Re: [digitalradio] Re: ARQ Soundcard Modes

2006-09-17 Thread Patrick Lindecker
Hello,

Note: there are not the only modes without documentation...
No amateur modes. The optimum possible is the DominoEX specifications of Murray 
ZL1BPU
(a professional work). Some amateur modes are only documented through source. 
It's possible to extract specifications from a source but it's a very big (and 
boring) job. Some others amateur modes are only documented through general 
ideas. Sometimes you can guess the remainder, sometimes no.

If a request is made to view the documentation is there an explanation as to 
why it is secret?
The amateur world is not the professional world. There is simply no 
documentation because it's fun to create a new mode, boring to write detailed 
specifications. Amateurs can answer to your questions according to their 
memory, that's all.

73
Patrick
 


  - Original Message - 
  From: kd4e 
  To: digitalradio@yahoogroups.com 
  Sent: Sunday, September 17, 2006 7:11 PM
  Subject: Re: [digitalradio] Re: ARQ Soundcard Modes


   Note: there are not the only modes without documentation...
   
   73 Patrick

  Are the other undocumented modes also commercial
  products?

  If a request is made to view the documentation
  is there an explanation as to why it is secret?

  -- 

  Thanks!  73,
  doc, KD4E
  ... somewhere in FL
  URL: bibleseven (dot) com


   

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Re: [digitalradio] Re: ARQ Soundcard Modes

2006-09-16 Thread Patrick Lindecker
Hello,

Is it just that the Pactor mode allows only a very short time
for the ACK/NAK, or is there some synchronization from packet
to packet that must be maintained? 
The second proposal is the good one.

Is it possible that one could write a sound card program that could monitor 
Pactor II/III
transmissions even if it can't interoperate with the SCS TNC?
If the (detailed) specifications of Pactor II and III were public, it would be 
possible to monitor these transmissions (but not work them, for the same 
problem as for Pactor 1). 

73
Patrick
 

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[digitalradio] Re: ARQ Soundcard Modes

2006-09-16 Thread Dave Bernstein
A question for you, Patrick: in your opinion, is the public 
documentation for Pactor 2 and Pactor 3 sufficient to allow you to 
build your own implementations?

   73,

   Dave, AA6YQ


--- In digitalradio@yahoogroups.com, Patrick Lindecker [EMAIL PROTECTED] 
wrote:

 Hello,
 
 Is it just that the Pactor mode allows only a very short time
 for the ACK/NAK, or is there some synchronization from packet
 to packet that must be maintained? 
 The second proposal is the good one.
 
 Is it possible that one could write a sound card program that 
could monitor Pactor II/III
 transmissions even if it can't interoperate with the SCS TNC?
 If the (detailed) specifications of Pactor II and III were public, 
it would be possible to monitor these transmissions (but not work 
them, for the same problem as for Pactor 1). 
 
 73
 Patrick
  
 
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Re: [digitalradio] Re: ARQ Soundcard Modes

2006-09-16 Thread Patrick Lindecker
Hello Dave,

I have got all the possible documentation about these two modes (Pactor 2 and 
3). But in fact, I did not find the detailed specifications, only general 
specifications which gives several ideas about these modes but nothing more. 
However, I found the Pactor 1 detailed specifications (English translation of 
the German original specifications), which allowed me to implement it (FEC mode 
only).

Note: there are not the only modes without documentation...

73
Patrick




  - Original Message - 
  From: Dave Bernstein 
  To: digitalradio@yahoogroups.com 
  Sent: Saturday, September 16, 2006 10:29 PM
  Subject: [digitalradio] Re: ARQ Soundcard Modes


  A question for you, Patrick: in your opinion, is the public 
  documentation for Pactor 2 and Pactor 3 sufficient to allow you to 
  build your own implementations?

  73,

  Dave, AA6YQ


  --- In digitalradio@yahoogroups.com, Patrick Lindecker [EMAIL PROTECTED] 
  wrote:
  
   Hello,
   
   Is it just that the Pactor mode allows only a very short time
   for the ACK/NAK, or is there some synchronization from packet
   to packet that must be maintained? 
   The second proposal is the good one.
   
   Is it possible that one could write a sound card program that 
  could monitor Pactor II/III
   transmissions even if it can't interoperate with the SCS TNC?
   If the (detailed) specifications of Pactor II and III were public, 
  it would be possible to monitor these transmissions (but not work 
  them, for the same problem as for Pactor 1). 
   
   73
   Patrick
   
   
   [Non-text portions of this message have been removed]
  



   

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[digitalradio] Re: ARQ Soundcard Modes

2006-09-15 Thread jhaynesatalumni
I'm still trying to understand this matter of precision timing.

Is it just that the Pactor mode allows only a very short time
for the ACK/NAK, or is there some synchronization from packet
to packet that must be maintained?  Is it possible that one could
write a sound card program that could monitor Pactor II/III
transmissions even if it can't interoperate with the SCS TNC?






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