HP 8559A Operation And Service Manual page 68

PERFORMANCE TESTS
FREQUENCY RESPONSE (Cont'd)
4-19.
Sweep Oscillator:
CW Frequency
MARKERS
SWEEP MODE
SWEEP TRIGGER
SWEEP-TIME-SEC
RF OFF-ON
ALC Switch
POWER LEVEL
RF BLANKING (Rear Panel)
FM-NORM-PL (Rear Panel)
1 kHz SQ WAVE (Rear Panel)
2. Center LO feedthrough signal on CRT with spectrum analyzer TUNING control. Adjust FREQ CAL for
a FREQUENCY GHz readout of 0.000.
Using 0.01 - 2.4 GHz sweep oscillator plug-in, connect equipment as shown in Figure 4-14. Connect
output of power splitter, through 20-dB attenuator, to spectrum analyzer input. Turn sweep oscillator RF
power ON and adjust ALC GAIN control for leveled output indication.
Use maximum possible ALC GAIN to avoid leveling errors during swept
measurements.
PERFORMANCE TESTS
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FIGURE 4-15. TYPICAL FREQUENCY RESPONSE FOR .O1 TO 2.4 GHz
NOTE
MODEL 8559A
............
OFF
.
AUTO (or TIME)
EXT
100
............
OFF
EXT
Midrange
ON
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NORM
............
OFF