ZED-F9P-Integration Manual
UBX-18010802 - R01
1 Overview Page 7 of 64
Objective Specification - Confidential
• GLO L1OF L2OF
• GAL E1B/C E5b
• BDS B1I
• QZSS L1C/A L2C
BDS B2I is also supported but not enabled in the default GNSS configuration
The configuration settings can be modified using UBX protocol configuration messages, see the
ZED-F9P Interface Description [2].
1.4 RTCM3 corrections
The  ZED-F9P  high  precision  receiver  needs  to  receive  RTCM3  corrections  to  function  as  an
RTK  rover,  and  the  RTCM3  messages  it  receives  must  be  for  all  the  GNSS  constellations  and
signals being received. The ZED-F9P high precision receiver needs to output RTCM3 corrections
if being used as an RTK base. The correct RTCM3 messages must also be selected for the GNSS
constellations and signals being received. The supported input and output messages are listed in
the following sections.
For  rover  configuration  with  default  GNSS  configuration  the  recommended  list  of RTCM3  input
messages are:
• RTCM 1005
• RTCM 1077
• RTCM 1087
• RTCM 1097
• RTCM 1127
• RTCM 1230
For base configuration with default GNSS configuration the recommended list of RTCM3 output
messages are:
• RTCM 1005
• RTCM 1077
• RTCM 1087
• RTCM 1097
• RTCM 1127
• RTCM 1230
The RTCM3 specification is currently at V3.3 and it must be noted that RTCM2x messages are not
supported by the RTCM3 standard.
You can download the standard from the RTCM website http://www.rtcm.org/differential-global-
navigation-satellite--dgnss--standards.html
To  modify  the  RTCM  input/output  settings  see  Section  Configuration  and  the  u-blox  ZED-F9P
Interface Description [2].
1.5 Supported list of RTCM3 input messages
Message Description
RTCM 1001 L1-only GPS RTK observables
RTCM 1002 Extended L1-only GPS RTK observables
RTCM 1003 L1/L2 GPS RTK observables
RTCM 1004 Extended L1/L2 GPS RTK observables
RTCM 1005 Stationary RTK reference station ARP