Operation Manual

89-042 Issue 5 27
This screen, the Differential Data Monitor, shows the statistics of the differential
GPS, input through the RTCM port
3.27 Processor Memory
Only to be used by authorised service personnel
3.28 Report Rate
Only to be used by authorised service personnel
3.29 Receiver / Transmitter
Only to be used by authorised service personnel
3.30 Test Radio-Link
Only to be used by authorised service personnel
3.31 Log File
The Transponder logs all major events which occur during its operation. These may
be viewed as Unfiltered (all events), Alarms (alarm conditions only) or Security
(events directly affecting operation). Each screen will only display the latest 40
events in its category;.
The three digits are a running counter of the events, which wraps round (from 999
to 000). The characters following indicate the type of event, and a brief description.
When the log becomes full the oldest items are overwritten.
Use the up and down keys to highlight a particular log entry. The top line of the
display shows the timestamp for the selected log entry as date (DD-MM-YY), time
(HH:MM:SS) and elapsed time since power on (ClkCnt = D/HH:MM:SS.SS Note:
This count is incremental, eg hours and days only appear after appropriate periods
of time). The second line of the display shows the full text for the highlighted log
entry.
When the highlighted log entry is 'Last power down' the timestamp for the power
down event is contained within the full text of the highlighted log entry and not at the
top of the screen. For this special case the top line will be a null timestamp.