Hi,

thanks for the link.  I wasn't able to deduce from that page how the 
encoding/decoding works (call me dumb!).  Is there any other web page  
that would explain it?

I note your comment about stability.  Will your average radio have 
similar stability or does the encoding method mean that that isn't an issue?

Thanks

Ian

ChrisAtUpw@....... wrote:

> In a message dated 10/07/06, ian@........... writes:
>
>> out of interest, what's the spec of how the data is encoded?  I'm 
>> wondering if a sound card can decode it.
>
>
>
> Hi Ian,
>
>        It is sent as a narrow band sine wave tone. The channel 
> separation is only 340 Hz. For the center frequencies see 
> http://psn.quake.net/onlinedocs/demoddoc.html
> Hence the need for a precision encoder like the XR2206.
>        Does a sound card to have a stability in the low ppm range? 
>
>        Regards,
>
>        Chris Chapman





  
  


Hi,



thanks for the link.  I wasn't able to deduce from that page how the
encoding/decoding works (call me dumb!).  Is there any other web page 
that would explain it?



I note your comment about stability.  Will your average radio have
similar stability or does the encoding method mean that that isn't an
issue?



Thanks



Ian



ChrisAtUpw@....... wrote:

In a message dated
10/07/06, ian@........... writes:

  

  
out
of interest, what's the spec of how the data is encoded?  I'm wondering
if a sound card can decode it.
  

  

Hi Ian,

  

       It is sent as a narrow band sine wave tone. The channel
separation is only 340 Hz. For the center frequencies see
http://psn.quake.net/onlinedocs/demoddoc.html

Hence the need for a precision encoder like the XR2206.

       Does a sound card to have a stability in the low ppm range?  

  

       Regards,

  

       Chris Chapman