MFJ-998 Legal Limit IntelliTuner Automatic Antenna Tuner
Instruction Manual
©
2007-2010 MFJ Enterprises, Inc.
20
To clear an antenna memory bank, select the antenna memory bank with the [ANT] button and turn off
the power to the tuner. Then press and hold both [TUNE] and [C-UP] buttons while turning on the
power. A
DELETE BANK
message will appear.
To clear the memory for an antenna (all four banks), select the antenna with the [ANT] button and turn
off the power to the tuner. Then press and hold both [TUNE] and [ANT] buttons while turning on the
power. A
DELETE ANTENNA
message will appear.
“Total Reset” erases both antenna memories and returns all tuner settings to their factory default states.
To achieve this, turn power off, press and hold [TUNE], [C-UP] and [L-UP] buttons while turning on the
power. A
TOTAL RESET
message will appear.
Note: Pressing [TUNE], [C-DN] and [L-DN] buttons simultaneously overwrites the tuner memory
with the current tuner setting; settings with SWR greater than 3.0 will not be stored.
IntelliTune Menu
Turns the
IntelliTune
TM
tuning algorithm on and off. When
the
tuner cannot find an appropriate setting in
its memory, it begins its calculation function. It measures the complex impedance of the antenna (load) at
the transmitting frequency, and then it calculates the L/C components needed for a match. Then it fine-
tunes the component values. If for any reason the tuner cannot calculate the load impedance, it proceeds
to yet another method of calculation. If you wish, this function can be turned off. Default is ON.
SWR Beep Menu
Turns the audio SWR meter on and off. The audio meter is a series of beeps where one beep indicates
SWR of 1.5 or less, two beeps indicate SWR of 1.6 to 2.0, three beeps indicate SWR of 2.1 to 2.5, and
four beeps indicate SWR of 2.6 to 3.0. For SWR above 3.0, “SWR” (di-di-dit di-dah-dah di-dah-dit) will
be sent on CW. This functions independent of the acknowledgement beep setting. Default is OFF.
Beep Menu
Acknowledgement beep sounds each time a parameter is changed to acknowledge it. This also controls
the CW notification of “QRO”, “QRP” and “QRT”. This function can be turned OFF for silent operation,
and this is independent of the SWR beep setting. Default is ON.
Refresh Menu
When the refresh function is ON, the display is updated while tuning is in progress. Default is OFF.
Note: Refresh slows tuning progress as it takes time to update the display.
Radio Interface Menu
Selects the radio to be connected to the Radio Interface connector. Select
ALINCO/ICOM
to interface
with radios that are compatible with the Alinco EDX-2 tuner, Icom AH-3 and AH-4 tuners. Select
KENWOOD AT-300
to interface with radios that are compatible with Kenwood AT-300 tuner. Select
YAESU FC-30
to interface with radios that are compatible with Yaesu FC-30 tuner and Yaesu FT-100.
Select
YAESU MP/2K/9K
to interface with the Yaesu FT-1000MP series, FT-2000 series, FT
DX
-9000
series, and any radios that are compatible with Yaesu FH-1 or FH-2 remote control. If no connection is
connected to the Radio Interface connector, select
OFF
to disable the interface. See “Radio Interface”
section on pages 9 to 12 for more information. Default is OFF.
