JVC KENWOOD Corporation 31201110 用户手册

101

16 MAINTENANCE

1 Check the antenna connection.

Correct as necessary.

2 Reduce the SWR of the antenna

system.

3 Correct the input voltage or use a

12 to 16V battery.

4 Use the provided or an optional DC

power cable.

1 When in SSB or AM mode,

increase the microphone gain.

2 Check antenna connections.

Confirm that the antenna tuner is
reporting a low SWR.

Increase the gain via Menu No. 16.

1 Change Menu No. 39 to ON.

2 Inspect the REMOTE connector

wiring and correct as necessary.

1 Review “FM REPEATER

OPERATION” and select the
correct frequency and type of
subtone.

2 You must transmit on the

repeater’s input frequency and
receive on the repeater’s output
frequency. Refer to “FM
REPEATER OPERATION”.

1 Re-check all connections using this

manual, your TNC/MCP manual,
and your computer hardware
manual as references.

2 Confirm that the RIT and XIT

functions are switched OFF.
Confirm that you are NOT
operating split frequency.

3 Adjust TX and RX levels using

Menu Nos. 33 and 34, and level
controls on your TNC/MCP.

4 Reorient/relocate your antenna or

increase your antenna gain.

5 Set the TNC/MCP TX delay time to

more than 300 ms.

1 Check the cable and cable

connections.

2 Use the same parameters in the

terminal program and the
transceiver. Refer to
“COMMUNICATION
PARAMETERS”.

3 Disconnect the computer from the

transceiver, and run a utility
program to test the computer serial
port.

1 The antenna was not connected

correctly.

2 The impedances of the antenna

and transceiver are not properly
matched.

3 The input voltage is outside 13.8 V

15% (11.7 to 15.8 V DC).

4 An inappropriate DC power cable is

being used.

1 The microphone gain was set too

low.

2 Poor antenna system connections

are causing high SWR.

The VOX gain was set too low.

1 The linear amplifier control relay is

OFF.

2 The REMOTE connector wiring is

wrong or faulty.

1 The repeater requires a subtone

frequency for access.

2 You are not operating split

frequency.

1 Physical connections between the

transceiver, computer, and TNC or
MCP are incorrect, or software
settings in the TNC or MCP are
wrong.

2 Different transmit and receive

frequencies are being used.

3 The levels between the transceiver

and the TNC/MCP are incorrect.

4 Your transmitted signal or the

incoming receive signal is too
weak.

5 The TX delay time parameter in

your TNC/MCP was incorrectly set.

1 Problem with the RS-232C cable

that connects the computer to the
transceiver.

2 Communication parameters set in

your terminal program do not match
transceiver parameters.

3 The serial port on your computer is

not functioning correctly.

Attempting to
transmit results in the
“HELLO” message
appearing and the
receive mode being
restored.

The transceiver has
low transmit power.

VOX does not
operate.
Linear amplifier does
not operate.

You cannot access
and use 10 meter
band repeaters.

Digital operation
results in few or no
connects or contacts
with other stations.

Attempts at
controlling the
transceiver by
computer have failed.

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