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Rear Panel
The rear panel of the YT-450 features six connectors.
ANT connector:
Connect a 50-ohm coax antenna feedline to this standard SO-239
connector.
GND connector
(wing nut): Connect to antenna system ground.
TX connector:
Connect a 50-ohm coax jumper cable from this standard SO-239 connector
to the ANT jack on the back of the transceiver.
PC connector:
This 9-pin D-sub connector connects to a personal computer via a 9 pin
female-to-female straight-thru cable. Use of this port is optional; it is provided for those hams
who would like to control their radio via computer. This is a pass-thru port to the
RADIO
port,
and is switched under software control by the YT-450’s microprocessor. The firmware of the
YT-450 has been written such that this will seem transparent to the user -- if using CAT to
control your FT-450/950, just plug the PC’s CAT cable into this port instead of the CAT jack on
the back of the transceiver.
RADIO connector:
This 9-pin D-sub connector is for connection to the FT-450/950’s
CAT jack. The YT-450 controls the PTT, power level, and operating mode via CAT commands
sent to the transceiver. The YT-450 also reads the operating frequency directly from the
transceiver so that it knows where to store tuning memory data.
POWER connector:
(DC coax jack): Connect to 12VDC supply capable of supplying at
least 500 mA. Center pin is positive.