The Garmin Signal™ RM 100 Remote Microphone (Part Number: 010-02952-00) is a premium wired remote station handset designed to expand marine VHF radio and communications control across secondary helm stations, flybridges, or interior quarters. Featuring a rugged, IPX7 waterproof housing with an intuitive button layout, high-clarity speaker, and noise-canceling microphone, it delivers crisp voice transmission and clear audio reception in noisy maritime environments. Built for plug-and-play integration with compatible Garmin VHF fixed-mount systems, the RM 100 grants mariners full access to channel selection, distress calling, and radio menus without having to return to the primary radio unit, serving as a dependable, space-saving helm extension for commercial and recreational vessels alike.

In the Box

Garmin Signal^™ RM 100 head unit
Fist mic
Sun cover
Remote station power and external audio cable with fuse (2 m)
Fist mic power cable with fuse (2 m)
Cable for Garmin BlueNet^™ network (6 m)
Mounting hardware
Mounting template
Documentation

Technical Specification

General
Unit size	Head Unit: 75 x 160 x 29 mm (3.0″ x 6.3″ x 1.2″) Fist Mic: 100 x 60 x 31 mm (3.9″ x 2.4″ x 1.2″)
Weight	Head Unit: 0.53 lb (240 g) Fist Mic: 0.54 lb (245 g)
Operating voltage	9.6 – 32 VDC
Water rating	IPX7
Display Type	color IPS LCD, capacitive touch
Display Size	3.5″ (89 mm)
Display resolution	640 x 480 pixels
Operating temperature	–20° to 55°C (–4° to 131°F)
Backlight	1,000 nits
Multi-language interface	✓

VHF Features
Adaptive noise cancellation	✓
Audio record and playback	✓
Auto squelch	✓
Dual/Tri watch	✓
Presets watch	✓
NOAA weather alert	✓
NOAA weather watch	✓
Intercom support	✓
AIS target display	✓
AIS collision and MOB alarms	✓

Audio
Max speaker output power	Fist Mic: 5 W RMS, < 1% THD
External speaker	✓
Max external speaker output power	15 W RMS, < 1% THD, 4 Ω

Tactical Features
Night vision mode	✓

Electrical Features
Typical current draw at 12 Vdc	Head Unit: 400 mA, 1.8 A max Fist Mic: 90 mA, 0.9 A max
Compass-safe distance	Head Unit: 70 cm (27.6″) Fist Mic: 40 cm (15.8″)