Hardware
Copyright © 2015 Coda Octopus Products Ltd
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F180R MOTION Sensor User and Reference Guide
The F180R System will accept standard RTCM-SC104
messages:
Version 1/2.2: 3,9,15,16,16t,18,19,20,21,22,59
Version 3: 1001, 1002, 1003, 1004, 1005, 1006
(Please note that only later releases of OEM4 based system
are capable of utilising the RTCM Version 3 messages. Please
contact CodaOctopus for exact information on your F180R
System model.)
The F180R System will accept RTCA Standard Type 7
messages.
Trimble open format and available as an output from their
instruments and some other 3rd party.
NOTE: The formats listed above are sent in binary format. Thus you may not see any
recognisable data if the data output is viewed on Hyperterminal. This is worth noting
when trying to troubleshoot F180R System input issues.
For further information on correction formats contact CodaOctopus.
3.5.4 PPS
The PPS timing output pulse is a TTL–level high–to–low (>2.4V to <1.2V) transition coincident
(to within 1µs) with the PPS strobe of GPS time. The pulse width is 1ms.
Figure 48: PPS timing output pulse
In order to minimise the chance of encountering problems related to time synchronisation we
recommend that a PPS converter is interfaced to one of the onboard serial ports on the
navigation computer and not to external or USB serial ports.
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