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Amateur Radio Repeater • 2m

N7OEM — 147.00000 MHz

Childs Mountain (Ajo) • Pima County, Arizona • Grid DM32mk

2m FM On-Air (ARCA Coordinated) 107.2 Hz +0.600 MHz Shift RepeaterBook Club Website

RF Coverage & Terrain Viewshed

Estimated 35 mi coverage footprint • Click anywhere on map to calculate terrain cross-section

Terrain Profiler Tool

Technical Parameters

Downlink (Listen / RX) 147.00000 MHz
Uplink (Transmit / TX) 147.60000 MHz
Offset / Shift +0.600 MHz
Uplink Tone (TX Access) 107.2 Hz
Downlink Squelch (RX) Carrier Squelch (Open RX / Tone Optional)
Mode & Bandwidth FM (Analog) • 2m
Maidenhead Grid DM32mk
Coordinates 32.43800° N, -112.93200° W
Ground Elevation ~2,860 ft AMSL
RepeaterBook Radius 35 miles nominal
Linked System ARCA Coordinated (PIMA CO. OFFICE OF EMERG. MGT)
Sponsor / Trustee PIMA CO. OFFICE OF EMERG. MGT
Coordination ARCA
Official Website https://www.azfreqcoord.org/

Propagation & Line-of-Sight

Terrain & Elevation
Childs Mountain (Ajo) Ground Profiling

Situated at ~2,860 ft AMSL in Pima County (Maidenhead Grid DM32mk). Topographic ground elevation can create shadows or knife-edge diffraction across surrounding Arizona mountain ridges. Click anywhere on the map above to inspect real-time optical line of sight.

Launch Terrain LOS Profiler
Official Database & Coordination
Live Records on RepeaterBook

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