I Rtty Functions - Icom IC-7400 Instruction Manual

I RTTY functions

The transceiver has a number of convenient functions
for the RTTY operation that can be accessed from the
RTTY menu.
q Push [CW/RTTY] to select RTTY mode.
w Push [MENU] to select
e Push [F4
] to select the RTTY menu.
r Push one of the multi-function keys ([F2], [F4] or
[F5]) to select an item in the RTTY menu. See the
diagram below.
• Push [MENU] to return to the previous indication.
D D IN RTTY MODE
F 1 F 2 F 3
Push [F4]
• RTTY menu
F 1 F 2 F 3
Push [F2]
• RTTY decoder screen (p. 38)
F 1 F 2 F 3
D D About RTTY reverse mode
Received characters are occasionally garbled when
the receive signal is reversed between MARK and
Space. This reversal can be caused by incorrect TNC
connections, setting, commands, etc. To receive re-
versed RTTY signals correctly, select RTTY-R mode.
➥ While RTTY mode is selected, push [CW/RTTY]
for 1 sec. to select the RTTY reverse mode.
• "RTTY-R" appears when the RTTY reverse mode is se-
lected.
• Push [CW/RTTY] for 1 sec. again to select the normal
RTTY mode.
.
F 4 F 5
F 4 F 5
F 4 F 5
RECEIVE AND TRANSMIT
[MENU] [CW/RTTY]
Switches RTTY filter ON and OFF.
F 1 F 2
Push
[F4]
Push
• RTTY filter set mode (p. 37)
[F4] for
1 sec.
F 2
F 1
• RTTY set mode (p. 39)
Push
[F5]
F 1 F 2
Normal
170 Hz 2125 Hz
Space
BFO
Mark
4
F 3 F 4 F 5
F 3 F 4 F 5
F 3 F 4 F 5
Reverse
2125 Hz 170 Hz
Mark
BFO Space
36