Back to Directory
Amateur Radio Repeater • 70cm
K7YUM — 449.92500 MHz
Telegraph Pass (Gila Mtns) • Yuma County, Arizona • Grid DM22uq
RF Coverage & Terrain Viewshed
Estimated 35 mi coverage footprint • Click anywhere on map to calculate terrain cross-section
Technical Parameters
| Downlink (Listen / RX) | 449.92500 MHz |
|---|---|
| Uplink (Transmit / TX) | 444.92500 MHz |
| Offset / Shift | -5.000 MHz |
| Uplink Tone (TX Access) | 88.5 Hz |
| Downlink Squelch (RX) | Carrier Squelch (Open RX / Tone Optional) |
| Mode & Bandwidth | Yaesu System Fusion (C4FM) • 70cm |
| Maidenhead Grid | DM22uq |
| Coordinates | 32.66800° N, -114.30500° W |
| Ground Elevation | ~1,980 ft AMSL |
| RepeaterBook Radius | 35 miles nominal |
| Linked System | Wires-X (Yuma Amateur Remote Base Ass.) |
| Sponsor / Trustee | Yuma Amateur Remote Base Ass. |
| Coordination | ARCA |
| Official Website | https://www.azfreqcoord.org/ |
Propagation & Line-of-Sight
Terrain & Elevation
Telegraph Pass (Gila Mtns) Ground Profiling
Situated at ~1,980 ft AMSL in Yuma County (Maidenhead Grid DM22uq). 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
Check trustee contact information, travel tones, coordinated status, and community reports directly on RepeaterBook: