Timewave DSP-232, Operating Manual

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Chapter 13 Troubleshooting 13-17
MHEARD list doesn’t display recently
heard calls.
No calls listed, or all information is
very old PASSALL is ON . Turn PASSALL OFF
Monitored packets not correctly
displayed. You see monitored packets with
garbage characters or obvious
mistakes. PASSALL is ON .
Mismatch between terminal or
computer program serial settings, and
DSPs settings.
Turn PASSALL OFF.
Match settings between DSP and
computer program. For example, if
computer is set for 8 data bits and no
parity, set theDSP for
AWLEN 8 and
PARITY 0
, then issue a
RESTART
to cause these changes to take effect.
AMTOR and PACTOR Problems
Problem Symptom Cause Test/Solution
Unable to receive. No characters
appear on the screen. PACTOR—You’re able to issue
commands and receive confirmation
from the DSP, but no on-air data is
displayed.
AMTOR Station you’re tuned to isn’t sending
in the mode you are set to receive.
Mark/Space relationship
mismatched between DSP and signal
being received. Choose the correct receiving mode
for the transmission in progress.
Toggle
RXREV to opposite status,
e.g.,
RXREV T
, or use SIAM to
assist in identifying proper setting of
RXREV
.
Difficulty tuning in stations. When you try to tune stations it
appears that you can only get one of
the tones to track on the tuning
display at a time.
You aren’t able to get a definite
spread on the tuning bar when
tuning this station. WIDESHIFT is turned off while
you’re trying to receive a station
sending with a wide shift.
Station may not be a teletype
station—it may be transmitting fax.
Turn WIDESHIFT ON .
Try another station.