Mac Donald Pass Site UHF DMR/Analog
Mac Pass Repeater Group WR7HLN
Contact: Tom WR7AGT [email protected]

Repeater particulars:
444.1 MHz, plus 5 MHz offset
Analog FM access: PL encode/decode 131.8 Hz
DMR admission: Color Code 1
DMR Radio ID: 313002

12 miles west of Helena, high atop Mac Donald Pass, 7155 feet above sea level

Equipment specifics:
Hytera RD982 repeater 50 watts
Split duplexer and antenna system
Two Celwave PD-1151-2N 8dBd omni pattern antennas. Tower height is 93 feet, repeater antennas are on top. Antenna HAAT = 5272 feet.

Operational mode:
Dynamic Dual Mode (analog FM or DMR digital on-demand)

DMR: Brandmeister via Montana Internet
Analog FM: EchoLink node WR7HLN-R 111730 always connected to conference server *MONTANA* 391181 or *WR7HLN* 259372

Coverage includes Helena and the Helena Valley, minus the State Capitol Complex and Downtown. Southeast to Townsend. West to Drummond. Southwest to Anaconda and the Deer Lodge Valley.

We anticipate most Helena-area hams will be reachable on talk group MPRG1 31301.

With our two EchoLink conference servers *MONTANA* and *WR7HLN*, and also using EchoLink client software on computers that are directly connected to a repeater or to a control station, we have a seven-repeater network that provides UHF radio coverage over a portion of Western Montana. Although the conference servers are set up as private, from the RF side, we allow and encourage hams to connect our repeaters short-term to EchoLink stations outside of our network. Please go to this page: for a list of EchoLink DTMF codes to take control of and make contacts from our repeaters.

8/9/18 Failed Dell PC for EchoLink replaced with a RaspberryPi 3 running svxlink software by Don W7MRI.
8/4/18 Boulder Hill and Mac Pass repeaters are used to support the Elkhorn Endurance Run.
8/5/17 Boulder Hill and Mac Pass repeaters are used to support the Elkhorn Endurance Run.
5/18/16 Hytera DMR repeater on the air.
7/16/16 EchoLink interface installed and tested.
8/6/16 Mac Pass UHF and Boulder Hill used to support the Elkhorn Endurance Run.

Coverage map depicting the service area of the Mac Pass UHF DMR repeater
Mac Pass UHF DMR Coverage 180624 v2

Tower and Building
Mac Donald Pass Radio Site

Original antennas, no longer on the tower. The stick antenna in the middle and the two ground plane antennas were part of the AT&T Echo Fox radio system.