Mfj-1270c/1276 tnc 2 data contoller instruction radio computer manual Tnc mfj radio controller discontinued tncs amateur node terminal 1135 universal catalog Mfj-1270c tnc terminal node controller
MFJ-1270C TNC Terminal Node Controller
1276 mfj tnc
MFJ-1270C TNC Terminal Node Controller
MFJ-1270C/1276 TNC 2 Data Contoller Instruction Radio Computer Manual