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Amateur Radio Repeater • 70cm
N9EIV — 443.57500 MHz
South Mountain • Maricopa County, Arizona • Grid DM33xi
70cm FM On-Air (ARCA Coordinated) 100.0 Hz +5.000 MHz Shift
AllStar Node 580993
SARC Site SOUTH_MTN
RepeaterBook
Club Website
RF Coverage & Terrain Viewshed
Estimated 60 mi coverage footprint • Click anywhere on map to calculate terrain cross-section
Technical Parameters
| Downlink (Listen / RX) | 443.57500 MHz |
|---|---|
| Uplink (Transmit / TX) | 448.57500 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 / C4FM Fusion (Auto) • 70cm |
| Maidenhead Grid | DM33xi |
| Coordinates | 33.33560° N, -112.05640° W |
| Ground Elevation | ~2,411 ft AMSL |
| RepeaterBook Radius | 60 miles nominal |
| Linked System | SARC Linked Network (90th & Shea & South Mtn) |
| Sponsor / Trustee | Scottsdale Amateur Radio Club (SARC) |
| Coordination | ARCA |
| SARC Site Code |
Site SOUTH_MTN scottsdalearc.org |
| AllStarLink Node |
Node 580993 stats.allstarlink.org |
| VoIP & Gateway Nodes | Dedicated Yaesu System Fusion / WIRES-X Node 28592 · Linked to 90th & Shea 147.180 & 440.000 · Trustee William Kouchis / SARC |
| Network & Inter-Tie | SARC Linked Network · Dedicated Yaesu System Fusion / WIRES-X Node 28592 · Linked with 147.180 & 440.000 · EchoLink W7UF-R (977896) · AllStar 580991 · SARC Net Tue 1900 MST · ASU Net Sat 1900 MST |
| Official Website | https://scottsdalearc.org/repeaters-%2F-nets |
Propagation & Line-of-Sight
Terrain & Elevation
South Mountain Ground Profiling
Situated at ~2,411 ft AMSL in Maricopa County (Maidenhead Grid DM33xi). 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: