Firmware for TNC2S / TNC2H / TNC21S

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     green: the file is downloaded immediately (format: .zip)

The binary files given here can be programmed into 27C256-EPROMs of SYMEK and compatible TNC2 (TNC2H, TNC2S, TNC21S) by use of a suited EPROM programmer. 

(16k) TF27b (Nord><Link) 10-channel (Standard)
(16k) TF27b (Nord><Link) 27-channel
(3k) sixpack Firmware
(3k) KISS-only / SMACK DL5UE
(20k) TAPR 1.1.9 Firmware incl. GPS-commands