Louder. Stronger. Trail-proven.
The Rugged Radios RK-G4-SPK Rambler Plus GMRS Radio Kit is your go-to solution for high-power off-road communication — now with an external speaker for louder, clearer audio in loud UTVs, Jeeps, and chase trucks.

With 45 watts of GMRS output and the Rugged Stealth Antenna included, this kit offers long-range clarity without the need for a ham license. Whether you're deep in the desert or leading a convoy, the -RK-G4-SPK ensures your team stays connected with pro-level reliability.

- High-Power Output: 46.8 watts of GMRS power for long-range communication in off-road and overland environments

- AMPLIFY 2.0 Transmit Amplifier: Mitsubishi-built amplifier delivers stable, high-output signal even in rugged terrain

- RIDEui™ User Interface: Intuitive LED screen and user-friendly menu system designed for trail use and race conditions

- AMPS Mount Compatible: Standard AMPS bolt pattern allows direct mounting to RAM systems, dashes, and cages

- 15 GMRS Channels: Covers all standard GMRS channels (1–7 and 15–22) for plug-and-play operation

- 8 GMRS Repeater Channels: Pre-programmed for use with extended-range repeater towers

- 259 Privacy Codes: 51 CTCSS and 208 DCS options to secure your communication channel

- Split Tone Capable: Adjustable tone code and split-tone functionality for full repeater compatibility

- Quick-Access Controls: P1 and P2 programmable shortcuts plus HWY button preset to Channel 19

- Selectable Power Modes: High / Medium / Low power options for optimized performance or battery conservation

- Bandwidth Modes: Supports both Narrow and Wide band transmissions

- Custom Display Settings: Adjustable LED display color and screen brightness for day or night use

- Audio Control Suite: Fully adjustable squelch, Roger Beep, and TX/RX alert tones

- Channel Protection: Keypad lock function prevents accidental changes during use

- External Speaker Port: Rugged external speaker included for loud environments like UTVs and open cabs

- Channel Scan & Dual Monitor: Monitor two GMRS channels at once or scan for active signals

- Listen-Only Mode: UHF receive-only mode for monitoring race, chase, or pit frequencies

- Rugged Housing: RFI-shielded aluminum chassis designed for high-vibration off-road setups

- Accessory Ready: 5-pin port allows plug-and-play integration with Rugged intercoms, headsets, and other accessories (via optional jumper)

- Compact Size: 5.5" W × 7" D × 1.5" H — fits easily in tight UTV and chase truck installs

Why Buy from Fenix Motorsports
We use what we sell. Every Rugged Radios kit we stock is handpicked for off-road performance, race reliability, and real-world ease of use — so you're ready to roll, no guesswork.