314 Keysight N9038A MXE Service Guide
Reference Assembly
A16 Reference Assembly Troubleshooting
E-Cal Reference
1. Disconnect Cable W18 from J705 as shown in Figure 9-3.
2. To start the instrument alignment procedure manually so that the E-Cal
signal can be captured press System, Alignments, Align Now, All on the
instrument.
3. Verify with a spectrum analyzer that the frequency and amplitude of the
E-Cal Reference signal at J705 is equal to that specified for it in Table 9-3,
as shown in Figure 9-6.
Figure 9-6 A16 Reference Assembly E-Cal Reference
The 50 MHz E-Cal signal is only used during an instrument alignment and will not stay on for any
length of time. To capture the signal you will need to use the Maxhold function of the spectrum
analyzer that you are using to verify the signal.