八重洲Yaesu_FC-50_user操作说明书手册

Automatic Antenna Tuner FC-50Installation instructionsThank you for your purchase of the model FC-50 Automatic Antenna Tuner.The FC-50 is designed specifically forthe FT-891 HFNHF Transceiver.A cooling fan is incorporated in the tuner to ensure thermal stability of the criticalmatching elements mounted within the compact case.The FC-50 Automatic Antenna Tuner responds to control commands from the FT-891 Transceiver,providingmicroprocessor-based impedance matching on the 160 through 6 meter Amateur bands.On the HF bands theimpedance matching range is from 16 Q to 150 Q (up to 3:1 SWR)and on the 50 MHz band the impedancematching range is from 25 n to 100 (up to 2:1 SWR).Accordingly,the FC-50 should not be expected to match "longwire"type antennas unless specific design steps are taken to ensure that the impedance presented to the FC-50 iswithin these specifications.Please refer to the FT-891 Operating Manual for operating instructions.The FC-50 tuner can be activated during receive(refer to"Activate the tuner during receive"on page three of theseinstructions).Front Rear Panel InformationThe ventilator air intake ductsConnect the Control CableThis "M"typeThe ventilatorare for cooling.Do not place anyfrom the FT-891 to this("S0-239")c0axiaobjects that restrict air flow nearminiature DIN connector.个rintk ductsjack accommo-are for cooling.the ducts.dates the antennaDo not place anyinput for the FC-50objects that restrictair flow near theducts.Use this "M"type("S0-239)jackfor connection ofthe coaxial cablefrom the FT-891Front SideRear SideInstallation to the FT-8911.Referring to the figure below,remove the four feet and reattach the feet on the bottom of the transceiver withthe supplied screws A(M3x8B)(use a screwdriver).Do not attach any parts other than the supplied mounting parts2.Remove the four rubber caps on the top case of the FC-50.3.Slide FT-891 with the supplied feet toward the rear of the FC-50,into the slots from which the rubber caps wereremoved in step (2)above.Attach the supplledReplace the feet on theSiide FT-891feet.bottom of the transceiverforward into thewith the supplied feet.slots of FC-50When installing the FC-50 and the FT-891 separately,purchase an additional Mobile MountingBracket(MMB-82),and mount both units securely.1