HP 8568B, Performance Tests And Adjustments Manual, Page: 45 / 313

8. Frequency Response Test
Note
Equipment listed is for three test setups, Figure 2-11, Figure 2-13, and
Figure 2-15.
Equipment
Synthesized Sweeper . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . HP
Power Meter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
A
Power Sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . HP
Frequency Synthesizer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . HP
Function Generator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . HP
Power Splitter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . HP
Adapter, Type N (m) to BNC (f) . . . . . . . . . . . . . . . . . . . . . . . . HP 1250-0780
Adapter, Type N (m) to BNC (m) . . . . . . . . . . . . . . . . . . . . . . . HP 1250-0082
Adapter, Type N (m) to Type N (m) . . . . . . . . . . . . . . . . . . . . HP 1250-0778
Adapter, Type N (m) to SMA (f) . . . . . . . . . . . . . . . . . . . . . . . . HP 1250-1250
Adapter,
(f) to (f) . . . . . . . . . . . . . . . . . . . . HP 1250-1749
Cable, SMA Connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . HP 5061-5458
Additional Equipment for
Option 001:
Minimum Loss Pad . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . HP
Adapter, Type N (f) to BNC (m) (7561) . . . . . . . . . . . . . . . . . . HP 1250-1534
Procedure
20 MHz to 1.5
1.
2.
3.
4.
Depress RANGE HOLD button on power meter.
5.
Select METER leveling on synthesized sweeper.
6.
Key in the following spectrum analyzer settings:
Press
PRESET
)
on spectrum analyzer and synthesized
sweeper.
Set controls as follows:
Power Meter
MODE . . . . .
RANGE HOLD . . . OFF
CAL FACTOR % . . . 100
Synthesized Sweeper
START FREQ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 MHz
STOP FREQ
1.5
SWEEP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SWEEP TIME . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120 s
POWER LEVEL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.00
Connect equipment as shown in Figure 1. The RECORDER
OUTPUT on rear panel of power meter is connected to LEVELING
EXT INPUT of the synthesized sweeper. One output arm of the
power splitter is connected directly to SIGNAL INPUT 2 of the
spectrum analyzer via
the
N-to-N adapter. The power sensor
connects directly to the other splitter output.
[CEN
TER
FREQUENCY) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
FREQUENCY SPAN]
............................................................................................
MHz
MHz
Performance Tests