Connections For Ft-847; Operation For Yaesu Cat Interface - MFJ MFK-5124Y Instruction Manual

MFJ-5124K/Y Radio Interface

Connections for FT-847

1. Before connecting the MFJ-5124 to your radio, setup the radio's CAT.
a. Press the [MENU] key momentarily to activate the Menu mode.
b. Rotate the [SUB-TUNE] knob to recall Menu #37 [CAT RATE],
and then rotate the [MEM/VFO CH] knob to change the setting to
"4800."
c. Press the [MENU] key momentarily to save the new setting and
exit to normal operation.
2. Turn the radio off.
3. Insert the 3.5 mm stereo phone plug into the tuner's RADIO
INTERFACE jack.
4. Insert the 2.1 x 5.5 mm coaxial power plug into the tuner's POWER
jack.
5. Insert the 8-pin modular plug into the MFJ-5124's TO RADIO jack.
6. Important: Make sure the DC power to the radio has been turned off.
7. Connect the DB-9 connector to the mating DB-9 connector, marked as
CAT, on the back of the radio.
8. The FT-847 does not have a DC power connection on its CAT port.
Connect a 12 volts DC 1 amp power supply, such as the MFJ-1316, to
the MFJ-5124's POWER jack. This will supply power to the MFJ-
5124 and the tuner.
9. See "Operation for Yaesu CAT Interface" below for operation.

Operation for Yaesu CAT Interface

The operation of the MFJ-5124Y/Y2 CAT interface is simple.
1. Turn on the radio. For the MFJ-5124Y2, turn on the tuner.
2. Press and hold the [TUNE] button on the tuner for 0.5 to 2 seconds to
start the automatic tuning. The radio will switch to AM mode, transmit
a carrier, and start the tuning process. When the tuning process is
completed, the radio will stop transmitting and return to its previous
mode. Press the [TUNE] button on the tuner briefly will place the
tuner into bypass mode.
Note the (TUNE) key on the radio will not operate the Yaesu radio's CAT
interface.
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Instruction Manual
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