IC-M424G - Talkie Walkie ICOM - Free user manual and instructions
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| Product Type | Fixed-mount Marine VHF Transceiver |
| Brand | ICOM |
| Model | IC-M424G |
| Dimensions (W x H x D) | 160 mm x 90 mm x 120 mm |
| Weight | 1.1 kg (approx.) |
| Power Supply | 13.6 V DC (nominal), negative ground |
| Frequency Range | 156.000 to 174.000 MHz |
| Channel Capacity | All USA, Canadian, and International marine channels |
| Output Power (High/Low) | 25 W / 1 W |
| Receiver Sensitivity | 0.3 µV (12 dB SINAD) |
| DSC Function | Class D DSC (Digital Selective Calling) built-in |
| Dual Watch / Tri-Watch | Yes, monitors channel 16 and one or two other channels |
| Weather Channel Reception | Yes, with WX alert function |
| Waterproof Rating | IPX7 (submersible to 1 m for 30 minutes) |
| Display | Large dot-matrix LCD with backlight |
| Microphone | Waterproof, with speaker and keypad |
| Intercom Function | Yes, between transceiver and microphone |
| Maintenance | Clean with a soft, dry cloth; avoid solvents |
| Safety | Use only with specified antenna; disconnect power during installation |
| Spare Parts & Repairability | Contact authorized ICOM service center for parts and repairs |
Frequently Asked Questions - IC-M424G ICOM
How do I change the channel on the IC-M424G?
Rotate the channel selector knob clockwise to increase channels, counterclockwise to decrease. Press the 16/S key to jump to channel 16.
What is DSC and how do I use it?
DSC (Digital Selective Calling) allows you to send a distress alert or call other vessels. To send a distress alert, lift the red cover and press and hold the DISTRESS button for 3 seconds.
How do I adjust the squelch?
Press the SQL key, then rotate the channel selector knob to set the squelch level. Adjust until background noise just disappears.
Can I receive weather channels?
Yes, press the WX key to enter weather mode. The radio will scan active weather channels and automatically alert you to warnings.
How do I install the IC-M424G?
Mount the bracket using the supplied screws, connect the antenna cable (use a VHF antenna with a PL-259 connector), and connect power to a 13.6 V DC source. Ensure proper grounding.
What is the difference between high and low power?
High power (25 W) is used for long-range communication; low power (1 W) is for short-range or harbor operations. Press the HI/LO key to toggle.
Does the IC-M424G have a battery backup?
No, it is designed for fixed mount use with a continuous 13.6 V DC supply. For emergency backup, connect to a separate battery or use an optional backup power source.
What antenna do I need?
Use a VHF marine antenna with an impedance of 50 ohms and a PL-259 connector. The antenna should be tuned for the marine band (156-174 MHz).
What are the maritime rules for VHF radio use?
Operate on designated channels only (e.g., channel 16 for distress), keep transmissions brief, and monitor channel 16 when underway. Obtain a license if required by your country.
How do I perform a DSC test call?
Enter the MMSI of the vessel to call, press CALL, then SET. Select Individual Call and confirm. The test call will be sent; the recipient should acknowledge.
User questions about IC-M424G ICOM
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USER MANUAL IC-M424G ICOM
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Product information
Brand : ICOM
Model : IC-M424G
Category : Talkie Walkie