TCP/IP on VHF/UHF/SHF Frequency

Last update	14/3/2008
Projet realisation	5%
Todo	Testing

 

This first step of this project consist to create a link TCP/IP between my QTH in Britanny and the radio-club F6KPQ.
The data rate expeted is 9600 Baud with 144Mhz for the frequency, and next step is the same but with DSTART technologie !

Technologie overview

"old system" Technologie "radioamator" TCP/IP over AX 25

AGWPE

"New system" Numeric techno D-STAR

D-star is a new modulation system based on TNC numerical and classic transceiver more info on d-start website. This technologie is better thant classic FM mods and enable data transmission up to 128Kb/sec (on 1,2Ghz).

For the moment the cost of this techno is expensive (400$ by equipement...), but it's the beginning of this technologie open for amator !

A Japan radioamator have create an implementation of this technologie and purpose
to create transceiver interface to transmit / receive via this communication protocol : http://d-star.dyndns.org/

Another good website witch present this technologie : http://n6six-hamshack.50megs.com/custom_1.html

 

 

Interesting pages

KA9Q : http://www.ka9q.net/code/ka9qnos/

AGWPE : http://www.patmedia.net/ralphmilnes/soundcardpacket/6modes.htm

 

 

 

Internet related link

DSTAR : http://raqi.ca/va2aka/SystemeDStar.html

MIXW : http://www.mixw.net/index.php?j=related

F6BMX Website : http://f6bxm.free.fr/carte%20son/index1.htm