Technical Packet

This is a list of articles and specifications about packet radio.

10 Sept 2017 version of the AX.25 V2.2 specification is here:
AX25.2.2-Sep 17-1-10Sep17.pdf

KISS Protocol for easy automated control of a TNC and computer controlled binary transfers
KISS Protocol

Paper on APRS discusses low level packet TNC operation and specific modifications made to TNC designs to support modern APRS.
http://digitalcommons.calpoly.edu/theses/1341/
While it is primarily focused on APRS, the concepts and issues it discusses are directly applicable to packet.

W2FS's 1998 article discusses using a cheap CPU to send packets.
https://www.tapr.org/pdf/DCC1998-PICet-W2FS.pdf

W2FS’s 2000 article on receiving packets with a cheap CPU
https://www.tapr.org/pdf/DCC2000-PIC-et_Radio_II-W2FS.pdf

W2FS's 2003 article about the TNC-X (which is modified to be the TNC-PI a few years later)
https://www.tapr.org/pdf/DCC2003-TNC-X-W2FS.pdf

1998 version of the AX.25 V2.2 specification is here:
https://www.tapr.org/pdf/AX25.2.2.pdf

Article on the G3RUH modem for AMSAT
http://www.amsat.org/amsat/articles/g3ruh/109.html

Article on KD2BD modem for AMSAT
https://www.amsat.org/amsat/articles/kd2bd/9k6modem/

WD6EHR Article on radio interfacing for 9600 baud packet
ftp://ftp.tapr.org/general/9600baud/96man2x0.txt