Tracking Statistics Query - Globalstar ST100 User Manual

8545-0194-01 v1.0
4.2.2.18. "Tracking Statistics" query
BYTE BITS
0 0 - 7
1 0 - 7
2 0 - 7
3-4 0 - 15
BYTE BITS
0 0 - 7
1 0 - 7
2 0 - 7
3 0 - 7
4 0 - 7
5 0 - 7
6-7 0 - 15 Time remaining in current interval
8 0 - 7 Track burst tries remaining
9-10 0 - 15 Time to next transmission in burst
Number of attempts remaining in
11 0 - 7
12-13 0 - 15 Time to next interleaved burst
Number of packets in interleaved
14 0 - 7
15-16 0 - 15 Total messages in mode
17-18 0 - 15
ST100 User Manual v1

TRACKING STATISTICS QUERY

PARAMETER
Leader
Length
Command Code
CRC
TRACKING STATISTICS RESPONSE
PARAMETER
Leader
Length
Command Code
Reset Flag
Suspended state
Resolution of next field
interleaved burst
burst message
CRC
Always a value of 0xAA
0x39 = Tracking Statistics Query
0x00 = Device has not reset since the last time this query was issued
0x01 = Device has reset since the last time this query was issued
0x00 = Tracking is fully suspended
0x01 = Tracking is partially suspended (operating at low battery rate)
0x02 = Tracking is running at normal schedule
0x00 = Next field represents a value in seconds
0x01 = Next field represents a value in minutes
(This allows the next field to express a much wider range of values
The time remaining until the next GPS fix and location report cycle. Resolution, minutes or
seconds, is shown in the previous field.
If a burst track message is in progress, this is the number of attempts left in the burst
Time, in seconds, until the next attempt in the burst, if a burst is not currently running,
If an interleaved burst is running, the number of attempts remaining in the burst is shown here.
If no interleaved message is running, this field will read 0.
If an interleaved burst is running, this is the number of seconds until the next burst attempt.
If no interleaved burst is running, this field is zero.
The number of packets in the interleaved burst message.
NOTE: As a "quirky feature" this value does not clear when the burst finishes, and if no
interleaved burst is running, this will show the number of packets that were in the last
interleaved burst that ran. It can be determined if a burst is currently running by examining
bytes 11, and 12-13. They will be non-zero if an interleaved burst is running
This holds the total messages transmitted since the track mode began. It will be a total of the
scheduled track messages and the interleaved messages.
Confidential & Proprietary Information
DESCRIPTION
0x5
DESCRIPTION
Always a value of 0xAA
0x13
0x39 = Tracking Statistics Query
while still only 2 bytes in size.)
will be zero.
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