73BASIC OPERATION Receiving➀ Rotate [PWR/VOL] to turn power ON.➁ Rotate [SQUELCH] fully counterclockwise.➂ Adjust [PWR/VOL] to a suitable listening level.➃ Rotate [SQUELCH] clockwise until the audio noise disap-pears.➄ Select a channel. See pgs. 5–6 for details.• When a signal is received:➧ The squelch opens.➧ Audio is emitted from the speaker.➧ “BUSY” appears in the function display.➅ When an interrupting signal is received, rotate [SQUELCH]deeply clockwise.D Dual/tri-watch functionsThese functions allow you to conveniently check the distresschannel (ch 16) or, both the distress and leisure call channel(ch 9; programmable) while receiving another channel. Whenreceiving a signal on one of these channels, the transceiverstops on the channel until the signal disappears.Depending on your preference, select dual watch or tri-watchin advance in SET mode (p. 12). Dual watch is the defaultsetting.When dual watch is selected in SET mode:➥ Push [CH/WX • DUAL] for 1 sec. to start dual watch.When tri-watch is selected in SET mode:➥ Push [CH/WX • DUAL] for 1 sec. to start tri-watch.➥ Push any switch to cancel dual/tri-watch and return to nor-mal operation.USADUALUSADUALBUSYChecking channel 16every 2 sec.When receiving a signalon channel 16. Channel16 is monitored until thesignal disappears.USATRICALLUSATRIBUSYUSATRIBUSYChecking channel 16and the call channelevery 2 sec.When receiving a signalon channel 16, channel16 has priority.When receiving a signalon the call channel, thecall channel is monitoredwhile checking ch 16 in2 sec. intervals.

OPERATING RULES

I Front panel

I Microphone

I Function display

I Channel selection

weather channels

I Receiving

I Transmitting

I Scan function

I Call channel programming

I Entering SET mode

weather alert

I Unpacking

I Connections

I Mounting the transceiver

I Dimensions

TROUBLESHOOTING

VHF MARINE CHANNEL LIST

SPECIFICATIONS AND OPTIONS

Icom IC-M45A Instruction Manual

IC-M45A