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Amateur Radio Repeater • 70cm
KC0LL — 444.97500 MHz
Keystone Peak (Sierrita Mtns) • Pima County, Arizona • Grid DM41ju
RF Coverage & Terrain Viewshed
Estimated 45 mi coverage footprint • Click anywhere on map to calculate terrain cross-section
Technical Parameters
| Downlink (Listen / RX) | 444.97500 MHz |
|---|---|
| Uplink (Transmit / TX) | 449.97500 MHz |
| Offset / Shift | +5.000 MHz |
| Uplink Tone (TX Access) | 100.0 Hz |
| Downlink Squelch (RX) | Carrier Squelch (Open RX / Tone Optional) |
| Mode & Bandwidth | FM (Analog) • 70cm |
| Maidenhead Grid | DM41ju |
| Coordinates | 31.87300° N, -111.21800° W |
| Ground Elevation | ~6,188 ft AMSL |
| RepeaterBook Radius | 45 miles nominal |
| Linked System | ARCA Coordinated (KC0LL) |
| Sponsor / Trustee | Trustee (KC0LL) |
| Coordination | ARCA |
| Official Website | https://www.azfreqcoord.org/ |
Propagation & Line-of-Sight
Terrain & Elevation
Keystone Peak (Sierrita Mtns) Ground Profiling
Situated at ~6,188 ft AMSL in Pima County (Maidenhead Grid DM41ju). 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 ProfilerOfficial Database & Coordination
Live Records on RepeaterBook
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