From The Central Florida Geeks

HamRadio: VHF Digital Modes

Introduction

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Packet Radio (AX.25)

AX.25 is a data link layer protocol derived from the X.25 protocol suite and designed for use by amateur radio operators.[1] It is used extensively on amateur packet radio networks.

Notes: AX.25 protocol

APRS

APRS is an amateur radio-based system for real time tactical digital communications of information of immediate value in the local area.

Notes: A.P.R.S.

D-STAR

(Digital Smart Technologies for Amateur Radio) is a digital voice and data protocol specification developed as the result of research by the Japan Amateur Radio League to investigate digital technologies for amateur radio.

Notes: D-STAR

WSJT

WSJT is a computer program used for weak-signal radio communication between amateur radio operators. The program was initially written by Joe Taylor, K1JT, but is now open source and is developed by a small team.

Notes: WSJT

APCO-25

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HSMM

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High-speed multimedia

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public service

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Revised: David March 13, 2012, at 03:10 PM EST

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Page last modified on March 13, 2012, at 04:56 PM EST