u-blox ZED-F9P Interface Description - Manual
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5.14.14 UBX-NAV-SAT (0x01 0x35)
5.14.14.1 Satellite Information
Message
UBX-NAV-SAT
Description
Satellite Information
Firmware
Supported on:
•
u-blox 9 with protocol version 27
Type
Periodic/Polled
Comment
This message displays information about SVs which are either known to be visible or
currently tracked by the receiver. All signal related information corresponds to the subset of
signals specified in
.
Header
Class
ID
Length (Bytes)
Payload
Checksum
Message Structure
0xB5 0x62
0x01 0x35 8 + 12*numSvs
see below
CK_A CK_B
Payload Contents:
Byte Offset
Number
Format
Scaling
Name
Unit
Description
0
U4
-
iTOW
ms
.
See the
for details.
4
U1
-
version
-
Message version (1 for this version)
5
U1
-
numSvs
-
Number of satellites
6
U1[2]
-
reserved1
-
Start of repeated block (numSvs times)
8 + 12*N
U1
-
gnssId
-
for
assignment
9 + 12*N
U1
-
svId
-
for
assignment
10 + 12*N
U1
-
cno
dBHz
Carrier to noise ratio (signal strength)
11 + 12*N
I1
-
elev
deg
Elevation (range: +/-90), unknown if out of
range
12 + 12*N
I2
-
azim
deg
Azimuth (range 0-360), unknown if elevation is
out of range
14 + 12*N
I2
0.1
prRes
m
Pseudorange residual
16 + 12*N
X4
-
flags
-
Bitmask (see
)
End of repeated block
Bitfield flags
This graphic explains the bits of
flags
UBX-18010854 - R04
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