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Safe-Fly 2020 ADS-B Compliant GPS Module with Serial Data
Combiner/Expander
Revision P
8/21/2019
GRTAvionics.com
__________________________________________________________________________________
Safe-Fly 2020 GPS – Rev P
GRT Avionics, Inc
1

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Summary of Contents for GRT Avionics Safe-Fly 2020

  • Page 1 Safe-Fly 2020 ADS-B Compliant GPS Module with Serial Data Combiner/Expander Revision P 8/21/2019 GRTAvionics.com __________________________________________________________________________________ Safe-Fly 2020 GPS – Rev P GRT Avionics, Inc...
  • Page 2: Table Of Contents

    Baro Alt fails at a high percentage in Transponder Monitor mode:..........24 Transponder replies only when transponder is interrogated With EchoUAT........24 Mode 3A fails at a high percentage in Transponder Monitor mode..........25 __________________________________________________________________________________ Safe-Fly 2020 GPS – Rev P GRT Avionics, Inc...
  • Page 3 Mode 3A only fails when squawk code is not 1200:...............25 Only NIC fails, or the GPS loses position sometimes:..............25 EchoUAT Transponder Threshold Adjustment..................26 Echo UAT Transponder Threshold adjustment procedure:..............26 Specifications............................30 Connector Pinout............................31 Dimensions...............................32 Typical Wiring............................33 __________________________________________________________________________________ Safe-Fly 2020 GPS – Rev P GRT Avionics, Inc...
  • Page 4: Revision History

    ADS-B operation via the FAA Performance Report, along with tips for resolving problems with this report. Updated the default setting in the Safe-Fly GPS. Updated minimum software version for use with EchoUAT. __________________________________________________________________________________ Safe-Fly 2020 GPS – Rev P GRT Avionics, Inc...
  • Page 5: Description

    GPS data to these EFIS models. Use with Non-Compatible GRT and other systems The Safe-Fly GPS module can be used with non-compatible systems, and without any connection to an EFIS, with the following limitations: __________________________________________________________________________________ Safe-Fly 2020 GPS – Rev P GRT Avionics, Inc...
  • Page 6: Gps Function

    “Approach” accuracy allows the GPS to be used for IFR approaches, however this indication is provided to enhance the understanding of the performance of their GPS installation. If GPS-INTEG is __________________________________________________________________________________ Safe-Fly 2020 GPS – Rev P GRT Avionics, Inc...
  • Page 7: Serial Data Combiner/Expander Function

     GRT Autopilot Servos  Data to 3 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...
  • Page 8: Installation

    0.2A maximum. These inputs are isolated, and multiple power inputs can be used for redundancy. Ground - One ground connection is recommended, to any of the provided ground pins. __________________________________________________________________________________ Safe-Fly 2020 GPS – Rev P GRT Avionics, Inc...
  • Page 9: Serial Ports

    Default Pins Serial Port 1 Out 4800 baud, NMEA0183 19,20 Serial Port 2 Out 9600 baud, NMEA0183 + RAIM Serial Port 3 Out 115200 baud, NMEA0183 + RAIM + RAIM __________________________________________________________________________________ Safe-Fly 2020 GPS – Rev P GRT Avionics, Inc...
  • Page 10: Efis Configuration Settings

    GPS1 or GPS2, so it may be necessary to change an internal GPS input to “Not Assigned”, or a serial input configured for GPS1 or GPS2 must be set to “Not Used”. __________________________________________________________________________________ Safe-Fly 2020 GPS – Rev P GRT Avionics, Inc...
  • Page 11: Safe-Fly Gps Post-Installation Checkout Procedure

    Power Input 1 Voltage present on this power input Power Input 2 Voltage present on this power input Power Input 3 Voltage present on this power input Temperature Internal temperature of processor __________________________________________________________________________________ Safe-Fly 2020 GPS – Rev P GRT Avionics, Inc...
  • Page 12: Gps Specific Status

    Note: All steps in the “Safe-Fly/SPC Configuration” section above must be completed before the following settings are made. Use of the Safe-Fly GPS for the Trig TT21/TT22 is approved by GRT Avionics when installed and configured as described in this section for experimental category airplanes. This installation meets the requirements of FAR 91-227(c), when wired as shown below, and configured as indicated.
  • Page 13: Post-Installation Checkout - Verifying Trig Tt-22 Is Receiving Gps Data

    Note: All steps in the “Safe-Fly/SPC Configuration” section above must be completed before the following settings are made. Use of the Safe-Fly GPS for the TT31 is approved by GRT Avionics when installed and configured as described in this section for experimental category airplanes. This installation meets the requirements of FAR 91.227(c), when wired as shown below, and configured as indicated.
  • Page 14 GRT EFIS, any serial output from the GRT EFIS can be configured as the altitude encoder output. We recommend using the “Fuel/Air Data (Z Format)”. The baud rate set in the EFIS __________________________________________________________________________________ Safe-Fly 2020 GPS – Rev P GRT Avionics, Inc...
  • Page 15: Sandia

    Testing is underway to validate the use of the Safe-Fly GPS with the Sandia ADS-B out devices. This manual will be updated when GRT Avionics and Sandia and approved the use of this GPS. We expect this approval soon (second quarter 2017 or sooner).
  • Page 16 COM2 Rate 115,200 115,200 COM2 Input Protocol Not Applicable NMEA * Other settings are also required corresponding to airplane specific entries, such as aircraft type, length, width, antenna offset, etc. __________________________________________________________________________________ Safe-Fly 2020 GPS – Rev P GRT Avionics, Inc...
  • Page 17: Efis Configuration

    Serial Port “Y” could be Serial port 2 (depending on what serial ports are not already in use and are high-speed in your EFIS will determine the serial ports you can use.) __________________________________________________________________________________ Safe-Fly 2020 GPS – Rev P GRT Avionics, Inc...
  • Page 18 Does not apply to EchoUAT GPS Certification Level* A or B TEST Squitters Not used TIS Output Not used UAT/978 Receiver in Aircraft Set to “Yes” 1090-ES Receiver in Aircraft Set to “Yes” __________________________________________________________________________________ Safe-Fly 2020 GPS – Rev P GRT Avionics, Inc...
  • Page 19 Minimum EFIS display unit software is as follows: EFIS Minimum Software Version All models of Mini EFIS 4.00 Sport EX/Horizon EX 2.00 Sport SX 14.00 10.00 6.00 Sport or Horizon WS* Sport or Horizon HS* __________________________________________________________________________________ Safe-Fly 2020 GPS – Rev P GRT Avionics, Inc...
  • Page 20: Wiring - Grt Safefly To Echouat For Current Grt Efis Models

    The following figure illustrates the wiring to the Safe-Fly GPS and EchoUAT, when used with a GRT EFIS configured to control the Safe-Fly GPS via the serial control In/Out on the Safe-Fly GPS. This wiring cannot be used with Sport or Horizon HS and WS models. __________________________________________________________________________________ Safe-Fly 2020 GPS – Rev P GRT Avionics, Inc...
  • Page 21: Wiring - Grt Safefly To Echouat With No Efis Control (Including Sport And Horizon Ws And Hs Models)

    The following figure illustrates the wiring to the Safe-Fly GPS and EchoUAT, when no EFIS exists, or the EFIS is unable to control the GPS, such as the Sport and Horizon HS and WS models. __________________________________________________________________________________ Safe-Fly 2020 GPS – Rev P GRT Avionics, Inc...
  • Page 22: Safe-Fly With Echouat Post-Installation Checkout Procedure

    5. An FAA Performance report should be requested. See “Verifying operation via the FAA Performance Report Request” section below. __________________________________________________________________________________ Safe-Fly 2020 GPS – Rev P GRT Avionics, Inc...
  • Page 23: Verifying Operation Via The Faa Performance Report Request

     For Trig TT22 - It will report an ADS-B position warning if it is not receiving a valid GPS position. Check all GPS settings.  Check Trig control head settings. __________________________________________________________________________________ Safe-Fly 2020 GPS – Rev P GRT Avionics, Inc...
  • Page 24: Sil Or Both Sil And Sda Fails In Report With Safe-Fly And Echouat

    Transponder replies only when transponder is interrogated With EchoUAT  If Mode 3A also fails and everything else is good, follow the procedure to adjust the EchoUAT Transponder Threshold in the advanced settings in the echo app. __________________________________________________________________________________ Safe-Fly 2020 GPS – Rev P GRT Avionics, Inc...
  • Page 25: Mode 3A Fails At A High Percentage In Transponder Monitor Mode

    There should be at least an inch between the GPS antenna and any other similar antenna.  Try more separation.  Large IFR GPS antennas need 9 inches center-to-center and recommend 12 inches center-to-center. __________________________________________________________________________________ Safe-Fly 2020 GPS – Rev P GRT Avionics, Inc...
  • Page 26: Echouat Transponder Threshold Adjustment

    To modify the threshold value perform the following steps: 1. Turn the avionics master on. 2. Place the Transponder in "ALT" mode. 3. Connect a mobile device to the echoUAT Wi-Fi. 4. Open the echo mobile application. __________________________________________________________________________________ Safe-Fly 2020 GPS – Rev P GRT Avionics, Inc...
  • Page 27 5. Verify the app shows "Connected to Device" 6. Tap two fingers simultaneously on the echo logo. __________________________________________________________________________________ Safe-Fly 2020 GPS – Rev P GRT Avionics, Inc...
  • Page 28 Note Mode S does not reply with pressure altitude in a ground state. 10.  When the appropriate threshold has been reached the Squawk and Pressure altitude will display.  Repeat 8 & 9 until ALL fields are populated __________________________________________________________________________________ Safe-Fly 2020 GPS – Rev P GRT Avionics, Inc...
  • Page 29 11.  Values lower than 1100 should not be used and most installs seem to land between 1400-1600.  If you are still having difficulty and cannot get a reliable/stable readout please contact support@uavionix.com   __________________________________________________________________________________ Safe-Fly 2020 GPS – Rev P GRT Avionics, Inc...
  • Page 30: Specifications

    (SBAS), such as WAAS, EGNOS, MSAS and GAGAN to the extent of WAAS compatibility.  Approvals: Certified by GRT Avionics to FAR 91.227 when used with a ADS-B out device in the “Approved Devices” section. GPS sensor meets TSO-C199, Appendix 1, Section A1.2.6 and FAR Section 91.227(c) for ADS-B out.
  • Page 31: Connector Pinout

    Connector Pinout __________________________________________________________________________________ Safe-Fly 2020 GPS – Rev P GRT Avionics, Inc...
  • Page 32: Dimensions

    Dimensions __________________________________________________________________________________ Safe-Fly 2020 GPS – Rev P GRT Avionics, Inc...
  • Page 33: Typical Wiring

    Typical Wiring __________________________________________________________________________________ Safe-Fly 2020 GPS – Rev P GRT Avionics, Inc...

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