Magnavox US2-M61112 User's Manual
Contents
1. Operating Instructions Mast Mounted Outdoor Antenna Amplifier Installation Instructions 1 Place pre amplifier unit on the antenna mast approxi mately 3 feet below the antenna Soo ohn Terminas T T 2 Use mast clamp and wing nuts provided to secure the eal ies oits u O ouo pre amplifier unit to the mast cover removed amp Antenna 3 Connect the antenna terminals to the input terminals of Erig 200 ohm wre sge ie es hi the pre amplifier unit This connection may be made using en a aes ing Nuts either 300 ohm twin lead or 75 ohm coaxial cable See Hold Down Screws aie ae ae wires to terminals with below for specific instructions wires BETWEEN washers Tighten wing nuts 300 ohm Twin Lead Split 300 ohm lead about 6 inches and then strip off 1 inch of insulation on each end of the lead Attach one end of 4 6 the lead wire to the antenna and the other end to the pre __ amplifier inputs The pre amplifier input terminals are reached by removing the weatherproof cover This can be Ei done by loosening not removing the cover lock screws and lifting off the weatherproof cover Attach the leads to 300 ohm Wire the 300 ohm terminals be sure to place the wire under the a a A R Split antenna lead in wire about six inches hold down see illustration Strip insulation back about one inch Connect 75 ohm coaxial Connect to 300 ohm terminals cable to outdoor antenna Outdoor2. Matching Transformer not supplied 75 ohm Pre Amplifier Unit Coaxiat Cable 75 ohm Coaxial Cable Use an outdoor matching transformer not included to attach the coaxial cable to the antenna terminals There 300 ohm Terminals are two ways to attach the coaxial cable to the pre Center Conductor amplifier unit Pre Amplifier Unit 75 ohm Terminal 1 Use another matching transformer to attach the coax op view with Se Ive cable to the terminals marked 300 ohm 2 Strip back the outer jacket 2 5 inches Then twist the braid to form a lead Cut off 1 inch of the inner foam in sulation exposing the center conductor Place the coaxial cable under the hold down and connect the center con ductor under the left hand terminal and the braid under the right hand terminal Hold Down 75 ohm Coax Connection Pre Amplifier to Amplifier There is a slide switch on base of pre amplifier unit from 75 ohm to 300 ohm which is used to select cable type installed on the output terminal 300 ohm Terminals Pre Amplified Unit bottom view 75 ohm Terminal 75 ohm 3000hm Select Switch When coaxial cable is used it is terminated with an F connector and connected to the 75 ohm terminal on the pre amplifier and the 75 ohm terminal on the amplifier unit labeled to amplifier When 300 ohm twin lead is used it is connected to the two 300 ohm terminals on the pre amplifier unit labeled to amplifer The swi
3. tch is then thrown to the side labeled 300 F Must be mounted at about 1 meter apart Pre Amplifier Unit 75 ohm F Connector 75 ohm Coaxial Cable Performance Specifications 300 ohm Terminats 75 ohm Terminats To Amplifier 300 75 a coals 75 ohm Coax Amplifier Unit Connection Amplifier to TV Using the same type of lead wire 75 ohm or 300 ohm usec to connect the pre amplifier to the amplifier connect the amplifier unit to the TV Be sure to use the appropriate banc separator to split VHF signals and UHF signals Typical Installation Connection of 75 ohm or 300 ohm Wire to outdoor antenna Band Separator as required not supplied Pre Amplifier Amplifier Bandwidth 40 860 MHz Input Voltage AC120V Gain V 28 dB U 22 dB Output Voltage AC24V Max Output Level 105 dB Micro V Input Impedance 75 300 ohms Input Impedance 75 300 ohms Output Impedance 75 300 ohms Output impedance 75 300 ohms Noise Figure 4 dB below AT500 MHz Applicable Temp 20 C 50 C
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