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Technology Stocks : The *NEW* Frank Coluccio Technology Forum -- Ignore unavailable to you. Want to Upgrade?

To: Peter Ecclesine who wrote (12755)	1/6/2006 8:40:31 AM
From: Frank A. Coluccio	Respond to of 46821

Peter, I was waiting for that infamous "internal-delay" shoe to drop. Tandem nodes do not a straight line of space make. Thanks. Re: 802.11n, I look forward to seeing what shakes out after Jan. 20. FAC

To: Peter Ecclesine who wrote (12755)	1/6/2006 12:15:57 PM
From: Jorj X Mckie	Respond to of 46821

Peter, That helps a lot. If it was only the speed of light, then the 50 microsecond ACK timeout that is the default for 11a on the atheros chipset would have supported much greater distances. I'm not sure exactly at what distance the ACK timeout breaks on the standard atheros chipset. But for my purposes, I am going to go with 2km as my baseline and add 10 microseconds for each km. and yup, I do understand about the right of way/line of sight that public safety gets us. The issue then becomes convincing the city officials that the benefit is worth the cost. If you can include VoIP as part of the model, it starts to look like a better model, but I am sure that you are aware of the limitations there. (though there is stuff being done to increase the number of simultaneous calls). My perception though is that the cities can get their collective heads around the public access part of the equation. However, though the public safety part sounds great on paper, the cities seem to be having a difficult time figuring out just how they want to use it. So where public safety is being used as a major justification for the muni-wifi networks, it is the part of the network that is the furthest from reality for implementation.