HP 8642A - Page 267

Model 8642A/B
Performance Tests
PERFORMANCE TESTS
4-13. SPURIOUS TEST
SPECIFICATION:
Electrical Characteristics
Non harmonic spurious
Performance Limits
100 dBc
94 dBc
Conditions
band HET-9
band 10
DESCRIPTION:
The RF output of the HP 8642 is viewed on a spectrum analyzer. The
8642's frequency is set to values where spurious performance problems are
most likely to be observed.
a D □ I | □
Dan DD anonn □ □ on
□ a DP aanna ^^ n
OO □□□ na aaann v^ OO
10 MHz
OUTPUT
RF OUTPUT
EXTERNAL
REFERENCE
RF INPUT
SPECTRUM
ANALYZER
HP 8642A/B SYNTHESIZED
SIGNAL GENERATOR
EQUIPMENT:
PROCEDURE:
Figure 4-9. Harmonics and Spurious Test Setup
Spectrum Analyzer HP 8566A
1. Perform a center frequency calibration on the spectrum analyzer.
2. Connect the instruments as shown in Figure 4-9.
3. Set up the spectrum analyzer as follows:
INSTRUMENT PRESET
SPAN 0 kHz
RESOLUTION BANDWIDTH 10 Hz
4. Set up the HP 8642 as follows:
INSTRUMENT PRESET
4-35