Ross ACO-4400A, User Manual, Page: 60 / 112

5–6 • Front Panel Menu System ACO-4400A User Manual (Iss. 03)
Signal Strength Menu
Figure 5.4 provides an example of the Signal Strength Menu.
Figure 5.4 Signal Strength Menu Example
The Signal Strength Menu provides a graphical view of the amplitude of all signals connected to
the ACO-4400A.
The signal bars that appear in the upper section of the display are arranged in the following order
(from left to right):
• Channel 1 Primary
• Channel 1 Backup
• Channel 2 Primary
• Channel 2 Backup
• Channel 3 Primary etc.
The maximum number of signal bar pairs displayed will be limited to the “Number of Channels”
setting elsewhere in the Menu System.
• If the Channel Type for a particular channel is set for “No Measurement”, then the signal
bars will not appear in the relevant position on the display.
• If the input(s) for a particular channel is/are missing, the signal bar(s) for that channel
will be displayed at minimum height.
• You may have more channels with signals connected, but these will not be displayed.
The amplitudes of the bars are scaled, so that signals of different nominal amplitudes are all
shown with approximately the same height bars on the display. So, for example, if a 600mV
TriSync signal is connected to a channel set as Color Black (300mV), the relevant signal bar will
be significantly higher than for any other channel with the correct signal present. Similarly, Color
Black connected to a TriSync channel will appear significantly lower in amplitude.
The widths of the bars in each channel pair are different - the Primary bar is wider than the
Backup bar.
The bottom line of the menu displays the actual detected levels of the Primary and Backup input
signals for the currently selected channel.
Channel # = POK X BOK X
The options in the field “#” are: 01 up to the “Number of Channels” setting.
Upon entering this menu, simply rotating the rotary control allows the user to select a channel to
display. Press the push-button to return to the Main Menu.
The options displayed in the fields “POK” or “BOK” are:
• PErr / BErr Primary / Backup - Error Detected
Channel # = POK X BOK X