Kenwood TS-570D instruction manual Off, Repeater Operation

16 MAINTENANCE

Attempting to	1	The antenna was not connected	1	Check the antenna connection.	1
transmit results in the		correctly.		Correct as necessary.
“HELLO” message	2	The impedances of the antenna	2	Reduce the SWR of the antenna	1
appearing and the		and transceiver are not properly		system.
receive mode being		matched.
restored.
	3	The input voltage is outside 13.8 V	3	Correct the input voltage or use a	2
		DC ±15% (11.7 to 15.8 V DC).		12 to 16 V battery.
	4	An inappropriate DC power cable is	4	Use the provided or an optional DC	2
		being used.		power cable.
The transceiver has	1	The microphone gain was set too	1	When in SSB or AM mode,	15
low transmit power.		low.		increase the microphone gain.
	2	Poor antenna system connections	2	Check antenna connections.	1
		are causing high SWR.		Confirm that the antenna tuner is
				reporting a low SWR.
VOX does not	The VOX gain was set too low.		Increase the gain via Menu No. 16.		17
operate.
Linear amplifier does	1	The linear amplifier control relay is	1	Change Menu No. 39 to ON.	18
not operate.		OFF.			61
	2	The REMOTE connector wiring is	2	Inspect the REMOTE connector
		wrong or faulty.		wiring and correct as necessary.
You cannot access	1	The repeater requires a subtone	1	Review “FM REPEATER	24
and use 10￿meter		frequency for access.		OPERATION” and select the
band repeaters.				correct frequency and type of
				subtone.
	2	You are not operating split	2	You must transmit on the	24
		frequency.		repeater’s input frequency and
				receive on the repeater’s output
				frequency. Refer to “FM
				REPEATER OPERATION”.
Digital operation	1	Physical connections between the	1	Re-check all connections using this	62
results in few or no		transceiver, computer, and TNC or		manual, your TNC/MCP manual,
connects or contacts		MCP are incorrect, or software		and your computer hardware
with other stations.		settings in the TNC or MCP are		manual as references.
		wrong.
	2	Different transmit and receive	2	Confirm that the RIT and XIT	23,30,
		frequencies are being used.		functions are switched OFF.	32
				Confirm that you are NOT
				operating split frequency.
	3	The levels between the transceiver	3	Adjust TX and RX levels using	18
		and the TNC/MCP are incorrect.		Menu Nos. 33 and 34, and level
				controls on your TNC/MCP.
	4	Your transmitted signal or the	4	Reorient/relocate your antenna or	—
		incoming receive signal is too		increase your antenna gain.
		weak.
	5	The TX delay time parameter in	5	Set the TNC/MCP TX delay time to	—
		your TNC/MCP was incorrectly set.		more than 300￿ms.
Attempts at	1	Problem with the RS-232C cable	1	Check the cable and cable	60
controlling the		that connects the computer to the		connections.
transceiver by		transceiver.
computer have failed.	2	Communication parameters set in	2	Use the same parameters in the	51
		your terminal program do not match		terminal program and the
		transceiver parameters.		transceiver. Refer to
				“COMMUNICATION
				PARAMETERS”.	—
	3	The serial port on your computer is	3	Disconnect the computer from the
		not functioning correctly.		transceiver, and run a utility
				program to test the computer serial
				port.

67