Intellitune Tm Menu; Swr Beep Menu; Beep Menu; Refresh Menu - MFJ Legal Limit IntelliTuner -998RT Instruction Manual

MFJ-998RT Legal Limit IntelliTuner
Meter
160
75/80
60
40
30
20
17
15
12
10
The memory resolution for non-amateur frequency bands between 160 and 10 meters is approximately
0.2 percent of the lower frequency of each band. There are over 2500 memory locations for each memory
bank, and each antenna bank has four memory banks (A-D).
Tuner settings are stored in memory separately for Antenna bank 1 and Antenna bank 2. This provides
memory for up to eight different antennas. Refer to Figures 15 and 16 for the on-screen Memory
indicator. Defaults are memory banks 1A and 2A ON. To clear an antenna memory bank, select the
antenna memory bank with the [ANT] button, 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, 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.
TM
Menu
IntelliTune
TM
Turns the IntelliTune 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, 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 for any reason, 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. Because the display is
not available for remote operation it is recommended that it is left off for quicker tuning. Default is OFF.
© 2011 MFJ Enterprises, Inc
TM
Automatic Remote Antenna Tuner
Frequency Range (MHz)
1.800-2.000
3.500-4.000
5.3305, 5.3465, 5.3665, 5.3715, and 5.4035
7.000-7.300
10.100-10.150
14.000-14.350
18.068-18.168
21.000-21.450
24.890-24.990
28.000-29.700
Figure 8 Tuning Window Resolution Chart
MFJ-998RT Version 1A
Instruction Manual
Memory Resolution
2
4
5 memory locations
7
10
14
18
21
25
28
14