Agilent Technologies N5230A Service Manual page 109

PNA Series Microwave Network Analyzers
N5230A
2. If the signal is not present, replace the A7 fractional-N synthesizer board. Refer to
"Removing and Replacing the A5 through A10 Boards" on page
3. If the signal is present, reconnect cable W1, and then continue with
Multiplier Output, All Bands" on page
Table 4-7 LO Path Frequencies
Network Analyzer
Band Frequency Band of
Problem (GHz)
0 .0003 to 0.001
1 0.001 to 0.010
2 0.010 to 0.040
3 0.040 to 0.748
4 0.748 to 1.500
5 1.500 to 3.125
6 3.125 to 4.167
7 4.167 to 5.250
8 5.250 to 6.250
9 6.250 to 8.333
10 8.333 to 10.500
11 10.500 to 12.500
12 12.500 to 13.500
a. With the analyzer's spur avoidance function OFF.
Service Guide N5230-90014
4-40.
Network Analyzer
Expected A7 Output
Source Frequency
Frequency (GHz)
Setting (GHz)
0.0007
0.006
0.030
0.400
1.200
2.300
3.600
4.800
5.800
7.300
9.500
11.500
13.000
Measurement System Troubleshooting
7-16.
"Checking the A6
Expected A6 Output
a
Frequency (GHz)
0.0084 0.0084
0.014
0.038
0.408
1.208
2.308
1.804
2.404
2.904
1.827
2.377
1.918
2.168
Troubleshooting
a
0.014
0.038
0.408
1.208
2.308
3.608
4.808
5.808
7.308
9.508
3.836
4.336
4-39