Kelvin Hughes Limited SXV-A1 Manuel D’Utilisation
SharpEye™ SCV & SxV X-Band Radome Radar
Chapter 10: Operator instructions
KH-1650-CA issue 1
Page 46 of 60
10.5 Operational states
The following tables shows the basic operation states for the SharpEye
TM
SCV or SxV radome radar
Operational
mode
Description
OFF
DC power is OFF.
The system is switched OFF and cannot be operated.
No data is sent via LAN.
Switch ON/
Standby
DC power is ON
No RUN command is being received.
No RUN command is being received.
At initial power up the system enters a 30 second initialisation period.
The SharpEye
TM
processor carries out internal performance checks.
After the initialisation period the system enters a standby state waiting for a RUN
command via LAN from the external command and display system.
The SharpEye
TM
processor continues to monitor the system performance.
System warnings and BITE data are sent via LAN to the external command and display
system.
If a system critical condition is detected, a warning is sent via LAN to the external
command and display system and the system cannot be placed into Run mode.
RUN
DC power is ON.
A RUN command has been received.
A RUN command has been received.
The system starts transmitting.
Radar data is sent to the external command and display system via the LAN.
The SharpEye
TM
processor continues to monitor the system performance.
System warnings and BITE data are sent via LAN to the external command and display
system.
If a system critical condition is detected, a warning is sent via LAN to the external
command and display system and the system reverts to standby.
Low
Power
Mode
DC power is ON.
A RUN command has been received.
A RUN command has been received.
Operator selected: When the SCV/ SxV radome radar is connected to a processor/ display
option that supports radar radome configuration, Low Power Mode can
be selected for counter surveillance or covert operation.
Fault mode: Should the radome radar detect an internal fault condition which could
lead to early failure of the transceiver, i.e. a high VSWR, then the
transceiver switches to a Low Power state which permits low power
transmission to continue in the short term.
The built in test monitoring also outputs a “Low RF Power” warning
message if the RF power output falls below 12 W. The design is “fail-
soft” thereby providing graceful degradation in the event of single or
multiple transistor failures.
As a result of reduced output power, range performance will be reduced and the system may
not meet the expected operational detection performance.
Fault
Mode
DC power is ON.
A RUN command has been received.
The system has detected an internal processor fault condition and cannot be
operated.
See corrective maintenance for rectification action.