How to unlock the channel on my Icom IC-M73 Transceiver?
- FFrancisco GarciaAug 21, 2025
If you can't change the displayed channel on your Icom Transceiver, the lock function may be activated. Push [H/L•LOCK] for 1 second to cancel the lock function.
How to unlock the channel on my Icom IC-M73 Transceiver?
If you can't change the displayed channel on your Icom Transceiver, the lock function may be activated. Push [H/L•LOCK] for 1 second to cancel the lock function.
What to do if the displayed channel cannot be changed on Icom Transceiver?
Purpose | Marine Radio Service |
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Operating frequency | 156.025 - 157.425 MHz |
Antenna connector type | FA-S64V |
Number of antenna connectors | 1 |
Battery type | BP-254N |
Battery low indication | Yes |
Product color | Black |
Waterproof up to | 1 m |
Operating temperature (T-T) | -20 - 60 °C |
Number of batteries included | 1 pc(s) |
Depth | 30 mm |
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Width | 52.5 mm |
Height | 125 mm |
Weight | 320 g |
Covers severe risks including death, injury, fire, and explosion hazards.
Provides advice on usage, environment, cleaning, and modifications.
Outlines FCC and IC requirements for safe RF exposure during transmission.
Explains the transceiver's compliance with FCC rules for Class A unintentional radiators.
Step-by-step instructions for making an emergency call using Channel 16.
Locates and names buttons, keys, microphone, and speaker.
Explains functions of remaining buttons and describes SP MIC/Antenna connectors.
Details on channel number readout, battery icon, and primary status indicators.
Explains icons for ATIS, Call Channel, Weather, Power, and Busy status.
How to select operating channels and use the designated call channel.
Guide to choosing appropriate channel groups for different regions.
Steps for sending and receiving signals, including power settings.
Explains normal and priority scan modes for signal detection.
How to mark channels and begin scanning sequences.
Describes how Dualwatch and Tri-watch monitor channels.
Covers hazards like fire, explosion, and chemical exposure.
Important safety rules for the battery charging process.
A table listing issues, possible causes, and solutions.