MFJ-994B IntelliTuner Automatic Antenna Tuner
Instruction Manual
©
2004-2010 MFJ Enterprises, Inc.
35
Operation for FT
DX
-9000 series of radios
The transceiver is controlled by the MFJ-994B. To operate:
1. Press the [TUNE] button on the MFJ-994B for ½-2 seconds to initiate the tuning process. The
radio will automatically transmit a low-power carrier and start the tuning process. When tuning is
completed, the radio will stop transmitting and you will be ready for operation on this frequency.
Yaesu Radio Interface/MFJ-5124Y4
The FT-2000 series radio has a TX REQ input on the back that can be used in lieu of the REM
(REMOTE) input. If this option is chosen, you must use the MFJ-5124Y4 radio interface cable. With
this interface, control signals are connected between the radio and the tuner. With this cable the operator
can control the tuner and radio with a single push of the [TUNE] button on the front panel of the MFJ-
994B.
Connections for FT-2000 series of radios
1. Before connecting the MFJ-5124Y4 to your radio, set the maximum TUNE power of the radio as
follows:
a. On your transceiver, enter the Menu mode by pressing the [MENU] key momentarily.
b. Rotate the Main Tuning Dial knob until you see menu item [145 tGEn TUN PWR] on the
transceiver’s display.
c. Rotate the [SUB VFO-B] knob to select 20 watts for best SWR accuracy. For the FT-2000D,
we recommend that this be set to 50 watts if the user normally operates at 100 watts output
power (when power is turned down to 100 watts, the TUNE power will reduce to 25 watts).
If the operator normally has his FT-2000D set for the full 200 watts, then this should be set to
20 watts.
d. Press and hold in the [MENU] key for two seconds to save the new setting and exit to normal
operation. If you press the [MENU] key momentarily, the new setting will
not
be saved.
2. Insert the 3.5 mm stereo phone plug into the MFJ-994B RADIO INTERFACE jack.
3. Connect the RCA plug on the MFJ-5124Y4 to the TX REQ jack on the rear panel of the
transceiver.
4. Connect a 12V 1000 mA DC source to the MFJ-994B.
5. Push the [POWER] button on the MFJ-994B to the
in
position. The radio may be powered on
either before or after the tuner is powered on.
Operation for FT-2000 series of radios
The transceiver is controlled by the MFJ-994B. To operate:
1. Press the [TUNE] button on the MFJ-994B for ½-2 seconds to initiate the tuning process. The
radio will automatically transmit a low-power carrier and start the tuning process. When tuning is
completed, the radio will stop transmitting and you will be ready for operation on this frequency.
