Yaesu FT-991 Frequency Expansion MARS / CAP modification
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Yaesu FT991A - MARS MOD
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#261 Yaesu FT-991A Sloppy Repair fixed
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FT991 Antenna Tuner Operation – Review Antenna Feedline Impedance
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FT-991 The Final Analysis
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G90 and Yaesu FT-991a
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