[TenTec] Seriously OT: High Speed CW

[tongaloa]

Missed your reply. Incorrect time applied somewhere enroute.
Friend who attends standards meetings for codecs says 2kbps
by tokenizing speech components.
With 16QAM that's what 500Hz?
Competitive with high speed CW :-)
-Bob

John Graves wrote:

> I am not good at the math but with G.723 you can get voice down to 
> about 5 kbps without a wrapper. So with Quad modulation, what baud 
> rate are we looking at?  Does that translate to a baud of 1.25 kbps?  
> Can't we get that into a 3khz  window...That's all modems are looking 
> into???
>
> John
> WB1EHL
>
>
>
>
> At 03:24 PM 2/13/2004 -0500, tongaloa wrote:
>
>> It would be kind of fun to mess around with 6kc-10kc bandwidth digital
>> modes. Would take up no more space than the HiFi SSB. HF 16 QAM
>> anyone?
>>
>> jhgraves at gis.net wrote:
>>
>>> Given the high level of concern for broadband SSB shown on the list
>>> recently, I thought it resonable to make the following proposition.  As
>>> we all know, the width of a CW signal increases as a function of the
>>> switching speed.  Given that high speed CW is therefore occupying a
>>> larger bandwidth that I at 5 wpm, should there not be some quiet corner
>>> devoted solely to slow speed CW.  We could then operate quietly and
>>> efficiently, and feel good about only occupying a proper amount of
>>> bandwidth.
>>
>>
>>
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>
> John Graves
>
> Dynamic Devices, Inc.
> 781-245-9100
>
> We make  your  data, data and voice, and data, voice and video 
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