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MN002000A © 2004 Navman NZ Ltd. All rights reserved. Proprietary information and specifications subject to change without notice.
Message ID: 1005
Rate: Variable
Message Length: 25 words
Word No. Name Type Units Range
1-4 Message header
5 Header checksum
6-7 Set time (Note 1) UDI 10 ms ticks 0 to 4 294 967 295
8 Sequence number (Note 2) I 0 to 32 767
Status (9.0-9.15)
9.0 Station health Bit 1 = station bad
9.1 User disabled Bit 1 = user disabled
9.2-9.15 Reserved
10 Station ID UI 0 to 1023
11 Age of last correction UI
s 0 to 999
12 Number of available corrections UI 0 to 12
Correction status per satellite (Note 3)
j.0-j.5 Satellite PRN (Note 4) UI 1 to 32
j.6 Local ephemeris Bit 1 = ephemeris not available
j.7 RTCM corrections Bit 1 = corrections not available
j.8 RTCM UDRE Bit 1 = UDRE too high
j.9 Satellite health Bit 1 = satellite data indicates bad health
j.10 RTCM satellite health Bit 1 = RTCM source declares satellite bad
j.11 Corrections stale Bit 1 = received stale corrections
j.12 lODE mismatch Bit 1 = lODE mismatch
j.13-j.15 Reserved
25 Data checksum
Note 1: Set time is an internal 10 millisecond (T10) count since power-on initialisation enabled the processor interrupts. It is not used
to derive GPS time, but only serves to provide a sequence of events knowledge. The set time or T10 count references the receiver’s
internal time at which the message was created for output. The T10 range is approximately 71 weeks.
Note 2: The sequence number is a count that indicates whether the data in a particular binary message has been updated or
changed since the last message output.
Note 3: Only the correction status words for the number of available corrections reported in word 12 of this message are valid.
Note 4: The word number, j, ranges from 13 to 24.
Table 5-8 Message 1005 (DGPS status)
3.5.1.4 Message 1005 (DGPS Status)
This message contains DGPS status information
derived from the last set of differential corrections
processed by the receiver. The contents of the
‘DGPS status’ message are described in Table
3-8.