Northrop Grumman Sperry Marine VisionMaster FT, User Manual

Page: 475 / 533

Radar/Chart Radar User Guide System
65900010 14-13
When a user has logged in by entering a user name and password the
following additional diagnostic features are available:

S/W - displays version information of all operational system
software, including charting data.
Performance Monitor
The Performance Monitor folder displays the current operational
Transceiver (Tx/Rx); selected from the Radar menu, see Interswitch
Control.
Before using the Performance Monitor (PM) select the following operating
parameters:

Master Display (Interswitch systems)

Transmit mode

Range scale of 12 NM

Long Pulse (LP) transmission pulse rate

Manual clutter selection with A/C Rain and A/C Sea set to minimum

Radar tuning mode to AFC on

Gain setting at optimum level (if the setting is too low or too high
the four tuning arcs may not be visible).
Performance Monitor Operation
A non-logged on user can operate the PM and adjust the monitor mode
(Receiver or System) tune levels to determine if there has been a drop in
performance.
In a multi-node system the PM monitor tuning settings are distributed and
used by other nodes on the system.
To turn on the performance monitor (PM) tick the check box next to On.
In Operator mode the PM switches off automatically after 10
seconds.
If sector blanking is active the system displays a warning prompt informing
the operator that sector blanking is inhibited while the PM is switched on.
When the PM is operational and the monitoring mode tuning level is being
adjusted, four arcs are shown on the video circle. These arcs are
approximately 0.3NM apart and start at a range of between 6NM to
10NM. The arcs extend from 290° to 320° (S Band) or from 155° to 185°
(X Band), with respect to the heading line, see the figure below.