kenwood cmos 200 manual

The Kenwood CMOS 200 is a high-performance marine VHF radio with DSC (Digital Selective Calling) capabilities, designed for reliable communication at sea. Features include 25W/1W power output, 55 US and 10 international channels, built-in GPS, Class D DSC, dual/tri-watch functions, large LCD display, waterproof construction (IPX7), and intuitive controls. Below are key sections for safety, features, installation, setup, operation, and troubleshooting.

1. Features at a Glance 2. Installation 3. First-Time Setup 4. Specifications 5. Controls and Settings 6. Connecting Devices 7. DSC Operation 8. Safety Features 9. Care & Maintenance 10. Regulatory Information 11. Troubleshooting

Features at a Glance

Key components: Main unit with LCD display, microphone with DSC button, mounting bracket, power cable, and GPS antenna.

Feature	Description
Power Output	25W (high), 1W (low) selectable
Channels	55 US, 10 international channels
DSC Capability	Class D DSC with built-in GPS
Waterproof Rating	IPX7 submersible protection
Display	Large backlit LCD with channel info
Watch Functions	Dual watch and tri-watch modes
Emergency Call	Red DSC emergency button
Scan Functions	Programmable and weather scan
Audio	Built-in speaker with external jack
Power Supply	13.8V DC negative ground

Installation

Unpack and inspect contents. Choose suitable mounting location.

Mount main unit: Use provided bracket in protected, accessible location.
Connect GPS antenna: Route cable to clear view of sky, connect to GPS port.
Power connection: Connect red wire to positive (+), black to negative (-) of 13.8V DC source.
External speaker: Optional connection for additional audio output.

WARNING! Ensure proper grounding and fuse protection. Route cables away from ignition sources.

First-Time Setup

Power on unit; initialize GPS and DSC functions.

GPS initialization: Allow 5-15 minutes for first GPS fix in open area.
MMSI programming: Enter 9-digit MMSI number in DSC setup menu.
Channel selection: Use channel selector to access marine bands.
Volume/squelch: Adjust volume knob and squelch for clear reception.

CAUTION! MMSI number cannot be changed once programmed. Verify accuracy before confirming.

Specifications

Frequency Range: 156.000-157.425 MHz (Rx/Tx)
Power Output: 25W high, 1W low power
Channels: 55 US, 10 international, 6 weather
DSC: Class D with built-in GPS receiver
Waterproof: IPX7 standard (1m for 30 minutes)
Display: Backlit LCD with channel, GPS, DSC info
Power Supply: 13.8V DC ±15% negative ground
Current Drain: 5A max transmit, 0.5A receive
Operating Temp: -15°C to +55°C
Dimensions: 180W × 70H × 150D mm

Controls and Settings

Front Panel: Power/Volume knob, Channel selector, 16/9W power switch, Function button, LCD display.

Microphone: PTT, DSC emergency button, channel up/down, Hi/Lo power, menu access.

Menu Functions: DSC setup (MMSI, position, calls), scan programming, dual/tri-watch, display contrast, squelch levels, GPS settings, factory reset. DSC Features: Individual, group, and all-ships calls; position requests; distress calling.

Connecting Devices

External speaker, second station, NMEA 0183 instruments.

Turn off power before making connections.
External speaker: Connect to speaker jack for additional audio.
NMEA instruments: Connect NMEA out to chartplotter for position sharing.
Second station: Optional remote microphone connection.

Tip: Use marine-grade connectors and waterproof sealant for all external connections.

DSC Operation

Digital Selective Calling for emergency and routine communications.

Distress call: Lift red cover, press and hold DSC button for 3 seconds.
Individual call: Select station MMSI, choose working channel, send call.
Position request: Send position request to another DSC-equipped vessel.
Receive calls: Accept incoming DSC calls and switch to working channel.
Call log: Review received and sent calls in DSC memory.
Test call: Perform DSC test to shore station (not distress).

WARNING! Distress calls are transmitted to all stations. Use only in genuine emergencies.

Safety Features

Emergency DSC: Single-button distress calling with GPS position. Waterproof construction: IPX7 rating for marine environment. Channel monitoring: Dual/tri-watch for monitoring multiple channels simultaneously.

Care & Maintenance

Regularly inspect connections and housing. Clean with fresh water and mild detergent. Check antenna and cable integrity.

CAUTION! Do not use high-pressure water jets. Ensure drain holes are clear. Store in dry location when not in use.

Regulatory Information

FCC Part 80: Marine VHF radio compliant with US Coast Guard requirements. Type accepted for DSC operation. Manufactured under license from Kenwood Corporation. For technical support and warranty service, contact authorized Kenwood marine dealers or visit www.kenwood.com/usa.

Troubleshooting

Symptom	Possible Cause	Corrective Action
No power	Power connection/fuse	Check 13.8V connection; verify fuse integrity; test voltage at terminals.
No GPS fix	Antenna obstruction	Ensure clear view of sky; check antenna connection; allow time for acquisition.
Poor reception	Antenna/SWR	Check antenna connection; measure SWR; ensure proper grounding.
DSC not working	MMSI programming/GPS	Verify MMSI programmed; ensure GPS position valid; check DSC settings.
Display issues	Power/contrast	Adjust display contrast; check power supply stability; reset unit if needed.

Reset: Menu > System > Factory Reset (erases all settings).

Service: Contact authorized Kenwood marine service center for repairs.