ICOM ic-m801gmdss Benutzerhandbuch

■ Functions for receive (continued)

D

D Clarity control

Voice signals received from other stations may be diffi-
cult to receive. This may sometimes happen if a sta-
tion is transmitting slightly off frequency. In such cases,
you can compensate by using the clarity control.

q Push [F] then [RX 

CLAR

] to switch the function ON

and OFF. 

• “CLAR” and shifting value with direction appear.

w Rotate [CH] to improve the audio readability.

• Adjustable between ±150 Hz in 10 Hz steps.

[RX 

CLAR

]

[CH]

[F]

12

4

RECEIVE AND TRANSMIT

■ FSK operation

The transceiver has AFSK operation capability when
an AFSK terminal unit is connected— use J2B for
AFSK operation.

q Connect an AFSK terminal unit to the [AF/MOD]

socket as shown at right.

w Select the desired channel to operate AFSK mode.
e Push [MODE

SET

] several times to select J2B.

r Operate the AFSK terminal unit.

NOTE: 
Some transceivers may operate 1.7 kHz higher
than the IC-M801GMDSS’s J2B mode even when
the same displayed frequencies are in use.

1

5

11

15

To pins 1, 2

To pin 9

To pin 5

MOD output

MOD ground

AF input

AFSK terminal unit

AF ground

Tx/Rx control

Ground

To pins 3, 4

D

D Tuner through function

In the combination with IC-M801GMDSS and optional
AT-141, the tuner through function can be used.

By bypassing the tuner unit, the receiver gain in par-
ticular frequency band may be improved depending
on your antenna element length.

➥While  “TUNE” is displayed, push [F] then

[TUNE

THRU

] to tuner through function ON.

• “THRU” appears instead of “TUNE” indicator.
• Push [TUNE

THRU

] to turn the function OFF.

[TUNE 

THRU

] [F]