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[aprssig] IP Based Modems (TNCs)

Andre PE1RDW aprs at pe1rdw.demon.nl
Sat Dec 10 16:55:38 UTC 2005


Christensen, Eric schreef:

> Has anyone thought about building a modem (TNC) that can be controlled 
> via IP?  I'm thinking of a modem with a RJ-45 in the back vice the 
> RS-232 and assign it a static IP and just send data to it.  I could 
> imagine some really interesting scenarios with that combination.
>  
> Eric KF4OTN

Sounds like a tnc4e http://www.hbtron.de/afu/tnc4edesc.html
unfortunatly that side is in german so you might need bable fish to make 
sence of it.
In short it is a tnc with 3 interchangeble modems (300 baud - 1.5 mbaud) 
a serial and ethernet connector and updateable firmware.
It accepts ax25 over tcp/ip or can act as ip over ax25 bridge/router.

73 de Andre PE1RDW




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