User's Manual Part 1

57
Temperature and frequency window
The temperature shown on the display of the AC is the internal temperature
of the device and can be considered as a good estimation of the temperature
inside the rack. The indication of the frequency is only present for some
transmitters, and allows to keep into consideration the different gains of
directional couplers with frequency. It can be set from the Settings menu.
RF powers window
This window shows the measures of the RF powers in antenna and the
unbalancing of the combiners, if any. The number of monitored powers,
especially unbalancing, changes depending on the transmitter. Each power
has an alarm upper threshold, beyond which the relevant indication starts
blinking. This window also shows the kind of measures, which can be
either average quadratic power (RMS, usually used for digital transmitters)
or peak envelopment power (PEP, usually used in analogue transmitters).
Main window
The main window contains the picture and a list of the AMs, numbered in
series starting from 1. Next to each number of the list, the ON/OFF status
of the module is displayed. If any anomaly prevent the correct
communication between the AC and a module, the relevant number would
blink and no status indication would appear.
The arrow buttons allow to move the cursor onto any of the AMs of the
transmitters and on the menu entries Alarm List and Settings.
Pressing the RET button while the cursor is on an AM, all of the monitored
parameters of that module are displayed. Each amplifier has two
associated screens called RF Powers and Power Supply: the first shows
the RF powers and the temperature of the amplifier; the second contains
the parameters of the power supply (voltages and currents). Note that
if the module doesn't communicate correctly with AC, all of the fields
are blank. To go to the next or previous screen press arrow buttons.
Press ESC to return to the main menu.
Alarm list
By pressing the RET button on the Alarm List entry in the main window,
the whole display shows the event list (log) of the transmitter. Each page of
this list contains 5 events sorted in reversed chronological order (the most
recent event is the first in the list), and a maximum of 26 pages are available