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INSTRUCTION
Your Yaesu equipment is backed by a warranty that guaranteesyour set
to be free of defects. Take a few minutes to read the warranty card
carefully. Make certain that you fill out the card completely, and mail it
at once, in order to qualify for warranty service.
Warranty service is to be performed by the dealer from whom the equip-
ment was putchased. Do not return the equipment to Yaesu for servicing
without first getting a serviceauthorization from the YaesuServiceCenter.
Estimates of the approximate cost to repair are available upon request.
YAESU MUSEN CO., LTD
MANUAL
FC-901
IMPORTANT
NOTE
TOKYO JAPAN.
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Summary of Contents for Yaesu FC-901
- Page 1 Warranty service is to be performed by the dealer from whom the equip- ment was putchased. Do not return the equipment to Yaesu for servicing without first getting a serviceauthorization from the YaesuServiceCenter.
- Page 2 FC-901 ANTENNA COUPLER ANTENNA TUNER VAESu FC•ø01 The FC -901 antenna coupler is designed for low and medium power applications in the HF amateur bands fror-n 160 through 10 meters. It is designed to minimize the adverse effects of high...
- Page 3 FC-901 SPECIFICATIONS 160mL 1.8-2.0 FREQUENCY COVERAGE 160mH 1.9-2.4 -4.0 7.0- 14. 0-14.5 21.0-21.5 28.0-29.7 50-75 ohms Input irnpedance 50 Ohrn 10—2.50 Ohrns Max. variation load 75 ohm 18-300 oh.n-rs impedance 500 W PEP @ 50 ohms Maxir-num transrnitter power 25 w,...
- Page 4 FRONT PANEL CONTROLS •SELECT • POWER'SWR ANTENNA TUNER YAESU FC-90' TUNE The TUNE control is a dual capacitor to provide capacitive adjustrnent of the coupling between the transmitter and the in-ypedance established by the BAND switch and the LOAD control.
- Page 5 SELECT This switch selects the antenna to be matched. The operator has the choice of one of three coax-fed antennas or a single wire antenna. POWER &SWR switch This switch is used to select the proper sensitivity of the FWD POWER meter the power...
- Page 6 UT-IF —type connectors will accept the coaxial feedline from the antenna. As well, a dummy load such as the YAESU YP-150 may be attached to one Of these connectors tuning or test purposes. WIRE This threaded terminal accepts a single -wire...
- Page 7 BE READ IN ITS ENTIRETY BEFORE MATCHING ANTENNAS IS ATTEMPTED. WI-ULE A STRAIGHTFORWARD PROCEDURE, ANTENNA MATCHING WITH COUPLER SUCH AS THE FC-901 INVOLVES A LOGICAL PROGRESSION OF STEPS, FAWLLARITY WITH TOTALITY FOLLOWING SECTION WILL CLARIFY PROCEDURE IMMENSELY To summarize the procedure that is followed in using the FC —901...
- Page 8 The reader referred to Fig. 1, which contains the approximately correct positions of the BAND, LOAD, and TUNE controls 50 ohm load irnpedance, such as that presented by a dummy load. A dummy load is extrenlely useful tuning up a transmitter preparation adjustment of matching...
- Page 9 5) Once the initial procedure has been followed to yield a near— perfect xnatch, the POWER & SW R switch may be placed in the position which most closely corresponds to the transmitter output power expected. The transmitter may then be adjusted for full power (sorne adjustxnent of the transmitter...
- Page 10 PARTS LIST TRIMMER CAPACITOR Oeseriprion Pares NO. Symbol Nor TCIOI CHASSIS CAPACITOR MICRO INDUCTOR CeramieDise SOWV 0.01gF 30820103 [-102—104 s 3020001 VARIABLE CAPAC' CM COUPLER YA300pF 39000067 #220301A LIOI ssoogt•n YA430pF 39000068 VC2 (Load) CONNECTOR I NOIJCTOR 67000004 U.BR.66D 55003170 *220299 Through A-339...
- Page 11 YAESU 911—1...
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