commonly displayed, or GPS-E or GPS-A is not observed, check the integrity of the antenna
connection and location of the antenna.
No accuracy or integrity information is known about this GPS, or horizontal
accuracy limit > 4 nm.
Valid position integrity and horizontal accuracy limit > 1.0 nm, and less than 4.0
nm, typical of IFR enroute requirements. *
Valid position integrity and horizontal accuracy limit > 0.3 nm and less than 1.0
nm, typical of IFR LNAV approach requirements. *
No Integrity – Insufficient data for validating data with RAIM integrity test.
(Flashes Yellow and Green)
* The GPS and EFIS are not FAA certified.
Serial Data Combiner/Expander Function
In addition to the GPS functions, the module includes a serial port combiner function. The module
includes 4 serial ports (input and output). One of these is dedicated for communication with the EFIS
display unit. The other 3 serial ports can be configured to send GPS data directly to an ADS-B output
device, or used to expand the number of serial ports available to your display unit.
Recommended Usage of Serial Combiner/Expander Serial Ports
The design of the serial port combiner minimizes data latency (delays), however, connecting the
following devices is not recommended due to their potential sensitivity to the additional latency.
GRT Autopilot Servos
Data to 3
rd
party autopilots, such as Trutrak and Trio
AHRS, especially when the system includes a connection to an autopilot
__________________________________________________________________________________
Safe-Fly 2020 GPS – Rev P GRT Avionics, Inc
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