MFJ IntelliTuner -994B, Инструкция по эксплуатации

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MFJ-994B IntelliTuner Automatic Antenna Tuner Instruction Manual
©
2004-2010 MFJ Enterprises, Inc.
7
Back Panel
RADIO
INTERFACE
+
POWER
12VDC
850mA
REMOTE
PORT
ANTENNA TRANSMITTER
GROUND
WIRE
MFJ ENTERPRISES, INC.
STARKVILLE, MS USA
!
Do not connect WIRE and
ANTENNA at same time!
Figure 4. MFJ-994B Back Panel.
•
Power:
This jack accepts a standard 2.1 × 5.5 mm coaxial plug with positive center and negative
sleeve. The tuner requires 11-15 volts DC at up to 850 milli-amp. The use of a regulated supply is
not mandatory but is recommended for best performance. An optional 12 volts DC 1.5 amp power
supply, the MFJ-1316, is available from MFJ Enterprises, Inc.
WARNING: Do not apply voltages greater than 18 volts to this unit, or permanent damage
may result.
Note: When the tuner power is OFF, the tuner is bypassed and RF from the transmitter goes
directly to the antenna with no matching. When turned on, the tuner powers up in bypass
mode.
•
Remote Port:
A female DB-9 connector for connecting to the MFJ-994RC Remote Control,
allowing remote operation of the tuner. The MFJ-994RC duplicates all the front panel buttons except
[POWER]. In addition, there are two LEDs on the remote control. The red Tuning LED lights to
indicate tuning is in progress and the green SWR LED lights when the SWR is below the target SWR.
Note: To use the MFJ-994RC remote control, the [AUTO] button on the MFJ-994B automatic
tuner must be locked in; otherwise, Automatic mode is selected.
•
Radio Interface:
A 3.5 mm stereo phone jack for connecting to the tuner interface connector of
compatible radios. Most radios p13.8 VDC power through the tuner interface connector. If
separate power supplies are used to power the MFJ-994B, the MFJ-994B should be powered on first
so the radio knows an external tuner is attached. The radio will disable its internal tuner if it has one,
and use the MFJ-994B external tuner.
The Radio Interface works with radios that are compatible with Alinco EDX-2, Icom AH-3 and AH-
4, Kenwood AT-300, and Yaesu FC-30, FH-1 and FH-2. When connected to a compatible radio,
simply press the [TUNER] or [AT] button on the radio; for FH-1 or FH-2 compatible Yaesu, press the
[TUNE] button
on the tuner
to start the automatic tuning process. The radio will automatically switch
to CW mode, transmit a low power (typically 10 watts) carrier, and start the tuning process. Once the
automatic tuning is completed, the radio will return to its previous mode and power setting.
WARNING: Make sure the +13.8 volts connection on the radio’s tuner port is capable of
supplying the 850 mA of current required by the MFJ-994B.