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Amateur Radio Repeater • 70cm
KG7SWK — 440.37500 MHz
Phoenix (South Mtn) • Maricopa County, Arizona • Grid DM33xh
RF Coverage & Terrain Viewshed
Estimated 60 mi coverage footprint • Click anywhere on map to calculate terrain cross-section
Technical Parameters
| Downlink (Listen / RX) | 440.37500 MHz |
|---|---|
| Uplink (Transmit / TX) | 445.37500 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 (25 kHz) • 70cm |
| Maidenhead Grid | DM33xh |
| Coordinates | 33.33280° N, -112.06400° W |
| Ground Elevation | ~2,657 ft AMSL |
| RepeaterBook Radius | 60 miles nominal |
| Linked System | Independent |
| Sponsor / Trustee | Aaron Farnham |
| Coordination | ARCA |
| Official Website | http://w7ara.org/Web/ |
Propagation & Line-of-Sight
Terrain & Elevation
Phoenix (South Mtn) Ground Profiling
Situated at ~2,657 ft AMSL in Maricopa County (Maidenhead Grid DM33xh). 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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