90
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Page
Ref.
You cannot transmit even
though you press Mic
[PTT].
Packet operation results in
no connects with other
stations.
1 The microphone plug was not
inserted completely into the front
panel connector.
2 You selected a transmit offset that
places the transmit frequency
outside the allowable transmit
frequency range.
1 Your frequency differs from the
target station’s frequency.
2 The modulation level from the TNC
is incorrect.
3 There is multi-path distortion.
4 The TX delay of your TNC may not
be long enough.
1 Switch OFF the power, then insert the
microphone plug until the locking tab
clicks in place.
2 Press
[F], [SHIFT] repeatedly so neither
"+" nor "–" is visible.
1 Adjust your frequency using the Tuning
control.
2 Adjust the TNC modulation level
according to the TNC instruction manual.
3 Reorient or relocate the antenna. The
strongest signal does not always provide
the best operation on packet.
4 It is recommended to set the TX delay
parameter on the TNC to 300 ms by using
your computer.
Corrective Action
Probable Cause
Problem
6
23
17
79
—
79
Note: You can also use the RESET switch to initialize settings. Push the switch momentarily to do Partial Reset or press it for 1 second or longer to do
Full Reset {page 35}. No confirmation message appears. Use this switch when the microcomputer and/or the memory chip malfunction because of
ambient factors.
RESET switch
Viewed with the front
panel removed
