[amsat-bb] Re: Naive

Mark L. Hammond marklhammond at gmail.com
Mon Nov 29 16:59:14 PST 2010

Robert, typical 9600 packet sounds like "shhhhhhhh".  In some cases, it makes the static background quiet--rather than seeming to make much of a noise.

Your ear won't be able to tell GMSK from FSK...most modems can't tell the difference either :)

I've never heard 9600 that sounded like 1200...

I would fully expect the D700 to work on RAX.



At 12:03 PM 11/29/2010 -1000, Robert Smith wrote:
>Aloha All
>Success stories do not always tell the 
>whole story. While I have been very 
>successful with 1200 baud packet on 
>my Kenwood D700 I have done very 
>little with the 9600 baud. The new 
>Satellite RAX is 9600 GMSK. In 
>tracking the bird, the 20 second interval
>packets sound like fuzzy static.
>It seems to me that other 96k signals
>I have heard sounded much like APRS
>at 1200 except significantly speeded
>up. Is GMSK different and will the 
>D700 interpret the signal???
>I haven't found a whole lot on this topic
>on the web. 
>Mahalo and a great week to all. 
>robert, NH7WN
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Mark L. Hammond  [N8MH] 

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