u-blox ZED-F9P Interface Description - Manual
Advance Information
MGA-BDS continued
Byte Offset Number
Format
Scaling Name Unit Description
1 U1 - version - Message version (0x00 for this version)
2 U1[2] - reserved1 - Reserved
4 I4 2^-30 a0UTC s BDT clock bias relative to UTC
8 I4 2^-50 a1UTC s/s BDT clock rate relative to UTC
12 I1 - dtLS s Delta time due to leap seconds before the new
leap second effective
13 U1[1] - reserved2 - Reserved
14 U1 - wnRec week BeiDou week number of reception of this UTC
parameter set (8 bit truncated)
15 U1 - wnLSF week Week number of the new leap second
16 U1 - dN day Day number of the new leap second
17 I1 - dtLSF s Delta time due to leap seconds after the new
leap second effective
18 U1[2] - reserved3 - Reserved
5.12.2.5 UBX-MGA-BDS-IONO
Message
UBX-MGA-BDS-IONO
Description
BDS Ionospheric Assistance
Firmware
Supported on:
• u-blox 9 with protocol version 27
Type
Input
Comment
This message allows the delivery of BeiDou ionospheric assistance to a receiver. See the
description of AssistNow Online for details.
Header Class ID Length (Bytes) Payload Checksum
Message Structure
0xB5 0x62 0x13 0x03 16
see below
CK_A CK_B
Payload Contents:
Byte Offset Number
Format
Scaling Name Unit Description
0 U1 - type - Message type (0x06 for this type)
1 U1 - version - Message version (0x00 for this version)
2 U1[2] - reserved1 - Reserved
4 I1 2^-30 alpha0 s Ionospheric parameter alpha0
5 I1 2^-27 alpha1 s/pi Ionospheric parameter alpha1
6 I1 2^-24 alpha2 s/pi^2 Ionospheric parameter alpha2
7 I1 2^-24 alpha3 s/pi^3 Ionospheric parameter alpha3
8 I1 2^11 beta0 s Ionospheric parameter beta0
9 I1 2^14 beta1 s/pi Ionospheric parameter beta1
10 I1 2^16 beta2 s/pi^2 Ionospheric parameter beta2
11 I1 2^16 beta3 s/pi^3 Ionospheric parameter beta3
12 U1[4] - reserved2 - Reserved
UBX-18010854 - R04 Advance Information Page 105 of 259
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