400W Series Installation Manual Page 1-9190-00356-02 Rev. E1.4.8 GPS Antenna RequirementsAntenna performance is critical to the GPS/WAAS operation. The antennas listed in Table 1-2 andTable 1-3 are approved for installation with the 400W Series units with specified limitations. Refer to thefollowing sections and tables for selection of the GPS/WAAS antenna.1.4.8.1 Antennas Without IFR GPS Operational LimitationsThe list of TSO-C144 antennas shown in Table 1-2 allow the 400W Series models to meet TSO-C146arequirements without the operational limitations specified in the Limitations Section 7.1.1 of thismanual.Table 1-2. Antennas Without IFR GPS Operational LimitationsModel / Description Mount Style ConnType Mfr Part Number Garmin OrderNumberAdditionalRequirementsGarmin 013-00235-00 013-00235-00GA 35, GPS/WAASScrew mount,Teardropfootprint[1]TNC AeroAntennaAT575-93GW -TNCF-000-RG-27-NM 013-00235-00Garmin 013-00244-00 013-00244-00GA 36, GPS/WAAS Screw mount,ARINC 743 TNC AeroAntennaAT575-126GW-TNCF-000-RG-27-NM013-00244-00Garmin 013-00245-00 013-00245-00GA 37, GPS/WAAS+XMScrew mount,ARINC 743TNCTNC AeroAntennaAT2300-126GW-TNCF-000-RG-27-NM013-00245-00Comant ,GPS/WAAS+VHF[3]Screw mount,TeardropCOMTNCBNC[2]Comant CI-2580-200 N/AComantGPS/WAAS +VHF[3]Screw mount,TeardropTNCBNC[2]Comant CI-2728-200 N/AComantGPS/WAAS+XM+VHF [3]Screw mount,TeardropCOMTNCTNCBNC[4]Comant CI-2728-410 N/AMust haveGPS softwareV3.0 or later.[1] Same mounting hole pattern as GA 56, but GA 35 antenna has a physically larger footprint.[2] The GPS/WAAS connector is a TNC type. The VHF connector is a BNC type.[3] Installation of this antenna is not covered by the Garmin GA Antenna AML STC SA01695SE.[4] The GPS/WAAS connector is a TNC type. The XM connector is a TNC type. The VHF connector isa BNC type.
