Elecraft KAT500 Owners Manual - Manual (Page 11)

8
Icom Transceivers with AH-4 ATU Interface
Icom transceivers equipped with the interface connector for the Icom AH-4 ATU can operate the
KAT500 through the AH-4 interface.
Icom transceivers not equipped with the AH-4 interface can use the KAT500 as described under Other
Transceiver and Amplifier or Stand-Alone Transceiver on page 11.
Cabling
Cables with the proper connectors is required wired as follows.
Table 2. Icom AH-4 Interface Cable Wiring.
MOLEX CONNECTOR TO
ICOM TRANSCEIVER
SIGNAL
T-R-S CONNECTOR
TO KAT500
POWER CONNECTOR
TO KAT500
Pin 1 Key Tip NC
Pin 2 Start Ring NC
Pin 3 +12 VDC NC Center
Pin 4 Ground Shield Outer Shell
NOTES:
 Molex Connector: Pin 1 is at the triangular end of the connector.
 T-R-S is tip, ring and shield on a 3.5mm “stereo” plug. NC = No connection.
 Power Connector is a 2.1mm barrel type connector. NC = No connection.
Table 3. Icom Key Line Cable Wiring.
DIN CONNECTOR TO
ICOM TRANSCEIVER
SIGNAL
RCA TYPE
CONNECTOR TO
KAT 500
POWER CONNECTOR
TO KAT500
Pin 3 HSEND Tip NC
Pin 2 Ground Shell NC
NOTES:
 The DIN connector varies with the model of Icom transceiver. See your owner’s manual for
the specific connector required.