ICOM IC-703 사용자 설명서

38

4

RECEIVE AND TRANSMIT

DConnections for RTTY (FSK)

4

8

12

[ACC]

1

2

3

7

6

5

9

10

11

13

Rear panel

TU or TNC 

Personal computer

Rear panel
      view

Colors refer to connection
to the supplied ACC cable.

*

1

Connect SQL line when required.

MSEND (orenge)
GND (red)
FSKK (black)
SQL*

1

 (light green)

AF out (light blue)

■Operating RTTY

DRTTY (FSK) operation

qConnect a terminal unit as at above.

wPush

[

(

Y)

BAND]/[

(

Z)

BAND] to select the desired

band

.

e

P

ush [MODE] momentarily to select RTTY mode.

• After RTTY mode is selected, push [MODE] for 1 sec.

to toggle between RTTY and SSB-D modes.

r

While the quick set mode item “

Q2” is selected in

RTTY mode, rotate main dial to select 

RTTY or

åRTTY mode

.

• Push [DISPLAY] for 1 sec. to enter the quick set mode.
• Push [MENU] one or more times to select 

Q2.

• Push [DISPLAY] momentarily to return to normal oper-

ating mode.

t Rotate [AF] to set audio to a comfortable listening

level.

ySelect the desired FSK tone/shift frequencies and

keying polarity as at page 40.

u Rotate the main dial to tune a desired signal.

• Use [

(F-1)

1/4] in the M4 display when critical setting is

required.

• S

-meter indicates received signal strength.

• I

f the received signal cannot be demodulated, try se-

lecting

å

RTTY mode (or RTTY mode).

i Transmit a SEND signal from your TNC.

• T

he TX indicator lights red.

• T

he Po meter indicates transmitted RTTY signal

strength.

o

Operate the connected PC or TNC (TU) to trans-
mit RTTY (FSK) signals.

M4 1/4 TON AGC

[TX] indicator [MODE] Main dial

[DISPLAY]

[F-1]

[MENU]

[F-2]

[AF]

[

Y]

[

Z]

“RTTY” or “

åRTTY” appears