Icom IC-7400 Instruction Manual page 52

4
RECEIVE AND TRANSMIT
D D RTTY set mode
This set mode is used to set the mark and shift fre-
quencies, keying type, decode USOS function, etc.
• Setting contents
q Push [MENU] to select
select the RTTY menu.
w Push [F5
] to select RTTY set mode.
e Push [F1≤] or [F2 ≥] to select the desired set item.
r Set the desired condition using the tuning dial.
• Push [F3] for 1 sec. to select a default condition or value.
t Push [MENU] 2 times to return to
1.
Sets the mark frequency for RTTY operation.
• 1275, 1615 and 2125 Hz are selectable.
2.
Sets the shift frequency for RTTY operation.
• 170, 200 and 425 Hz are selectable.
3.
Selects the keying polarity from normal and reverse.
Key open/close = Mark/Space
Key open/close = Space/Mark
4.
Turn the USOS
(UnShift On Space)
Decode as letter code
Decode as character code
5.
Selects the new line code of the internal RTTY decoder.
CR: Carriage Return; LF: Line Feed
6.
Selects the number of the decoder indication from 2
or 3 lines.
39
, then push [F4 ] to
.
function ON/OFF
CR, LF and CR+LF
CR+LF only
F 1 F 2 F 3
Set item up/down
F 4 F 5