by Bob - N1UJS
These mods worked beautifully on my FT-101E. They came to me from Eric, WB2CAU, who got them from Mark, WA1FAF who got them from the Master himself WA1HLR. Seventy-three and I hope these are a help to many.
First and foremost, the narrow SSB IF filter makes signals through the receiver sound very muffled. Fortunately, there is an aftermarket 6 kHz wide AM filter available for the FT-101/B/E/F series from:
International Radio and Computer, Inc.
3804 South U.S. 1 Fort Pierce, FL 34982
Phone: (407) 489-0956, FAX: (407) 464-6386
The filter is the Fox-Tango #2011. Price as of January 1993 is $75.00 plus shipping. The filter is installed in place of the CW filter, with some minor circuit changes so that the 6kHz filter is in circuit when the mode switch is placed in the AM position. The SSB filter remains in the FT-101 and is used in the SSB and CW modes.
** If you buy a used filter without the instructions, refer to Yaesu FT-101 series Maintenance Service Manual (Yaesu part # 50900) available from Yaesu for installation instructions.
For further information on the FT-101 refer the The Yaesu FT-101 HF Transceiver Home Page by NW2M.
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15 February 1999