About Rtty Reverse Mode; Twin Peak Filter - Icom IC-9100 Instruction Manual

D About RTTY reverse mode
Received characters are occasionally garbled when
the Mark and Space signals are reversed. This rever-
sal can be caused by incorrect TNC connections, set-
ting or commands.
lected.
normal mode.
D
The Twin Peak Filter changes the receive frequency
response by boosting 2125 and 2295 Hz for better
q
screen (Menu 1).
w
e Push [TPF](F-4) to turn the Twin Peak Filter ON or
OFF.
r Push [MENU] to return to the previous display.
When the Twin Peak Filter is in use, the re-
not a malfunction.
-
Normal
170 Hz
2125 Hz
-
Space
Mark
RTTY
D E C
RTTY–TPF
RTTY
D E C
Appears when the Twin Peak
filter is turned ON.
RECEIVE AND TRANSMIT
Reverse
170 Hz
2125 Hz
Space
BFO BFO
T P F S E T
Push
ON
T P F S E T
4
1
2
Mark
3
4
5
6
7
8
9
10
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