[opendtv] Re: News: WirelessHD Consortium

  • From: John Willkie <johnwillkie@xxxxxxxxxxxxx>
  • To: opendtv@xxxxxxxxxxxxx
  • Date: Mon, 6 Nov 2006 17:55:48 -0800 (GMT-08:00)

yeah, unlicensed spectrum is so much better than licensed (primary user) 
spectrum to send signals over distance.

think cb versus FM radio.

John Willkie

-----Original Message-----
>From: Bob Miller <robmxa@xxxxxxxxx>
>Sent: Nov 1, 2006 1:34 PM
>To: opendtv@xxxxxxxxxxxxx
>Subject: [opendtv] Re: News: WirelessHD Consortium
>
>As far as I know that is all licensed spectrum, LMDS/MMDS, none of
>which I own. Also had a lot of problems with LMDS spectrum years ago.
>No, I like the very high directionality of this spectrum in the 60 GHz
>and 80-90 GHz and I like the fact that 60 GHz is unlicensed and 80-90
>is minimally licensed. That is a fee for and quick registration of
>only.
>
>Have no problem with IEEE 802.16 but I believe it is designed more for
>a shared shotgun RF use and not for the rifle shot full duplex
>multiple Gbps connections I am interested in.
>
>Bob Miller
>
>On 11/1/06, Manfredi, Albert E <albert.e.manfredi@xxxxxxxxxx> wrote:
>> Bob Miller wrote:
>>
>> > Line of sight yes but I don't think bird fade is an
>> > issue, more like window washer fade. The beam is
>> > spread near the transmitter and receiver. At low
>> > cost you could envision all nodes having multiple
>> > transceivers with each being full duplex backups of
>> > each other. A meshy redundant network
>>
>> Bob, I still don't understand what you are creating here.
>>
>> The article we're referring to talked about a 10 meter range system, for
>> internal hookup of audio/video equipment where the video can be
>> uncompressed. A wireless form of HDMI, if you will. That's why the
>> comparison with UWB, which is intended for a similar mission, or maybe
>> better characterized as "wireless USB."
>>
>> You seem to be adressing something else. If you are trying to use a 60
>> GHz carrier for a two-way last mile link, then what's wrong with the
>> existing IEEE 802.16, MMDS/LMDS, which is already a standard that takes
>> you all the way up to 66 GHz, and does so with any number of optional
>> encapsulations (i.e. even ATM, if you like)?
>>
>> Bert
>>
>>
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> 
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