Api 1 Spur Adjustment - Agilent Technologies 83620A Service Manual

API 1 pur Adjustment
6. On the synthesizer, change the fractional-N to CW 44.005 MHz. Press:
44.005 MHz
5 5
7. On the spectrum analyzer, set:
Center Frequency: 44.005 MHz
Reference Level: +10 dBm
Note the signal level:
Center Frequency: 44.0 MHz
Reference Level:
8. On the synthesizer, adjust A4R31 (see Figure 3-6) for minimum signal on
the spectrum analyzer.
he di erence in level between the signal noted in step 7 and the signal in
this step should be at least
API 2 pur Adjustment
9. On the synthesizer, change the fractional-N to CW 44.0005 MHz. Press
44.0005 MHz
5 5
10. On the spectrum analyzer, set:
Center Frequency: 44.0005 MHz
Reference Level:
Note the signal level:
Center Frequency: 44.0055 MHz
Reference Level:
11. On the synthesizer, adjust A4R30 (see Figure 3-6) for minimum signal on
the spectrum analyzer.
he di erence in level between the signal noted in step 10 and the signal in
this step should be at least
12. urn the synthesizer to standby and reinstall the A4 assembly.
3-16 Adjustments
Fractional-N Reference and API purs
All manuals and user guides at all-guides.com
dBm
0
40 dBm
0
70 dBc.
+10 dBm
dBm
0
40 dBm
0
80 dBc.
HP 8360