ZED-F9P - Integration manual
Figure 61: Rover: u-center UBX-RXM-RTCM view
Once the rover has started to receive valid RTCM messages, it will transition through 3D Fix to 3D/
DGNSS to Float, and, ultimately, into Fixed mode. This will occur when it is receiving all required
RTCM messages, including RTCM 1005 or 4072.0, under sufficient signal conditions. See
Figure 62: Rover: u-center data view with RTK Fixed
If using a virtual reference service, the rover must output the NMEA GGA message to return
to the NTRIP caster. Without this, the NTRIP caster will not provide correction information.
NMEA messages are enabled by default on the UART1, I2C, SPI and USB interface.
D Stacked patch antenna
A typical low-cost L1 + L2 antenna is based on a stacked patch antenna design. This consists of two
discrete ceramic patch elements with an L1 patch above an L2 patch.
UBX-18010802 - R08
Appendix
Page 104 of 110
Early production information
