I
-
I
-
Externally leveling the Sweeper
leveling with a power meter
NOTE
The coupling factor is defined by the equation
leveled power
(P
lev)
-
detected power
(P
det).
Refer to Figure 2-1 for
locations of P lev and P det. After the coupling factor has been entered, the front panel knob
may be used to fine tune the displayed power to equal the actual leveled output power fP lev).
4. If the power meter and the sweeper power setting don’t agree, set the
coupling factor step size to 10
dR
and then use the
a
Q)
keys to adjust
the coupling factor up or down until the power meter and the sweeper
power setting agree.
5. Select the sweep tune by pressing
I‘TIME)
and then entering the desired
sweep rate.
NOTE
Due to the settling time required by power meters, it is recommended to use a 40 second sweep rate.
Unlike detector leveling, power meter leveling provides calibrated power out
of the leveled RF port.
See
also
To obtain flatness corrected power refer to “Creating User Flatness Correction
Arrays,
n
later in this manual.
2-8
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General