[net.ham-radio.packet] Need info on packet radio

cmoore@amdimage.UUCP (chris moore) (10/08/85)

Could someone please tell me where I can find more information
on packet radio?  I'd like to build up my own TNC, but I don't
know all the details of how information is exchanged.  I have
found out (although I may be wrong) that the modulation is
Bell 202 (1200 bps 1200/2200 Hz), and that data is encoded using
NRZI in SDLC frames.  (Am I right so far?)  I also have a document
on level 2 AX.25 standard, but its 3 years old and I wonder about
it's accuracy.  Any pointers to documentation or help with setting
up a station would be greatly appreciated.  I have heard about
the TAPR TNC's, but I'm determined to do this the hard way and
build my own.  Thanks in advance.

				Chris Moore

-- 

Of course we have backup tapes.  Do you want last year or the
 year before?

 Chris Moore (408) 749-4692
 UUCP: {ucbvax,decwrl,ihnp4,allegra}!amdcad!amdimage!cmoore

acardenas.ES@Xerox.ARPA (10/12/85)

From: acardenas.ES@Xerox.ARPA
GADS,  Chris!


Don't re-invent the wheel!... Do take advantage of the  Kantronics TNC
sale!...

Built, debugged,  ready to go.... $219...   Just  LOVE  mine! Don't
wait!

I  connected the  Puppy to my  HT  and to a Commodore 64  (A cheep
{$50-used} VIC 20  will do)  and  CONNECT! 


Tony Cardenas
WA6IGJ
QA Auditor,  
6085 Project.ES