CAT Note 12

	Computer Automation Technology Fort Lauderdale, Florida	CAT Note 12
	Release Date: March 11, 2004 - Updated June 18, 2008
	Connecting a CAT to a Kenwood TKR-750 or a TKR-850 Repeater.

Connecting a CAT controller to a Kenwood TKR-750 or TKR-850 Repeater can be accomplished easily by following these two steps.

Step 1
Build an interconnect cable with two Male DB25 connectors on both ends of a 6-wire conductor cable. Connect the pins as follows: (Note: a pre-built cable is available for purchase under CAT part number CA-750).

The COR will be active high so dipswitch #1 should be set to the OFF position.

Step 2
Program the TKR-750 repeater using the configuration software supplied with the repeater.

PARAMETER	CONFIGURED AS
Frequency	Required RX and TX frequency pair
QT/DQT Dec.	Decoder Tone Frequency
QT/DQT Enc.	Encoder Tone Frequency
Ch Name	1
Multi Table	No
W/N	Wide
Power	Low
Op Mode	Duplex
Scan Add	No
CW ID	No

To set the repeater’s AUX Input/Output 5 accessory connector pin #24 as a COR output and the AUX Input/Output 6 accessory pin #25 as a TOR output click on (EDIT). From the drop down box click on (Function Port). Set the ports as shown in the table.

Function Port (AUX Select)
AUX Input/Output 1		AUX Input
AUX Input/Output 2		AUX Input
AUX Input/Output 3		AUX Input
AUX Input/Output 4		AUX Input
AUX Input/Output 5		AUX Output
AUX Input/Output 6		AUX Output

Function Port (AUX Output)
	Function	Logic Type
AUX Out #1	None
AUX Out #2	None
AUX Out #3	None
AUX Out #4	None
AUX Out #5	None
AUX In/Out 5	COR	Active High
AUX In/Out 6	TOR	Active High

To disable the repeater’s internal timers click on (EDIT). From the drop down box click on (Optional Features). Set the Repeater/EXT-PTT timeout timer to (OFF) and the Repeater Hold Time to (OFF).

Notes:
None

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Computer Automation Technology, Inc.
4631 N.W. 31st Avenue, Suite 142
Fort Lauderdale, Florida 33309

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