MFJ-993 IntelliTuner Automatic Antenna Tuner
Instruction Manual
©
2003-2004 MFJ Enterprises, Inc.
10
Power Bar Meter Menu
Shows the frequency, SWR, and bar meters for forward and reflected power. The top bar meter is the
forward power and the bottom bar meter is the reflected power. The numeric reading of forward power
appears at the end of the bar meters. A power scale is printed just below the display on the front panel.
Each power bar meter is consisted of 60 bar segments. Below 100 watts, each bar segment represents two
watts; above 100 watts, each bar segment represents 20 watts. The forward bar meter has a “peak hold”
feature. The peak meter hold function freezes the highest displayed bar segment of the forward power for
about one second, so that you can more easily read the meter. This function can be turned ON and OFF
in the Peak Hold setup mode.
0
25
50
75
100
Pwr
300
Figure 7. Power Bar Meter.
SWR Bar Meter Menu
Shows the frequency, SWR and SWR bar meter. A SWR scale is printed just below the display on the
front panel. The 15-segment SWR bar meter indicates SWR of 1.0, 1.1, 1.2, 1.3, 1.4, 1.5-1.6, 1.7-1.9,
2.0-2.4, 2.5-2.9, 3.0-3.9, 4.0-4.9, 5.0-9.9, 10.0-14.9, 15.0-19.9, and 20.0 to infinity.
1
1.2
1.5
2
3
5
SWR
Figure 8. SWR Bar Meter.
L-Network Menu
Shows the SWR and the configuration of the L-network matching circuit. The antenna symbol, on the
upper left corner, indicates the antenna side of the L-network. The capacitance value is displayed to the
left when it is on the antenna side and to the right when on the transmitter side. Inductance value is
shown in microhenries (µH) and capacitance value in picofarads (pF). See “Manual Tuning” on page 16.
Summary of Contents for MFJ-993
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