Kenwood TM-255A Instruction Manual page 58

Problem Symptom
Packet operation
results in no connects
with other stations.
Probable Cause
Physical connections between the
transceiver, computer, and TNC are
incorrect, or software settings in the
TNC are wrong.
Different transmit and receive
frequencies are being used. You
must use the same transmit and
receive frequency for packet.
The modulation level from the TNC is
incorrect.
The 9600 bps rate setting is set
incorrectly.
The transmitted signal is too weak.
Tone, CTCSS, DTSS, or Page are
ON.
Corrective Action
Re-check all connections using this
manual, your TNC manual and your
computer hardware manual as
references.
Store the desired operating
frequency in a memory channel
using the "Simplex Channel Storage"
procedure.
Adjust the TNC modulation level per
instructions in "PACKET
OPERATION" and your TNC
manual.
Refer to "PACKET OPERATION" for
information on setting Menu B,
No. 77 correctly.
Reorient your antenna or increase
your antenna gain to improve your
signal strength at the other station.
Turn OFF Tone, CTCSS, DTSS, and
Page. Set the noise squelch
threshold as you would for voice
communications.
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