HP 8568B, Performance Tests And Adjustments Manual, Page: 88 / 313

20. LO Output
Amplitude Test
Specification
from 2.0 to 3.7
Description
The power level at the LO OUTPUT connected is measured as the
first L.O. is swept over its 2.0 to 3.1 range.
SPECTRUM ANALYZER
POWER METER
Figure 2-35. LO Output Amplitude Test Setup
Equipment
Power Meter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . HP
Power Sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . HP
Procedure
1. Press
PRESET
].
2.
Set
[
SWEEP TIME
)
to 100 seconds.
3. Calibrate power meter and sensor. Connect equipment as
shown in
Figure 2-35.
4. Observe the meter indication as the analyzer makes a complete
sweep. The indication should be + 4 across the full sweep
range.
5. Replace 50 ohm terminator
on
LO OUTPUT.
2-66 Performance Tests