7.1 GMRS Radio¶
50W GMRS two-way radio for vehicle-to-vehicle communication and group coordination.
Type: GMRS Mobile Radio
Model: G1-GMRS
Manufacturer: Rugged Radios
Product Page: Rugged Radio G1
Manual: User Manual
Mounting: Behind dash, next to STX intercom
Power Source: PMU OUT6 (25A capacity, CONSTANT)
Specifications¶
| Spec | Value |
|---|---|
| Output Power | 50W (max allowed for GMRS) |
| Frequency | 462-467 MHz (UHF) |
| Channels | 16 GMRS + repeater inputs |
| Current Draw | 1-2A receive, 15A transmit |
| Waterproof | IP67 |
| FCC License | Required (family license, no exam) |
Features¶
- CTCSS/DCS privacy codes
- VOX (voice-activated transmission)
- Channel scan function
- All-aluminum chassis
- RFI protection
Antenna¶
| Spec | Value |
|---|---|
| Model | Rugged Radios Stealth UHF-GP (ground plane) |
| Type | Low-profile tuned antenna (3.25" tall) |
| Frequency | 450-480 MHz |
| Gain | 2.0 dBi |
| Mount | A-pillar ditch light adapter (MT-ANT-ADPT) |
| Connector | NMO |
| Cable | RG58 or LMR-400 (50Ω impedance) |
Wiring¶
| Connection | Wire | Source | Notes |
|---|---|---|---|
| Power (+) | 14 AWG | PMU OUT6 | Via firewall grommet |
| Ground (−) | 14 AWG | START battery neg | Direct connection for RF performance |
| Antenna | RG58 coax | Roof antenna | Route away from power leads |
| Intercom | Integration cable | STX RADIO port | Audio/PTT/mute |
Installation Notes¶
- Direct battery ground required for best RF performance
- Route antenna coax away from power leads
- Keep coax length <25 ft for minimal signal loss
Outstanding Items¶
None - all specifications determined.