Page 1-10 400W Series Installation ManualRev. G 190-00356-021.4.8.2 Antennas With IFR GPS Operational LimitationsThe list of TSO-C144 antennas shown in Table 1-3 allow the 400W Series models to meet TSO-C146arequirements with the operational limitations specified in the Limitations Section 7.1.1 of this manual.Table 1-3. Antennas With IFR GPS Operational LimitationsModel / Description Mount Style ConnType Mfr Part Number Garmin OrderNumberAdditionalRequirementsGA 56A,GPS/WAASAntenna [3]Screw Mount,ARINC 743FootprintBNC Garmin 011-01154-00 010-10599-00GA 56W,GPS/WAASAntenna [3]Stud Mount ,TeardropFootprint [1]BNC Garmin 011-01111-00 010-10561-01GA 57, GPS/WAASand FIS Antenna [3]Screw Mount,ARINC 743FootprintBNCTNC[4]Garmin 011-01032-00 010-10604-00Garmin AT 590-1104 N/AA33, GPS/WAASAntenna Screw Mount TNC AeroAntennaAT575-9UW -TNCF-000-05-26-NM N/AGarmin AT 590-1112 013-00113-00A34, GPS/WAASAntennaScrew Mount,TeardropFootprint [2]TNC AeroAntennaAT575-93W-TNCF-000-05-26-NM 013-00113-00Operationallimitations inSection 7.1.1of this manualapply.[1] Same footprint and mounting hole pattern as GA 56.[2] Same mounting hole pattern as GA 56, but A34 antenna has a physically larger footprint.[3] Antenna is not compatible with SATCOM. An alternate antenna should be used for installationsequipped with SATCOM.[4] The GPS/WAAS antenna connector is a BNC type. The XM antenna connector is a TNC type.