Keysight N9000A - Verifying the 50 Mhz Calibrator Signal

Chapter 4 131
RF Section Troubleshooting
Troubleshooting
Verifying the 50 MHz Calibrator Signal
• Remove cable W9 from A8J337 RF Assembly(1) and measure the 50 MHz
calibrator signal on the cable end with a functioning Spectrum Analyzer. Refer
to Figure 4-1.
Figure 4-1 RF Assembly Cables Location
• If the L.O. assembly calibrator is functioning properly, the 50 MHz calibrator
signal will measure 50 MHz at −25 dBm ± 3 dB. See Figure 4-2. If this level is
incorrect, the L.O. assembly is most likely defective. If the level is within
tolerance, the RF assembly is most likely defective. Reconnect W9 at A8J337.
9
W8
W1
W5
W2
W
4
1
W9
W8
W1
1
W5
W2
W4