Frequency Sweep Range - AEA CIA-HF Operating Manual

FL:xxx BW2.0: FH:xxx
FL:xxx BW3.0: FH:xxx
FL:xxx BW1.5: FH:xxx
MIN SWR:xxx at F:xxx
NORMALIZED Z:xxx
<xxx Fc:xxx xxx>
-xxx Fc:xxx +xxx
F4: Scale
To change the vertical axis' scale factor in the S, Z, X, and R screens, use the F4 softkey to scroll
through three sets of scale values. Use this feature to zoom in and out of a plot quickly.
Default values: 1.0-6.0
F5: Screen
Use the F5 softkey to scroll through the real time screens. Notice that the Logo Box will update as
you scroll through the screens.
Default: S screen

FREQUENCY SWEEP RANGE

During normal operation, the Analyzer continuously sweeps and plots a user-selected frequency
range. This range, termed the frequency sweep range, is defined by the width and center
frequency values.
Each tick mark on the horizontal axis represents an interval equal to the width value. When the
width is set to 100 kHz, for example, each tick mark represents an interval of 100 kHz. Thus, the
total frequency sweep range represented within the plot is 1000 kHz, or the sum of all ten
intervals. This can be simplified as Frequency Sweep Range = 10 x Width. The center frequency
value determines the midpoint of this 1000 kHz frequency sweep range.
With the EXTRA FEATURES function enabled, the Data Box displays the frequency sweep range
in three ways. For example, assuming the center frequency is set to 7.100 MHz and the width is
set to 100 kHz, the sweep range will alternately appear as "W:100K:DIV Fc:7.100", which
indicates the basic plot values and lets you calculate the actual range, "<6.600 Fc:7.100 7.600>",
which calculates the minimum, canter, and maximum frequency values represented in the plot,
and "-0.500 Fc:7.100 +0.500", which simply informs you that the Analyzer is sweeping 500 kHz
above and below the center frequency value.
Lower Frequency @ SWR 2:1, Higher Frequency @ SWR 2:1
Lower Frequency @ SWR 3:1, Higher Frequency @ SWR 3:1
Lower Frequency @ SWR 1.5:1, Higher Frequency @ SWR 1.5:1
Lowest SWR, Frequency at which MIN SWR appears
50-ohm Normalized value of Z expressed as real ±j
Imaginary components
Minimum, Center Frequency, maximum values in the frequency
sweep range
Lowest frequency in the sweep range (Fc - half width), Center
frequency, Highest frequency in sweep range (Fc + half width)
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