[amsat-bb] Re: Details on AX.25 and APRS

[Daniel Schultz <n8fgv@xxxxxxx>]

The AX25 specification is available from TAPR:
http://www.tapr.org/tapr/pdf/AX25.2.2.pdf

Dan Schultz N8FGV

>Would anyone be able to point me towards some specs for a "standard" 
>AX.25/APRS physical layer?

>I've assumed FSK, and 144.390(or 445.925), but I'm stumped by the coding 
>scheme at the moment - does everyone use manchester or NRZ or something 
>else?

>Thanks in advance,
>Daniel VA3DRF/VK2TRG
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