Connecting Communities through Ham Radio and the Internet.

448.260 MHz (-) PL tone 127.3.0 SUNSET RIDGE MT. BALDY, CA

448.260 MHz (-) PL tone 67.0 MT. LUKENS PASADENA, CA

In 1996, there was an article in the December issue of QST magazine entitled 'A New "Band" for Your Radio  'written  by James Millner, WB2REM. From then on, a number of systems were introduced. Hereunder are some of them and the links to their site. 

RptrLink  http://www.mebcs.com/rptrlink/index.html -A program designed for repeater control operators and amateur radio operators wishing to access world wide repeater networks with IPhone.
As a Repeater Control-Op, RptrLink provides a simple means of validating internet access by validating the incomming callsign using On-Line callbook servers.
As a normal internet IPhone user, RptrLink provides your callsign to the remote Repeater and upon validating, will place the IPhone user on the Repeater just as though they were accessing using a local transeiver. 

Speak Freely http://www.fourmilab.ch/speakfree/windows/  

(This Software is where IRLP was based on.) 

Speak Freely is a Windows application that allows you to talk (actually send voice, not typed characters) over a network. If your network connection isn't fast enough to support real-time voice data, four forms of compression may allow you, assuming your computer is fast enough, to converse nonetheless. To enable secure communications, encryption with Blowfish, DES, IDEA, and/or a key file is available. If PGP is installed on the user's machine, it can be invoked automatically to exchange IDEA session keys for a given conversation. Speak Freely for Windows is compatible with Speak Freely for Unix, and users of the two programs can intercommunicate. Users can find one another by communicating with a "Look Who's Listening" phonebook server. You can designate a bitmap file to be sent to users who connect so they can see who they're talking to. Speak Freely supports Internet RTP protocol, allowing it to communicate with other Internet voice programs which use that protocol; in addition, Speak Freely can also communicate with programs which support the VAT (Visual Audio Tool) protocol.

IRLP (Internet  Radio Linking Project)  http://www.irlp.net 

IRLP stands for the Internet Radio Linking Project. The aim of this project is to link radio systems separated by long distance without the use of expensive leased lines, satellites, or controllers.

The IRLP uses Voice-Over-IP software and the power of the Internet to link your radio site to the world. The system uses its own custom interface board and software suite which makes interfacing your radio system to the world simple and cost effective.

The IRLP runs a large network of dedicated servers and nodes to offer the very best in voice communications. The heart of the IRLP is its Amatuer Radio network which reaches hundreds of towns and cities across North America, linking them all with a full dynamic range, telephone quailty sound.

iLink  (Internet-Link Linking Project) http://www.aacnet.net

Having tried many ways of linking radio to the internet - Graeme Barnes decided that it must have a few basic services. Users must be able to use it on a pc connected to the internet in a easy to use interface, showing which stations are active and where. Mobiles must have control over the link and be able to switch links quickly. There must be basic security features to enable logout, callsign verification and blacklist registration.

The only system that came close was the IRLP project, but this did not allow users to access from the internet at all, and needs Linux to be installed - which I dont think many of us really want to do just to run a basic link , so iLINK was born in MAY 2001! Hopefully both systems will be able to run side by side as IRLP is 100% secure repeater linking.

E-QSO (by M0ZPD)

Another neat system created by M0ZPD.  

Echo-Link by K1RFD

Copyright 2000.
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Last updated: March 12, 2003