What to do if Icom Transceiver is locked up?
- BBrett VelasquezAug 14, 2025
If your Icom Transceiver is locked up and not responding, a software error may have occurred. Turn the transceiver off, and then turn it on again.

What to do if Icom Transceiver is locked up?
If your Icom Transceiver is locked up and not responding, a software error may have occurred. Turn the transceiver off, and then turn it on again.
Why Icom Transceiver does not turn ON?
The Icom Transceiver may not turn on due to a bad connection to the power supply. Check the connection to the transceiver and power supply. Another possible reason is a blown fuse. If this is the case, repair the problem, and then replace the fuse.
What to do if there is little or no sound from Icom Transceiver speaker?
If you experience little or no sound from the Icom Transceiver speaker, it could be due to several reasons: * The squelch level might be set too high. In this case, set the squelch to the threshold point. * The volume level might be set too low. Adjust the volume to a suitable level. * The internal speaker might be off. Turn on the internal speaker.
Why Icom iC-M605 sensitivity is too low?
If the sensitivity of your Icom Transceiver is too low, and you can only hear strong signals, the antenna may be defective, or the coaxial cable connector is shorted or cut. Repair the problem and then reconnect to the antenna connector.
Why Icom iC-M605 communication cannot be established?
If communication cannot be established with your Icom Transceiver, the antenna may be defective, or the coaxial cable connector is shorted or cut. Repair the problem and then reconnect to the antenna connector.
How to fix Icom Transceiver when you cannot transmit?
If you cannot transmit or select high power on your Icom Transceiver, it may be because some channels are set for low power or receive only by regulations. Try changing channels. Alternatively, the output power might be set to low. Push [HI/LO] to select high power.
What to do if Icom iC-M605 Transceiver displays “NO POSITION” and “NO TIME”?
If your Icom Transceiver displays “NO POSITION” and “NO TIME”, it could be due to: the GPS antenna not being correctly connected, so check the GPS antenna connection; or the position and time have not been manually entered, so enter the position and time.
What to do if Icom iC-M605 Transceiver displays “??” instead of the position and time?
If your Icom Transceiver displays “??” instead of the position and time, it may be because 4 hours have passed since you manually entered the position, or the GPS position is invalid. In either case, enter the position.
Why Icom iC-M605 scan does not start?
If the scan function does not start on your Icom Transceiver, it may be because more than 2 favorite channels are not set. Set the Favorite channels.
| Brand | Icom |
|---|---|
| Model | iC-M605 |
| Category | Transceiver |
| Language | English |
Procedure for entering the 9-digit MMSI code during initial power-on.
How to select regular channels, Channel 16, and Call channels.
Procedures for listening and speaking over the transceiver.
Entering and deleting Individual and Group DSC IDs.
Manually inputting latitude, longitude, and UTC time for calls.
Managing actions after sending/receiving a DSC call.
Handling multiple DSC calls concurrently.
Procedures for initiating a distress call using simple or regular methods.
Includes Individual, All Ships, Group, and Test calls.
Handling Distress, Cancel, Relay, Individual, All Ships, and Group calls.
Configuring Automatic Acknowledgement and Channel Auto Switch.
Explains the purpose and function of AIS for collision avoidance.
Details for connecting DC power, microphone, speakers, and NMEA.
Detailed technical data for IC-M605 and IC-M605EURO models.
Solutions for power connection and blown fuse issues.
Solutions for squelch, volume, and internal speaker settings.
Solutions for channel restrictions and output power settings.
Solutions for issues with setting favorite channels for scanning.
Solution for missing MMSI code entry.
Solutions related to antenna or cable issues.