Kelvin Hughes Limited SXV-A1 用户手册
SharpEye™ SCV & SxV X-Band Radome Radar
Chapter 12: Corrective maintenance
KH-1650-CA issue 1
Page 54 of 60
12.3 Troubleshooting
Loss of video
and/ or
Loss of status
messages
If video ceases to be displayed and the SCV/ SxV is installed in a position
where a person can be within 15m of the antenna, as a precautionary measure
the operator should cease transmission immediately and investigate the
problem.
Transmission can be stopped by switching the SCV/ SxV system OFF. This
ensures that if the antenna has ceased rotation under fault conditions in such a
position that it is facing a person and further software faults occur, nobody is
accidentally irradiated in excess of the safe limits.
If the system fails to communicate after the initialisation period, isolate the
If the system fails to communicate after the initialisation period, isolate the
power to the system and ensure that both the DC and LAN cables are securely
connected and free from damage.
Check that the DC voltages being supplied to the system are within acceptable
limits. If the system randomly resets or is temporarily unavailable, check that the
DC input to the system is stable under load conditions and does not drop below
the recommended minimum DC input level noted in section 13.3.
Standard network diagnostic tools and software may be used to ensure data is
being output from the SCV LAN connection. If the system operates on a
network, try connecting the SCV directly to the display from the LAN cable or
diagnostic tools.
System
showing
Video and/ or
status
messages but,
interference or
poor returns
are present on
the display
sub-system
Ensure that there are no objects in the immediate vicinity of the system that
may be blocking or reflecting RF radiation back towards the radome. If this is
unavoidable, ensure that a blanking sector has been correctly configured to
cover the affected area (please refer to section 4 regarding blanking sectors).
It may be necessary to cover the objects with Radar Absorbent Material (RAM)
to attenuate unwanted reflections.
Where the display software permits:
1. Change the SharpEye™ transmission frequency. If the problem disappears
it may be being caused by interference from other transmitters in the local
vicinity.
2. Change the SharpEye power from High to Low power. Return the system to
High power on completion of any tests.
3. Mute the system on each available range mode and see if any interference
remains on screen. If a mute feature is not available, set a blanking sector
that covers the area of interference or the whole display are (i.e. 360°).
Fault reporting
If a problem persists and cannot be resolved, please contact Kelvin Hughes Ltd
with the following details:
1.
FAULT CONDITION: Describe the condition being experienced, the modes
or control commands that cause the issue and any error messages that
have been observed.
2.
BIT DATA: If the communications interface in use can display BIT data from
the SCV/ SxV, please advise the messages being displayed. A full list of BIT
data is available from Kelvin Hughes upon request.
3.
SCREEN GRABS: Where permissible and where the display software
permits, take screen shots of the display showing the affected video. If there
is no screen grab facility take a photograph or a short video. Photographs or
diagrams of the installation, where permissible, may also prove useful.
4.
INTERFERENCE: If the issue relates to an object that cannot be observed
on screen, describe the object, its distance from the radar and any other
conditions (e.g. metrological) that may have an impact on target detection.