GDL 82 Mooney M20( ) Series STC Installation Manual 190-01810-10Rev. 1Page 7 of 493 OVERVIEWSteps required to install the GDL 82 are discussed in this section. These steps include verification of theexisting transponder system performance (including the antenna) and completion of an aircraft ElectricalLoad Analysis. Equipment location, required support structure, and electrical wiring are also discussed inthis section.NOTEThe instructions to install GDL 82, including fabrication of required wiring harness, are intendedto follow aircraft manufacturer requirements as specified in Aircraft Maintenance Manual.Alteration and wiring practices detailed in AC 43.13-1B and AC 43.13-2B are acceptablealternatives. Sound mechanical and electrical methods and practices are required to achieveoptimum system performance.Options for the GDL 82 installation in a Mooney M20( ) series aircraft are depicted in Figure 3-1, Figure3-2, and Figure 3-3. These options reflect location of existing L-Band antenna and type of transponder(panel mounted or remote). Other than the GDL 82 unit, all other equipment shown is for reference onlyand is neither intended to convey requirements for the GDL 82 installation, nor is the GDL 82 installationpredicated on other equipment shown. A list of acceptable L-Band and GPS antennas are shown in Table3-5 and Table 3-6, respectively.Figure 3-1: GDL 82 Installation Option 1
