HP 8340B Manual page 313

5-17.
RF
OUTPUT POWER FLATNESS ADJUSTMENT
Reference
Performance Test: Maximum Leveled Output Power and Accuracy
Service Section:
RF Section
Description
This procedure adjusts the DUT's RF
output power flatness across the entire frequency range. Flat¬
ness
is
adjusted by
using an oscilloscope
to view the power meter's recorder output while sweeping.
Flatness corrections are
made by
modifying the
appropriate
Calibration Constants.
OUT OSCILLOSCOPE
Figure 5-61.
RF Output
Power Flatness Setup
Equipment
Oscilloscope
.................................
Power Meter
.................................
Power Sensor
................................
Power Sensor
................................
Adapters:
APC 3.5 (f) to APC 3.5 (f)
.....................
(required for
HP 8340B
to HP 8485A connection)
APC
3.5
(f)
-
Type
N
(m)
.....................
(required for HP 8341
B
to HP
8485A connection)
APC 3.5 (f)
to Type
N
(f)
.....................
(required for
HP 8340B to HP 8481A connection)
HP 1741A
HP 436A
HP 8485A
HP 8481A
HP P/N 5061-5311
HP P/N 1250-1744
HP P/N 1250-1745
HP 8340B/41B
Adjustments