ICOM ic-m801gmdss Benutzerhandbuch

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■ Controller (RC-25GMDSS)

q DISTRESS SWITCH [DISTRESS] (p. 18)

Push and hold for 5 sec. (approx.) to make a dis-
tress call.

w CALL SWITCH [CALL] 

Push and hold for 1 sec. to start calling after DSC
contents are setup.

e CANCEL SWITCH [CANCEL] 

Cancels a distress or DSC repeat call.

r HEADPHONE JACK [ ]

Accepts headphones.

• Output power: 2.5 mW with a 16 

Ω load 

(stereo/monaural)

t MICROPHONE CONNECTOR [MIC]

Accepts the supplied or optional microphone.

• See p. 65 for appropriate microphones.
• See p. 62 for microphone connector information.

y GROUP SELECTOR [GRP]

➥Selects groups in 20 channel steps and ITU ma-

rine channel groups. (p. 8)

➥Selects items during quick/initial set mode, etc.

u CHANNEL SELECTOR [CH]

➥Selects an operating channel within the selected

channel group such as ITU channels. (p. 8)

• User channels can be selected from 1 to 160 (max.)

in sequence regardless of the channel group.

➥Changes setting or value of the selected item

during quick/initial set mode, etc.

i RX/CLARITY SWITCH [RX

➥After pushing [F], turns the clarity function ON

and OFF. (p. 12)

• [CH] is used for clarity control.

➥During DSC watch mode, enters Received Call

Log screen. (p. 29)

• [CH] is used for distress and other call selection.

o POWER SWITCH [POWER] 

➥Push to turn the power ON.

➥Push and hold for 1 sec. to turn the power OFF.

!0 TX/TRANSMIT FREQUENCY SWITCH [TX

➥After pushing [F], displays the transmit fre-

quency, and opens the squelch. Checks and mon-
itors the transmit frequency while holding. (p. 10)

➥During DSC watch mode, enters TX memory se-

lect screen. (p. 40)

• [CH] is used for memory selection.

!1 VOLUME CONTROL [VOL]

Adjusts the audio output level.

• Audio does not come from the speaker when:

- The speaker OFF switch is turned ON.
- The squelch function is turned ON and no signal is

being received.

- Pick the handset up with speaker switch “

” position.

(p. 5)

- During DSC watch mode.

DISTRESS

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y

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!0

!1

!2

!3

!4

!5

!6

!7

Function display (pgs. 6, 7)