Fltness Menu
The
in this menu help front panel users enter and edit
flatness correction parameters. These editing
are not
accessible over HP-IB.
To load correction arrays over HP-IB, the correction arrays must be
created in the controlling program and then downloaded to the swept
signal generator. The corresponding SCPI array creation and control
commands are given after the description of this feature.
The HP 8360 B-Series swept signal generator provide extremely flat
power to a test port, for testing power sensitive devices such as
amplifiers, mixers, diodes or detectors. The user flatness correction
feature of the swept signal generator compensates for attenuation and
power variations created by components between the source and the
test device.
User flatness correction allows the digital correction of up to 801
frequency points (1601 points via HP-IB), in any frequency or sweep
mode (i.e. start/stop, CW, power sweep etc.). Using a power meter
to calibrate the measurement system as shown in Figure F-l, a table
of power level corrections is created for the frequencies where power
level variations or losses occur (see Figure F-2). These frequencies
may be sequential linear steps or arbitrarily spaced. To allow for the
correction of multiple test setups or frequency ranges, you may save
as many as eight different measurement setups (including correction
tables) in the internal storage registers of the swept signal generator.
H P - I B
J
CORRECTED
, OUTPUT PORT
SENSOR
OUT
-
-
w
-
-
-
m
-
-
-
-
s
-
-
-
TEST
Figure F-l. Basic User Flatness Configuration Using an HP 4378 Power Meter
F-6 Operating and Programming Reference
Summary of Contents for 8360 B Series
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