0xd3 - lbm dsp status block - 70 bytes – NavCom LAND-PAK Rev.N User Manual
Page 159
Technical Reference Manual Rev. N
Blk = All;
Blu = IOP w/Internal Radio
;
Red = IOP & LBM
;
Grn = Engine only
157
0xd3 - LBM DSP Status Block - 70 bytes
Record
Usage
Command - No
Response - Yes
Input: Not used;
Output: reports LBM performance information
Ref
Message Field Description
Data
Type
Units
Range
Scale
Byte
Count
STX
02
(hex)
U08
1
PRA1 99 (hex)
U08
1
PRA2 66 (hex)
U08
1
ID
d3 (hex)
U08
1
Length 0x0046
U16
2
W1
DSP Status – used for DSP Software
Debug
U16
2
W2
SF channel number
S32
500-180=320
to
500+180=680
-180 to 180 =
Satellite
Longitude
4
W3
SF signal FEC quality.
20 or less is considered good
U16
2
W4
Expected baseband frequency
S16 Hz
2
W5
Tracked baseband frequency
R64 Hz
8
W6
SF signal C/N0
R64 dBHz
8
W7
Oscillator frequency error
R64 Hz
8
W8
SF downlink circular buffer input pointer
U16
2
W9
SF downlink circular buffer output pointer
U16
2
W10
DSP Software major version
U08
1
W11
DSP Software minor version
U08
1
W12
True if SF parser is receiving valid
packets from downlink
U08
1
W13
True if DSP is locked on to downlink
signal
U08
1
W14
SF parser packet framing re-
synchronization count
U16
2
W15
Authorization Status (See 0xd1.W3)
U08
1
W16
True if SF is set to an alternate channel
(manual override)
U08
1
W17
Percentage of idle packets in received
SF data
U08
1
W18
Percentage of bad packets in received
SF data
U08
1
W19 Reserved
U16
2
W20 Reserved
U16
2
W21 Reserved
U16
2
W22 Reserved
U16
2
W23 Reserved
U16
2
W24
SF downlink circular buffer lost data
count
U16
2
W25
SF downlink Doppler (Filtered tracked-
expected)
R32 Hz
4
W26
Last Doppler Frequency
S16 Hz
2
CKSM Checksum
U08
1
ETX
03
(hex)
U08
1