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MFJ-925 Super-Compact IntelliTuner Automatic Antenna Tuner Instruction Manual

Yaesu Radio Interface/MFJ-5114Y

The MFJ-5114Y radio interface allows users of FC-30 compatible Yaesu transceivers to connect to the

MFJ-925 IntelliTuner™ Automatic Antenna Tuners. With this interface, control signals are connected

between the radio and the tuner. The operator can then control the tuner with a single push of the

(TUNE) key on the front panel of the radio. Supported Yaesu radios are FT-100, FT-450, FT-857, FT-

897, FT-950, and any Yaesu radio that supports the Yaesu FC-30 tuner.

Connections for FT-100

1. Turn the tuner off. Set jumper JP2 to the “Y” position.

2. Make sure jumper JP4 inside the MFJ-925 is installed.

3. Before connecting the MFJ-5114Y to your radio, follow the instructions in the radio’s manual for

installing the FC-20 automatic antenna tuner.

a. Press and hold the [FUNC] key for ½ second to activate the Menu mode.

b. Rotate the [SELECT] knob to recall Menu #61 [TUNER/ATAS], and then rotate the Main

Dial to change the setting to “tunEr.”

c. Press the [FUNC] key momentarily to save the new setting and exit to normal operation.

d. Turn the FT-100’s power off, then on again, to re-initialize the radio regarding the tuner

status.

4. Turn the radio off. Insert the 8-pin modular plug into the tuner’s RADIO INTERFACE jack.

5. Important

: Make sure the DC power to the radio has been turned off. The radio does not fuse the

DC power to the tuner, and damage to the radio can occur if the interface’s power connection

comes in contact with ground.

6. Connect the 8-pin mini DIN connector to the mating 8-pin mini DIN connector at the end of the

BAND DATA cable pigtail on the back of the radio.

7. Push the [POWER] button on the tuner to the in position and then power on the radio.

Operation for FT-100

The operation of the MFJ-5114Y radio interface is similar to the operation of the FC-20 described in the

Yaesu radio’s operating manual.

1. Press the [FUNC] key, as needed, to recall Operating Function Row 7 [MTR, TUN, PRO, VOX].

2. Press the [B](TUN) key on the radio for ½ second to turn the external tuner function on; the

“TUN” icon will appear bolded in the radio’s display.

3. Press and hold the [B](TUN) key on the radio to begin automatic tuning. The radio will

automatically transmit a low-power carrier and start the tuning process. Press the [B](TUN) key

again to cancel tuning in progress. When tuning is completed, the radio will stop transmitting and

you will be ready for operation on this frequency.

Note the [TUNE] button on the tuner

will not operate the MFJ-5114Y Yaesu radio interface.

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Alinco DX-801 Manual de instrucciones Pagina 30