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RECEIVE AND TRANSMIT
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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.
To receive reversed RTTY signals correctly, select the
RTTY reverse mode.
➥
In the RTTY mode, hold down [CW/RTTY] for 1 sec
-
ond to select the RTTY reverse mode.
• “RTTY-R” appears when the RTTY reverse mode is se
-
lected.
• Hold down [CW/RTTY] for 1 second again to select the
normal mode.
D
Twin Peak Filter
The Twin Peak Filter changes the receive frequency
response by boosting 2125 and 2295 Hz for better
copying of RTTY signals.
q
In the RTTY mode, push [MENU] to display the “M1”
screen (Menu 1).
w
Push [RTTY](F-4) to display the “RTTY” screen.
e
Push [TPF](F-4) to turn the Twin Peak Filter ON or
OFF.
r
Push [MENU] to return to the previous display.
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 Hz
170 Hz
2125 Hz
2125 Hz
BFO
BFO
Space
Space
Mark
Mark
D E C
T P F
S E T
RTTY
RTTY
RTTY–TPF
ON
D E C
T P F
S E T
Appears when the Twin Peak
filter is turned ON.
Push