Back to Directory
Amateur Radio Repeater • 2m
W7AI — 147.32000 MHz
Catalina • Pima County, Arizona • Grid DM42mm
2m FM On-Air (ARCA Coordinated) 156.7 Hz +0.600 MHz Shift
AllStar Node 604785
RepeaterBook
Club Website
RF Coverage & Terrain Viewshed
Estimated 18 mi coverage footprint • Click anywhere on map to calculate terrain cross-section
Technical Parameters
| Downlink (Listen / RX) | 147.32000 MHz |
|---|---|
| Uplink (Transmit / TX) | 147.92000 MHz |
| Offset / Shift | +0.600 MHz |
| Uplink Tone (TX Access) | 156.7 Hz |
| Downlink Squelch (RX) | Carrier Squelch (Open RX / Tone Optional) |
| Mode & Bandwidth | FM (Analog) • 2m |
| Maidenhead Grid | DM42mm |
| Coordinates | 32.50560° N, -110.92120° W |
| Ground Elevation | ~3,081 ft AMSL |
| RepeaterBook Radius | 18 miles nominal |
| Linked System | ARCA Coordinated (OVARC) |
| Sponsor / Trustee | Trustee (OVARC) |
| Coordination | ARCA |
| AllStarLink Node |
Node 604785 stats.allstarlink.org |
| Network & Inter-Tie | AllStar Node 604785 |
| Official Website | https://www.azfreqcoord.org/ |
Propagation & Line-of-Sight
Terrain & Elevation
Catalina Ground Profiling
Situated at ~3,081 ft AMSL in Pima County (Maidenhead Grid DM42mm). 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: