4
RECEIVE AND TRANSMIT
4-13
The functions for RTTY operation
D About RTTY reverse mode
Received characters are occasionally garbled when
the Mark and Space signals are reversed. This reversal
can be caused by incorrect TNC connections, setting
or commands.
To correctly receive reversed RTTY signals, select the
RTTY reverse mode.
On the Mode selection screen, touch “RTTY” to se- q
lect the RTTY mode.
After the RTTY mode is selected, touch “RTTY” again w
on the Mode selection screen, toggles between the
normal and reverse modes.
• “RTTY-R” appears when the RTTY reverse mode is se-
lected.
D Twin Peak Filter
The Twin Peak Filter changes the receive frequency re-
sponse by boosting 2125 and 2295 Hz for better copy-
ing of RTTY signals.
In the RTTY mode, push q
(C) one or more
times to select the “M-2” screen (Menu M-2).
Touch [RTTY]( w D) to display the “RTTY SET”
screen.
Touch the “Twin Peak Filter” item to select. e
Touch “ON” to turn ON the Twin Peak Filter. r
Touch [ t ](D) or push
(C) to return to the
“M-2” screen (Menu M-2).
NOTE: When the Twin Peak Filter is in use, the re-
ceived audio output may increase. This is normal;
not a malfunction.
Normal Reverse
170 Hz170 Hz
2125 Hz2125 Hz
BFOBFO
Space
Space
Mark
Mark
The L, R, C or D in the
instructions indicate the
part of the controller.
L: Left side
R: Right side
C: Center bottom
D:
Display (Touch screen)
Touch [RTTY]
Touch “Twin
Peak Filter”
Touch “ON”
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