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[aprssig] Mobile Packet Range

Stephen H. Smith wa8lmf2 at aol.com
Sat Sep 15 20:50:28 UTC 2007

Scott Miller wrote:
> Or without paying money to either Icom or Digital Voice Systems.
> (Hint - you legally CAN'T do the latter.  Every voice D-Star radio has 
> to have an AMBE codec.  You can't duplicate it, you can't disclose how 
> it works even if you pay thousands of dollars for a license, and you 
> can't reverse engineer it.  I can't think of ANYTHING more contrary to 
> the spirit of amateur radio then a mode that depends on one critical 
> piece that we're not ALLOWED to understand.)
> Scott
> N1VG

Except perhaps the proprietary Pactor III protocol that unattended 
automatic mailbox systems that clog the HF digital bands use.   The ONLY 
way to interact with these systems is with an nearly 1 kilobuck TNC made 
by one company in Germany that refuses to license the protocol to other 
vendors, let alone to home-brewers or software sound card developers.  


Stephen H. Smith    wa8lmf (at) aol.com
EchoLink Node:      14400    [Think bottom of the 2M band]
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