Sbas Setup - Simrad HS52 Instruction Manual

20222360 / E
For a Sensor unit with internal IALA beacon receiver built-in
(not available for HS52 due to IMO type approval) the mode
and frequency for the built-in beacon receiver can be set under
the title "Internal DGPS". For Sensor units with internal IALA
beacon receiver the setting in Internal DGPS is as follows:
•
Internal DGPS. To activate the internal beacon receiver the
mode AUTO or MANUAL need to be selected. In mode
AUTO the IALA automatically selects which station to
track. If the radio signal is week the mode MANUAL could
be preferable, especially for a vessel that stays in coverage
of the same radio beacon for a long period of time. In the
mode MANUAL the radio will stick to the selected
frequency and not scan the entire frequency range every
time the signal get below a certain threshold.

SBAS Setup

For Sensor units with serial number 1200 or higher receivers
that utilize SBAS correction signals are built-in. For these
Sensor units the SBAS setup menu is used to select SBAS
satellites.
The following configuration settings are available:
• SBAS mode. The preferred option is to manually select
which two (or one) satellites to track. This forces HS52 to
use only the satellites listed. However, automatic search for
the Geo stationary satellites is available by selecting AUTO
to let the HS52 automatically search for the Geo stationary
satellites, but this option is not recommended due to less
control of the signals used. In order to not use SBAS select
OFF. The default setting is OFF.
• Test mode. EGNOS is not expected to be fully operational
before the second half of 2006. Up to now EGNOS transmits
on PRN 124 and 126. The recommended PRN is 124 as PRN
126 is mostly used for system testing. To be able to use
corrections from these satellites you need to enable test mode
MODE1 (ignore message type 0). Be aware that a SBAS
system is not recommended used as long as message type 0 is
received and test mode MODE1 and MODE2 are used. For
more information about the current EGNOS and EGNOS
Testbed system
(www.esa.int/export/esaSA/navigation.html). WAAS is at the
moment fully operational and transmits on PRN 122 and
PRN 134 and the test mode for WAAS should therefore be
set to NORMAL. Two more WAAS satellites are launched
status, see the
INSTALLATION
ESA homepage
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