Ross ACO-4400A, User Manual, Page: 75 / 112

ACO-4400A User Manual (Iss. 03) Front Panel Menu System • 5–21
P NSig, B NSig
These menu lines display the stored calibration values for the selected channel number. The “P”
menu line indicates that the line of calibration values is for the Primary channel.
Similarly, the “B” menu line indicates that the line of calibration values is for the Backup
channel.
The “NSig=nnnn” sub-field displays the recorded value for the “no signal present and input
terminated” condition.
The “Sig=nnnn” sub-field displays the recorded value for the level of the normal amplitude
signal.
The “Fail=nnnn” sub-field displays the recorded value for the level of the reduced amplitude
signal that will be used to determine whether the input signal is too low or has failed completely.
Table 5.3 Channel Calibration
Channel
Primary Backup
NSig Sig Fail NSig Sig Fail
1
2
3
4
5
6
7
8
9
10
11
12