K9NG109.BIN is a dump of the 27C64A (250ns) EPROM used to implement data scrambling in the K9NG 9600 bps packet modem as described by Steve Goode, K9NG Modifying the Hamtronics FM-5 for 9600 BPS Packet Operation," in the Proceedings of the Fourth ARRL Amateur Radio Computer Networking Conference held March 30, 1985, in San Francisco. That article contains the schematic
