Icom IC-7200

4-12
4
RECEIVE AND TRANSMIT
Operating in the RTTY (FSK) mode (Continued) ■
D Selecting the RTTY-R (RTTY reverse) mode
Received characters are occasionally garbled when
the receive signal’s MARK and SPACE are reversed.
This reversal can be caused by incorrect TNC con-
nections, settings, commands, and so on.
To receive a reversed RTTY signal correctly, select
the RTTY-R (RTTY reverse) mode.
Push q
MODE
to select RTTY mode.
Hold down w
MODE
for 1 second to toggle between
the RTTY and RTTY-R modes.
ReverseNormal
BFO
170
Hz
2125
Hz
170
Hz
2125
Hz
BFO
Mark
Space
Displayed freq
uencyDisplayed frequency
Mark
Space
D Selecting the Twin peak filter
The twin peak filter changes the receive frequency re-
sponse by boosting two particular frequencies (2125
and 2295 Hz) for better copying of desired RTTY sig-
nals.
Push q
MODE
to select RTTY mode.
 • Hold down
MODE
for 1 second to toggle between the
RTTY and RTTY-R modes.
Hold down w
M-CH/RIT
SET
for 1 second to enter the Quick
Set mode.
Rotate e [M-CH] to select “TPF”, then rotate [DIAL]
to turn the twin peak filter function ON or OFF.
 •Thereceivedaudiovolumemaybecomegreaterwhen
the twin peak filter is ON.
Push r
M-CH/RIT
SET
to exit the Quick Set mode.
OFF (default)
[DIAL] [M-CH]
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