51
4
RECEIVE AND TRANSMIT
D About RTTY reverse mode
Received characters are occasionally garbled
when the received signal is reversed between Mark
and Space tones. This reversal can be caused by
incorrect TNC connections, setting, commands, etc.
To receive a reversed RTTY signals correctly, select
the RTTY-R (RTTY Reverse) mode.
➥ During the RTTY mode, hold down [RTTY/PSK] for
1 second to select the RTTY-R mode.
• Check the received signal.
D Twin peak lter
The twin peak filter changes the audio frequency
response by boosting the mark and space
frequencies (2125 and 2295 Hz) for better reception
of RTTY signals.
➥ During the RTTY mode, push [APF/TPF] to turn
the twin peak filter ON or OFF.
• “ ” appears in the LCD and the indicator on
this switch lights green while the filter is in use.
NOTE: When the twin peak filter is in use, the
received audio output may increase. This is a
normal, not a malfunction.
Normal Reverse
Space
Mark
BFO
Space
Mark
BFO
170 Hz 2125 Hz 170 Hz2125 Hz
To Next Page
Loading...
