HP 8568B, Performance Tests And Adjustments Manual, Page: 44 / 313

8. Frequency
Response Test
Related Adjustment
Specification
Description
SYNTHESIZED SWEEPER
Slope Compensation Adjustment
SIGNAL INPUT 1
100 Hz to 1.5
100 Hz to 500 MHz
SIGNAL INPUT 2
100 to 1.5
Frequency response at both analyzer inputs is tested by slowly
sweeping a flat signal source over the frequency range and observing
the peak-to-peak variation in trace amplitude. The test is divided into
three parts. First, the response is tested from 20 MHz to 1.5
with a power-meter-leveled synthesized sweeper. Next, a frequency
synthesizer is used to check the response from 100
to 20 MHz.
Finally, SIGNAL INPUT 1 is tested from 100 Hz to 100 with a
function generator.
R E C O R D E R
O U T P U T
POWER METER
SPECTRUM ANALYZER
GNAL
N P U T
I I I I
POWER SENSOR
O P T I O N 0 0 1 . A D D 5 0 O H M P A D A N D A D A P T E R
Figure 2-11. Frequency Response Test Setup (20 MHz to 1.5
2-22 Performance Tests