Yaesu FT-450D Operation Manual

Also see for FT-450D: Operating manual Brochure & specs Operation manual Technical supplement Manual

Contents

Page 90 FT-450D OPERATION MANUALI NSTALLATION OF O PTIONAL ACCESSORIESAUTOMATIC-M ATCHING 200-MEMORY ANTENNA T UNER FC-40 O PERATIONThe FC-40 makes use of the control circuitry built into the transceiver, which allows the operator to control andmonitor automatic operation of the FC-40, which mounts near the antenna feedpoint. The FC-40 uses speciallyselected, thermally-stable components, and is housed in a waterproof case to withstand severe environmentalconditions with high reliability.A carefully-chosen combination of solid-state switching components and high-speed relays allows the FC-40 tomatch a wide variety of antennas to within a 2:1 SWR on any amateur band frequency (160 through 6 meters),typically in less than eight seconds. Transmitter power required for matching may be as little as 4 - 60 Watts, andmatching settings are automatically stored in memory for instant recall when the same frequency range isselected later.Please see the manual of FC-40 for detailed information.Interconnections to FT-450DAfter mounting the FC-40, connect the cables from the tuner to the ANT and TUNER jacks on the rear panel ofthe FT-450D Transceiver.InstallationThe optional FC-40 Automatic Antenna Tuner provides automatic tuning of a coaxial line so as to present anominal 50-ohm impedance to the FT-450D’s, HF/50 MHz antenna port.Before operation can begin, you must instruct the FT-450D’s microprocessor that the FC-40 is being used. Thisis done using the Menu Mode:1. Press and hold the [F] button for one second toenter the Menu Mode.The “ ” icon will appear in the display.2. Rotate the [DSP/SEL] knob to select the MenuItem “TUNER.”3. Press the [DSP/SEL] knob to enable this selectedMenu Item.4. Rotate the [DSP/SEL] knob to change the settingto “EXT ATU.”5. Press and hold the [F] button for one second toreturn to normal operation.[DSP/SEL] Knob [F] buttonINPUTDC 13.8V22AANTGNDEXTSPKRCATLINEARTUNERDATAInstal supplied ferritecore as close to con-nector as possible. Control Cable (5 m)Coaxial Cable (5 m)Antenna TerminalGNDWrap the ends of the wa-terproof cap with suppliedsealing tape to protectagainst moisture ingress.FT-450DFC-40