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Amateur Radio Repeater • 1.25m
W7ARA — 224.90000 MHz
Shaw Butte • Maricopa County, Arizona • Grid DM33xo
RF Coverage & Terrain Viewshed
Estimated 35 mi coverage footprint • Click anywhere on map to calculate terrain cross-section
Technical Parameters
| Downlink (Listen / RX) | 224.90000 MHz |
|---|---|
| Uplink (Transmit / TX) | 223.30000 MHz |
| Offset / Shift | -1.600 MHz |
| Uplink Tone (TX Access) | 156.7 Hz |
| Downlink Squelch (RX) | Carrier Squelch (Open RX / Tone Optional) |
| Mode & Bandwidth | FM (Analog) • 1.25m |
| Maidenhead Grid | DM33xo |
| Coordinates | 33.59800° N, -112.08100° W |
| Ground Elevation | ~2,149 ft AMSL |
| RepeaterBook Radius | 35 miles nominal |
| Linked System | ARA Crossband Link (SHAW) |
| Sponsor / Trustee | Arizona Repeater Association |
| Coordination | ARCA |
| ARA Site Code | SHAW |
| Network & Inter-Tie | Shaw 220-449 Link - Autopatch (480, 602, 623) |
| Official Website | https://www.w7ara.org |
Propagation & Line-of-Sight
Terrain & Elevation
Shaw Butte Ground Profiling
Situated at ~2,149 ft AMSL in Maricopa County (Maidenhead Grid DM33xo). 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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