u-blox ZED-F9P User Manual

u-blox ZED-F9P Interface Description - Manual
Advance Information
5.12.5.3 UBX-MGA-GLO-TIMEOFFSET
Message
UBX-MGA-GLO-TIMEOFFSET
Description
GLONASS Auxiliary Time Offset Assistance
Firmware
Supported on:
• u-blox 9 with protocol version 27
Type
Input
Comment
This message allows the delivery of auxiliary GLONASS assistance (including the GLONASS
time offsets to other GNSS systems) to a receiver. See the description of AssistNow Online
for details.
Header Class ID Length (Bytes) Payload Checksum
Message Structure
0xB5 0x62 0x13 0x06 20
see below
CK_A CK_B
Payload Contents:
Byte Offset Number
Format
Scaling Name Unit Description
0 U1 - type - Message type (0x03 for this type)
1 U1 - version - Message version (0x00 for this version)
2 U2 - N days Reference calendar day number within the four-
year period of almanac (from string 5)
4 I4 2^-27 tauC s Time scale correction to UTC(SU) time
8 I4 2^-31 tauGps s Correction to GPS time relative to GLONASS
time
12 I2 2^-10 B1 s Coefficient to determine delta UT1
14 I2 2^-16 B2 s/msd Rate of change of delta UT1
16 U1[4] - reserved1 - Reserved
5.12.6 UBX-MGA-GPS (0x13 0x00)
5.12.6.1 UBX-MGA-GPS-EPH
Message
UBX-MGA-GPS-EPH
Description
GPS Ephemeris Assistance
Firmware
Supported on:
• u-blox 9 with protocol version 27
Type
Input
Comment
This message allows the delivery of GPS ephemeris assistance to a receiver. See the
description of AssistNow Online for details.
Header Class ID Length (Bytes) Payload Checksum
Message Structure
0xB5 0x62 0x13 0x00 68
see below
CK_A CK_B
Payload Contents:
Byte Offset Number
Format
Scaling Name Unit Description
0 U1 - type - Message type (0x01 for this type)
1 U1 - version - Message version (0x00 for this version)
2 U1 - svId - GPS Satellite identifier (see Satellite Numbering)
3 U1 - reserved1 - Reserved
4 U1 - fitInterval - Fit interval flag
5 U1 - uraIndex - URA index
UBX-18010854 - R04 Advance Information Page 113 of 259

u-blox ZED-F9P Specifications

General

GNSS	GPS, GLONASS, Galileo, BeiDou, QZSS, SBAS
Concurrent GNSS	4
RTK	Yes
Velocity Accuracy	0.05 m/s
Time Pulse Accuracy	30 ns
Operating Temperature	-40°C to +85°C
Supply Voltage	2.7 V to 3.6 V
Channels	184
Frequency Bands	L1, L2
Dimensions	22 mm x 17 mm x 2.4 mm
Interfaces	UART, SPI, I2C