Maintenance Handbook

SBS-800 Series Operator & Planned Maintenance Handbook
Chapter 7: Local Control
KH-1601-2 Issue 6
Page 57 of 80
7.2.4.8 RPM
Control Menu
Range
Mode
Tx
Power
Tx Freq.
Mute
Rain
Sea
Int.
Rejection
Sweep
RPM
Exit
The RPM function allows the operator to stop rotation (OFF), select Auto or one of three pre-defined
antenna rotation speeds.
Note 1
 Antenna speeds are configured at the factory and are enabled or disabled during setting to work
(refer to KH-1601-3 for more information).
 The RPM value set by selecting low, normal and high cannot be configured by the operator.
 Depending on the system configuration, different antenna speeds may not be available.
OFF: Antenna rotation is stopped.
Note 1
Low: Where enabled, the low antenna rotation speed configured during setting to work can
be selected for 48NM range mode only.
Low speed has a minimal improvement in the probability of target detection for other
range modes whilst reducing the update rate.
Normal: The standard antenna rotation speed configured during setting to work suitable for
24NM range mode only.
High
Note 2
: Where enabled, the high antenna rotation speed configured during setting to work
can be selected (subject to a suitable inverter/antenna combination) and only for 6nm
X-Band range mode.
High speed increases the update rate whilst reducing the probability of detection for
24NM and 48NM modes.
Auto
Note 2
: The system automatically selects the optimum antenna RPM for the selected range
mode. This is the default configuration. ‘Auto’ speed offers the best overall detection
performance for the selected range mode.
7.2.4.9 Exit control menu
Control Menu
Range
Mode
Tx
Power
Tx Freq.
Mute
Rain
Sea
Int.
Rejection
Sweep
RPM
Exit
Selecting Exit closes the Control menu and returns the display to the default menu. There is no Save
Changes button or function as any adjustments are immediately adopted.
7.2.5 SETUP/DEFAULT Menus
The Setup (configuration) is disabled in normal operation and cannot be accessed. Please refer to the
Commissioning handbook KH-1601-3 for details.
CAUTION
Incorrect configuration in the Setup menus can degrade the performance of the system or inhibit
operation. The Setup menus must only be used by a suitably trained technician/maintainer.
Note 1: Setting the antenna speed to OFF in the RPM menu must NOT be used as a primary
means of isolating the antenna and its sub-systems for safety critical purposes.
Note 2: Antenna speed selection is system dependant and is not available on all models. Please
consult with Kelvin Hughes Ltd for additional details.