Navman 11 User Manual
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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.