SOUTHERN AVIONICS COMPANYModel SA100 Dual 4-1Installation and Operation4 Installation and OperationFor security and/or safety, it may be desirable to enclose the transmitter in a building, and/or toenclose the transmitter and antenna site with a fence. A grounded metal building and agrounded metal fence are preferred. If wood or some other absorbent material such as concreteblocks or brick is used, it must be sealed so that it cannot absorb moisture. An absorbentstructure close to the antenna will cause the antenna resistance to increase when the structureabsorbs moisture. This will cause the antenna current to decrease and, in an extreme case, canactivate the automatic shutdown system.4.1 Transmitter Installation1 Check that the jumpers on the AC Power Supply are correct. See figures "AC Power SupplySchematic" and AC Power Supply Diagram."2. Complete the Load Center/Battery Charger installation. See section "Load Center/BattCharger Installation (Optional)."3. Check that the Filter PWB(s) jumpers are in the correct positions for the RF frequency, seefigures "Filter PWB Schematic, "Filter PWB Diagram," "Filter PWB Jumper Detail." Ensurethat the Filter PWB(s) are correctly installed on the RF Motherboard(s).4. If the optional Audio PWB is installed, connect the balanced audio line input. See figure"Transmitter Diagram SA Series." See figure "SA Relay 24VDC PWB Diagram" for dualunits.Danger Potentially lethal levels of voltage are present within thetransmitter. Extremely high levels of RF voltage are present within thecoupler when RF input is applied. High levels of voltage can be deadly.
