Operating Guide
4
Keysight N4000/1/2A Operating and Service Manual
31
All of the operator’s checks are performed using a Keysight Noise Figure Analyzer
with firmware version A.01.01 and above. This can be used to perform an
operational verification check.
Operator’s check
The operator’s checks in this section should be performed if failure of the SNS
series smart noise source is suspected. The checks can be used only to verify that
the SNS series smart noise sources are producing a broadband noise spectrum.
They cannot be used to check the units against specifications.
Operator’s check for data communication
The following procedure checks that the SNS can transfer the ENR data to the
NFA.
1
Remove any cables from the NFA input and SNS drive.
2
Press the
Preset
key. Wait until the preset routine is complete before
proceeding.
3
Press the
ENR
key.
4
Press the
SNS Setup
menu key.
5
Press the
Preference
menu key and set it to
Preference (SNS)
.
6
Press the
Auto Load ENR
menu key and set it to
Auto Load ENR (Off)
.
7
Connect the SNS to the NFA Port using the multi-pin 11730 cable, as shown in
.
NOTE
The operator’s checks are designed to find a fault in the SNS. However, the fault
could equally be with the cable and this should also be checked.
NOTE
The preset condition used is the NFA default of
Preset (Factory)
.
