See thread: Telemetry-Which is better suited UHF/VHF by Troy Moody. Troy ran some side by side tests of UHF vs VHF. At the end he purchased an MRT 434-100 with no further heartburn.

Note, Troy does urban guerrilla hawking, and the interference on 216 made the reception very poor in suburban areas. If you hawk far rural to outright wilderness this may not be a factor.

The recent MRT receivers have a very strong attenuator. Works well on the "inside 5 feet" mode. If you are working mainly short range get the shortened antenna for super compact in the UHF receivers.

I offer a low cost solution for long run time UHF transmitters. You can have Marshal program a transmitter for shorter beeps and longer between beeps to get a long run time.

Regards,
Thomas of the Desert