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whats up with mediaFLO?


Feb 2, 2008, 4:34 PM
Were getting mediaflo at ATT soon. I'm not real sure exactly how it works from a technical standpoint. I know its broadcast in 700mhz but VZW/ATT don't own any spectrum there(yet). So is it in some unlicensed band in 700? If not, who owns it? Qualcomm? I also fail to see the monetary advantage of carriers using this technology since it requires dedicated handsets, etc.

Feb 2, 2008, 7:31 PM

Feb 3, 2008, 12:04 AM
http://en.wikipedia.org/wiki/MediaFLO »

In the current US implementation, FLO is transmitted by a network of high-power broadcast transmitters operating at powers as high as 50 Kilowatts. This allows for a coverage area of a transmitter to be as large as 30-40 km. [7]

The transmission is an encrypted OFDM set of QAM signal sent on a 5.55MHZ channel centered at 719MHz (The former UHF TV Channel 55). All of the transmitters send the same signal and use the same frequency. This allows the mobile to decode the signal from more than one transmitter in the same way that it might if it was a delayed version from the same transmitter.[7]

Some other operational parameters of MediaFLO are as follows:

Feb 3, 2008, 5:49 PM
Qualcomm owns and operates it so you have to have a contract with them. It's usually used for mobile tv.

Feb 4, 2008, 7:10 PM
Thanks for the info. Wikipedia was a little vague.

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