N∅AGV home page	Alinco information	MFJ information	Yaesu information	LDG Electronics information
Raspberry Pi	Circuits and notes	Maker magazines and info	Assorted fonts	Magazine articles of all types
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FT-990 documentation	FT-990 mods	FT-990 accessories
Scan of original FT-990 operating manual	FT-990 Technical Supplement LPF schematic	MD-100 owner's manual
QST November 1991 product review for FT-990	FT-990 LPF section of schematic with meter readings	SP-6 external speaker and LL-5 phone patch user manual
FT-990 Service manual	NT7U - FT-990 receiver audio hiss reduction modification	FIF-232C owner's manual
FT-990 options set from front panel	Installation of optional IF filters in the FT-990	CAT interface for Yaesu HF transceiver
FT-990 schematic on 44 inch by 31 inch paper	SQ5BPF's FT990 External relay wetting circut mod	Sound card interface schematic
FT-990 scan of original brochure	FT-990 47Mhz IF out mod	MC-60 to FT-450 wiring diagram
G7VOT's manufacturing dates from serial number	FT-990 47Mhz IF out mod schematic	DVS-2 digital voice recorder user manual
FT-990 technical bulletin dated 12/1992 for improved IMD	FT-990 low pass filter mod - board changes	HB3YDH FT-990 & Signalink hints
K1MMI's FT-990 troubleshooting suggestions	FT-990 IMD mod for noise reduction	Assorted CAT command strings
K1MMI's notes on FT-990 ROM versions	FT-990 RF board tap point	FT-990 band data cable
DL6MBI's notes on FT-990 ROM versions	Place tuner in the RX/TX path	FIF-232C owner's manual
	FT990 tuner mod before	SP-6 external speaker and LL-5 phone patch user manual
	FT990 tuner mod after	Yaesu FT-817ND CAT Display In Python
	FT-990 RF unit - location of T1005 and T1010

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