[amsat-bb] Re: BeeSat at 4800 GMSK

[Tom Azlin N4ZPT]

NO.  I was simply saying that the open source is there for the 4800 bps 
GMSK sound card modem. NOT using D-STAR Digital Voice. That has already 
been done via satellite.

NO, I was just saying ignore the high speed mode.

73, Tom n4zpt

Nathaniel S. Parsons wrote:
> Ah, thanks for clarifying. Unfortunately, if I understand you correctly, we
> would have to talk to our satellite via digital voice, or at 128kbps, which
> would be great if we could!
> 
> -Nate
> 
> On Sat, Apr 10, 2010 at 10:15 PM, Tom Azlin N4ZPT <n4zpt at cox.net> wrote:
> 
>> Well, make that the digital voice part of the protocol. The high speed
>> digital data part is up to 128kbps which was not what I was thinking of.
>>
>> 73, tom n4zpt
>>
>> Tom Azlin N4ZPT wrote:
>>
>>> Hi Nate,
>>>
>>> the D-STAR protocol is only GMSK at 4800 bps and they selected a
>>> time-bandwidth product of 0.5. 4,800 bps or 4k8 is perhaps not talked about
>>> as that IS the standard for D-STAR. So the software there might be
>>> adaptable.  that is the reason I thought to suggest it.
>>>
>>> Good luck and 73, Tom n4zpt
>>>
>>>
>>>
>>> Nathaniel S. Parsons wrote:
>>>
>>>> Hi Tom,
>>>>
>>>> My mind had indeed played a trick on me, and I remembered MFSK as MSK.
>>>>
>>>> As far as the DStar group goes, I don't see any mention of 4800 bps or
>>>> 4k8
>>>> kbps on the public page, so if it's not the group's focus, I don't want
>>>> to
>>>> have to rely on that solution.
>>>>
>>>> Thanks,
>>>> -Nate KC2SVI
>>>>
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>