Artex ELT 345 w/ Whip Antenna ELT and installation can be tested using a satellite-based online confirmation test via ARTEX's proprietary satellite testing service at 406Test.com Single antenna output for 406 MHz and 121.5 MHz Provides position accuracy to within 100 meters through a built-in GPS interface (NMEA 0183 or RS 232 Includes a stainless steel mounting bracket with a multiple hole pattern configuration for retrofitting legacy ARTEX ELTs as well as ACK, Kannad or AmeriKing ELTs 2-wire interface does not require aircraft power Worldwide coverage