Back to Directory
Amateur Radio Repeater • 70cm
W7MOT — 440.81250 MHz
White Tanks Middle Peak • Maricopa County, Arizona • Grid DM33qo
RF Coverage & Terrain Viewshed
Estimated 45 mi coverage footprint • Click anywhere on map to calculate terrain cross-section
Technical Parameters
| Downlink (Listen / RX) | 440.81250 MHz |
|---|---|
| Uplink (Transmit / TX) | 445.81250 MHz |
| Offset / Shift | +5.000 MHz |
| Uplink Tone (TX Access) | D-Star |
| Downlink Squelch (RX) | Carrier Squelch (Open RX / Tone Optional) |
| Mode & Bandwidth | D-Star DV (Voice) • 70cm |
| Maidenhead Grid | DM33qo |
| Coordinates | 33.58800° N, -112.58800° W |
| Ground Elevation | ~3,950 ft AMSL |
| RepeaterBook Radius | 45 miles nominal |
| Linked System | MARCA D-Star UHF Repeater (Module B) |
| Sponsor / Trustee | Motorola Amateur Radio Club of Arizona (MARCA) |
| Coordination | ARCA |
| MARCA Call ID | W7MOT B (White Tanks) |
| Network & Inter-Tie | D-Star Voice (Module B) linked to REF009 C Arizona Gateway |
| Official Website | https://www.w7mot.org/index.php/repeaters/by-qth |
Propagation & Line-of-Sight
Terrain & Elevation
White Tanks Middle Peak Ground Profiling
Situated at ~3,950 ft AMSL in Maricopa County (Maidenhead Grid DM33qo). 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: