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Amateur Radio Repeater • 70cm
KC7TKK* — 443.27500 MHz
Rio Rico • Santa Cruz County, Arizona • Grid DM41ml
RF Coverage & Terrain Viewshed
Estimated 18 mi coverage footprint • Click anywhere on map to calculate terrain cross-section
Technical Parameters
| Downlink (Listen / RX) | 443.27500 MHz |
|---|---|
| Uplink (Transmit / TX) | 448.27500 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 | DM41ml |
| Coordinates | 31.47000° N, -110.97800° W |
| Ground Elevation | ~3,478 ft AMSL |
| RepeaterBook Radius | 18 miles nominal |
| Linked System | ARCA Coordinated (Pedro Hernandez) |
| Sponsor / Trustee | Pedro Hernandez |
| Coordination | ARCA |
| Official Website | https://www.azfreqcoord.org/ |
Propagation & Line-of-Sight
Terrain & Elevation
Rio Rico Ground Profiling
Situated at ~3,478 ft AMSL in Santa Cruz County (Maidenhead Grid DM41ml). 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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