Koolu.com

[Jarod Wilson]

On Feb 14, 2007, at 14:37, Derek Atkins wrote:

> Quoting Jarod Wilson <jarod at wilsonet.com>:
>
>> I'm not aware of any support in mythtv for anything but the  
>> decoding  being done on the viewing system, but a dead-silent HDTV- 
>> playback- capable system for only $500 would be REALLY NICE. :)
>
> Me too!!
>
>>> The wireless is currently 802.11 b/g.  We are investigating  
>>> making "a"
>>> available.
>>
>> I'd spend more time investigating 802.11n if the systems can  
>> somehow  handle hdtv playback, since b/g/a lack the bandwidth to  
>> reliably  stream hdtv...
>
> Actually, 802.11a (and g, provided you don't have any 802.11b devices
> bringing you down) should have plenty of bandwidth for an HDTV MPEG
> stream.   HD is only about 9GB/hr -> 9663676416 B/hr -> 21474836bps  
> -> 21mbps
> This is well within the range of 802.11a or g.  But it would  
> definitely
> saturate your network.

Yes, g has a marketed speed of 54Mbps, but that's a load of crap  
compared to actual throughput. The best sustained throughput I've  
seen between a Linksys AP (WAP54G) and a WRT54GS in bridge mode, with  
a very clean signal is about 2.4MB/s, or ~19Mbps. Tack on top of that  
the fact that wireless is rather lossy. For fun, I've actually tried  
playing HDTV streams over such a connection. Unless you like watching  
your television with lots of intermittent pauses, its generally not a  
good idea. I certainly wouldn't sell a product based on 802.11g and  
claim you could stream HDTV to it wirelessly.

-- 
Jarod Wilson
jarod at wilsonet.com


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