SRT CS100, Installation And Operation Manual

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Configuration using proAtoN
Page 31
7.5.1 GPS tab
The GPS tab shows the status of the GPS receiver built into the transceiver. This provides an indication of the
quality of the GPS satellite signals being received along with the current position of the transceiver.
At least four satellites with a carrier to noise ratio in excess of 40 dBHz are required for an acceptable position
fix. Relocating the transceiver or connecting an external GPS antenna can help improve the signal quality and
resulting position accuracy.
The internal GPS receiver supports SBAS (Satellite Based Augmentation Service) to enable improved
accuracy and integrity of GPS position fixes. The availability of SBAS depends on the installation location of
the transceiver (the WAAS SBAS service covers most of the US and the EGNOS service covers Europe).
7.5.2 Serial data tab
The serial data page shows all data output from the transceiver in NMEA0183 / IEC61162-1 format. It is also
possible to send NMEA0183 / IEC61162-1 commands to transceiver if required for technical support or custom
configuration. A facility to record the data to a file is provided by clicking the ‘Log to File’ button.
Certain sentence types can be filtered out of the output window by checking the relevant sentence type in the
‘Filters’ section of this tab.
7.5.3 Diagnostics tab
The Diagnostics tab provides system version and status information. This information may be required when
requesting technical support for the product. The Diagnostic tab does not work when proAtoN is connected to
the NMEA0183 port, it only works when it is connected to the USB port.
AtoN Details
● The connected AtoN Type is displayed as Type 1 or Type 3
● The application and bootloader software versions for the connected AtoN are displayed
● The serial number of the connected AtoN is displayed
Power status
● The VHF antenna VSWR (Voltage Standing Wave Ratio) as measured at the last AIS transmission is
displayed. This value is for indication only. A value better than 3:1 is expected for a good antenna
system. The alarm limit for antenna VSWR is set to 5:1. A perfect antenna would give a VSWR of 1:1.
● The system supply voltage is displayed in volts. The system supply voltage is generated internally
and a fault with the system supply indicates an internal fault.
Active alarms
The transceiver incorporates BIT (Built-In Test) routines which continuously monitor key operating parameters.
Should an integrity test fail the failure will be indicated in the active alarms area.
Alarm text Description / Resolution
Tx Malfunction A transmitter malfunction has been detected - please
contact your supplier.
Antenna VSWR exceeds limits The VHF antenna VSWR is above the permitted limit.
Check the VHF antenna, cable and connections are
sound. The VSWR measured at the last transmission
is displayed on the proAtoN diagnostics tab.
Rx Channel 1 malfunction A receiver malfunction has been detected - please
contact your supplier.
Rx Channel 2 malfunction A receiver malfunction has been detected - please
contact your supplier.