Garmin GTX330 Installation Manual

Also see for GTX 330: Pilot's guide addendum Manual Pilot's guide addendum Pilot's guide Pilot's guide addendum

Garmin GTX330 Installation Manual Manual pdf 22 page image

Page 2-4 GTX 330/GTX 330D Installation ManualRevision R 190-00207-02Figure 2-1. Antenna Installation ConsiderationsA. The antenna(s) (Garmin P/N 010-10160-00) should be mounted away from majorprotrusions, such as engine(s), propeller(s), and antenna masts. It should also be as far aspractical from landing gear doors, access doors, or other openings that could effect itsradiation pattern.B. The main antenna should be mounted vertically on the bottom of the aircraft. The optionalsecond (diversity) antenna should be mounted vertically on top of the aircraft. Horizontalseparation must be no more than 7.6 meters (25 feet).C. Avoid mounting the antenna within three feet of the ADF sense antenna or any othercommunication antenna and six feet from the DME antenna.D. To prevent RF interference, the antenna must be physically mounted a minimum distance ofthree feet from the GTX 330.NOTEIf the antenna is being installed on a composite aircraft, ground planes must beconsidered. Conductive wire mesh, radials, or thin aluminum sheets embedded inthe composite material provide the proper ground plane allowing the antenna pattern(gain) to be maximized for optimum transponder performance.2.4.2 Antenna InstallationInstall the antenna according to the antenna manufacturer’s instructions and FAA Advisory CircularsAC 43.13-1B and AC 43.13-2B.