4 SBF Reference
GEOLongTermCorr
Number:
5932
"OnChange"
interval: block generated each time MT24 or MT25
is received from an SBAS satellite
This block contains the decoded long term corrections transmitted in SBAS message types 24
and 25. Refer to section A.4.4.7 and A.4.4.8 of the DO-229 standard for further details.
Parameter
Type Units
Do-Not-Use
Description
Sync1
c1
Block Header, see 4.1.1
Sync2
c1
u2
ID
u2
Length
u2
1
byte
u4
0.001
s
4294967295
u2
1
week
65535
u1
ID of the SBAS satellite from which the message has been received (see
N
u1
Number of long-term corrections in this message. This is the number of
LTCorr
sub-blocks.
N
can be 0, 1, 2, 3 or 4.
SBLength
u1
1
byte
Length of the
LTCorr
sub-blocks in bytes
Reserved
u1[3]
Reserved for future use, to be ignored by decoding software
LTCorr
...
...
A succession of N
LTCorr
sub-blocks, see definition below
Padding
u1[..]
Padding bytes, see 4.1.5
LTCorr
sub-block definition:
Parameter
Type Units
Description
VelocityCode
u1
Velocity code (0 or 1)
PRNMaskNo
u1
Sequence in the PRN mask, from 1 to 51. Note that if the PRN mask No. from the
original message is 0, the corresponding long term corrections are ignored, and hence
not included in the
block.
IODP
u1
Issue of data - PRN.
u1
Issue of data - ephemeris.
dx
f4
1
m
Satellite position offset (x).
dy
f4
1
m
Satellite position offset (y).
dz
f4
1
m
Satellite position offset (z).
dxRate
f4
1
m / s Satellite velocity offset (x), or 0.0 if
VelocityCode
is 0.
dyRate
f4
1
m / s Satellite velocity offset (y), or 0.0 if
VelocityCode
is 0.
dzRate
f4
1
m / s Satellite velocity offset (z), or 0.0 if
VelocityCode
is 0.
da_f0
f4
1
s
Satellite clock offset.
da_f1
f4
1
s / s Satellite drift correction, or 0.0 if
VelocityCode
is 0.
t_oe
u4
1
s
Time-of-day of applicability, or 0 if
VelocityCode
is 0.
Padding
u1[..]
Padding bytes, see 4.1.5
377
Summary of Contents for PolaRx5TR
Page 1: ...PolaRx5TR Reference Guide Applicable to version 5 5 0 of the Firmware ...
Page 73: ...3 Command Line Reference Chapter 3 Command Line Reference 73 ...
Page 130: ...3 Command Line Reference COM1 gim CR R gim IonosphereModel off COM1 130 ...
Page 237: ...3 Command Line Reference COM1 237 ...
Page 279: ...3 Command Line Reference COM1 279 ...
Page 294: ...4 SBF Reference Chapter 4 SBF Reference 294 ...