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[aprssig] ARPS physical layer

Phil N6TCT phil_aprssig at lapsley.org
Thu Sep 16 14:26:13 UTC 2010


Nice!  I've always wondered why, by ear, the preambles of packets from
some TNCs sound different than those from other TNCs!

Phil

John Hansen wrote:
> [...] The bytes you have before the address are the 7E flags.  In
> addition, you'll find that many TNC's idle during the TXDelay period
> using 00's instead of 7E's. 



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