Manual

ZED-F9T-Integration manual
Configuration item Description Comments
CFG-HW-ANT_CFG_OPENDET_POL Open antenna detection polarity Set to 1 if the required logic polarity is
active-low (default)
CFG-HW-ANT_CFG_PWRDOWN Power down antenna supply if short
circuit is detected
CFG-HW-ANT_CFG_PWRDOWN_POL Power down antenna logic polarity Set to 1 if the required logic polarity is
active-high (default)
CFG-HW-ANT_CFG_RECOVER Enable auto recovery in the event of a
short circuit
To use this feature, short circuit
detection should be enabled. See CFG-
HW-ANT_CFG_SHORTDET
CFG-HW-ANT_SUP_SWITCH_PIN PIO-Pin (PIO number) used for switching
antenna supply
It is recommended that you use the
default PIO and assigned pin
CFG-HW-ANT_SUP_SHORT_PIN PIO-Pin (PIO number) used for detecting
a short-circuit in the antenna supply
It is recommended that you use the
default PIO and assigned pin
CFG-HW-ANT_SHORT_THR Defines the threshold for the antenna
supervisor when a short status is
detected.
Only applicable for the discrete
antenna supervisor (based on MADC)
CFG-HW-ANT_OPEN_THR Defines the threshold for the antenna
supervisor when an open status is
detected.
Only applicable for the discrete
antenna supervisor (based on MADC)
CFG-HW-ANT_ENGINE With this configuration key, the antenna
supervisor engine can be selected.
Default value is "EXT"
Table 3: Antenna supervisor configuration
It is possible to obtain the status of the antenna supervisor through the UBX-MON-RF message.
Moreover, any changes in the status of the antenna supervisor are reported to the host interface in
the form of notice messages. See the ZED-F9T Interface description [2] for antStatus and antPower
field description.
Status Description
OFF Antenna is off
ON Antenna is on
DONTKNOW Antenna power status is not known
Table 4: Antenna power status
3.1.4.5 NMEA high precision mode
ZED-F9T supports NMEA high precision mode. This mode increases precision of the position
output; latitude and longitude will have seven digits after the decimal point, and altitude will have
three digits after the decimal point. By default it is not enabled since it violates the NMEA standard.
NMEA high precision mode cannot be used while in NMEA compatibility mode or when NMEA output
is limited to 82 characters. See configuration item CFG-NMEA-HIGHPREC in ZED-F9T Interface
description [2] for more details.
3.1.5 Differential timing mode configuration
In differential timing mode the ZED-F9T can operate either as a master reference station or as a
slave station. Using the RTCM3 protocol, the master sends timing corrections to the slave via a
communication link enabling the slave to compute its time relative to the master with high accuracy.
This section describes how to configure the ZED-F9T high accuracy timing receiver as a master
reference station and as slave station. The section begins with a note describing the RTCM protocol
and corresponding supported message types.
UBX-19005590 - R05

3 Receiver functionality Page 12 of 87
C1-Public Early production information