each of these sites will transmit the same conversation on each talkgroup off all four towers at the same time. That said, a lot depends on your location, type of receiver, antenna, and coax that you're using. Since the system operates on 900 MHz, signal losses tend to be rather high, when compared to the 150 MHz band. Whereas, the Northwest Airlines TRS, is a single-site system and transmits from one location at Metro Airport, unless their radios are on the Southfield site.
I live in the Ann Arbor area, and I can hear the SMART and Northwest Airlines systems just fine, albeit they tend to be noisier in the summer months with all foliage on the trees.
73's
Ron