It is vital to have clear communication while on the water and Retevis kept that in mind when designing RM20. The speaker is placed on the front panel, without shielding, and the audio is crisp. High volume, up to 110dB; Support external speaker with 3.5mm pin, and features a separate squelch knob to eliminate unwanted background noise such as wind and engines.
Built with GPS receiver, simply power on and press DCS for 1 second, and your radio will instantly and accurately receive your GPS location no matter where you are, a feature especially important when in an emergency situation.
IP67 waterproof (1 m depth of water for 30 minutes) and Vibration drainage function(While pushing and holding [▲] and [▼], turn power ON. “ VIB WATER " appears.)
The weather at sea can be very changeable, and NOAA broadcast can help you up to date on weather trends and emergencies. This radio has 10 weather channels. When the weather alert function is on, 24 hour access to national All-Hazards and weather information on weather channels;NOAA Weather alarm Alerts you to nearby threatening weather.
It’s important that boaters use the correct channel when communicating on a marine VHF radio band. Channel 16 and 9 are very important common channels especially for recreational boats. The “16” key is for quick access to channel 16 and 9.
RM20 is a standard VHF DSC marine radio. In the event of an unexpected emergency, press DSC button and your MMSI and exact position will be sent to the Coast Guard and other vessels.
There is a separate “Emergency Alarm” button, press that button to make a distress call in emergency. The nearby shore station and other vessels with DSC equipped will receive this call, and it will alarm for quick rescue.
This compact radio is easy to be installed and easy to operate. The dot-matrix LCD screen allows you to read the parameters and settings easily and menu system with programmable soft keys gives you simplified functionality.
More About Retevis fixed mount and handheld marine VHF radios
General | |
Frequency Range | TX: 156.025~157.425MHz |
RX: 156.025~163.275MHz | |
Modulation | FM (16K0G3E), DSC (16K0G2B) |
Frequency Stability | ±10ppm |
Operating Voltage | DC13.8V (±15%) |
Operating Temperature | -20°C~+60°C |
Antenna Impedance | 50Ω |
Dimensions (W×H×D) | 153mm×67mm×152mm |
Weight | 742g (Hand MIC Included) |
Receiver | |
Receive Sensitivity | ≤0.22 µV |
Squelch Sensitivity | ≤0.22 µV |
Adjacent Channel Selectivity | ≥70 dB |
Spurious Response Rejection Ratio | ≥70 dB |
Intermodulation Rejection Ratio | ≥70 dB |
Max. Receive Current | ≤1.5 A |
Audio Output Power | ≥4.5 W (10% ) |
GPS Signal Format | NMEA 0183-2.0 |
Output Impedance | 4Ω (Speaker) |
Transmitter | |
Output Power | 25 W \ 1W |
Max. Frequency Deviation | ±5 kHz |
Spurious Emissions | ≤-70 dB (H ),≤-56 dB (L ) |
Adjacent Channel Power | ≥70 dB |
Audio Harmonic Distortion | ≤10 % |
Current Consumption | ≤5.5A (H),≤1.5A (L) |
Input Impedance | 2kΩ (MIC) |
Main functions:
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