North Hills Repeater

The North Hills repeater is located about 12 miles north of Helena, Montana. It is at an elevation of 4,680 feet and on a 150 foot tower. The repeater is a UHF Hytera RD982 Dual Mix 50 watt station. The repeater antenna is a Decibel Products DB-420 8-bay omni-directional antenna located at the top of the tower and fed with Inch and 5/8s heliax. The repeater covers the entire Helena Valley as well as US Highway 12 to Townsed, and down Highway 287 to I-90. It also covers all of the 3 large lakes along the Missoula River. This repeater is permanently linked to the MacDonald Pass Repeater Group using Echolink. In 2016, the repeater was replaced with a new Hytera DMR Digital repeater and operates in Dual Mix. Dual Mix means the repeater operates both Analog or Digital in DMR. The Digital system has more information to our Digital Website at

Repeater Location: North 46-46-12.4 West 112-1-40.9 (NAD 27 Datum)


70 CM Repeater Specifications

Receive Frequency (Input): 448.9000 Mhz

Transmit Frequency (Output): 443.9000 Mhz

Transmit Output Power: 50 Watts

Effective Radiated Power: 400 Watts

PL Tone Required: 131.8 Hz, repeater encodes and decodes tone

DMR Color Code: 1

Call Sign: WR7HLN (Mac Pass Repeater Group)

Antenna Gain: 10 db

Antenna Pattern: Omni-Directional

Backup Power: 200 Amp Battery (approximately 3 days with 2 hours transmit per day)

Time Out Timer: 3 minutes resets on input signal drop

Repeater Photograph

Tower and DB-420 Antenna Photograph

DB-420 Antenna Closeup

Tower and Microwave Dish



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