Sammer
join:2005-12-22
Canonsburg, PA | reply to spamd
Re: Cmon DTV Around the corner as in 5 years for most metropolitan areas and longer than that for rural areas and many small towns. Wireless is also more likely to have caps that could put a real dent in using it for video. |
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 spamdPremium
join:2001-04-22
Cherry Valley, IL | »reviews.cnet.com/8301-12261_7-10···-51.html
Uhhh, no.. 4G LTE will run on the now sold 700mhz band that SD TV ran on. You do remember those huge 1000ft antenas for the local tv station right? Well those 1000ft antennas are going to be the same ones used for 4G. That's why the wireless companies such as Verizon are paying BILLIONS of dollars to get those frequencies. Because the signal goes along way and can penetrate walls and buildings. Get it..
This also means that wireless cell companies no longer need hundreds of antennas for an area to cover they only need a few to cover the same area with the 700mzh band with 4G.
»reviews.cnet.com/8301-12261_7-10···-51.html
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1 edit | said by spamd:» reviews.cnet.com/8301-12261_7-10···-51.htmlUhhh, no.. 4G LTE will run on the now sold 700mhz band that SD TV ran on. You do remember those huge 1000ft antenas for the local tv station right? Well those 1000ft antennas are going to be the same ones used for 4G. That's why the wireless companies such as Verizon are paying BILLIONS of dollars to get those frequencies. Because the signal goes along way and can penetrate walls and buildings. Get it.. This also means that wireless cell companies no longer need hundreds of antennas for an area to cover they only need a few to cover the same area with the 700mzh band with 4G. » reviews.cnet.com/8301-12261_7-10···-51.html Trouble is, there's not enough 700 mHz spectrum available to accomodate everyone's broadband needs. Moving pictures take a TON of bandwidth-and you simply can't get away from this fact. |
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| reply to spamd
You are off a bit about how cellular technology works. They can't use 1000 ft towers to service large areas. The cell would be over saturated (not enough spectrum and bandwidth to go around) and many people would just end up with system busy messages. In urban areas they will actually need the same amount but then have to detune them. The new problem will become pilot pollution because the 700 carries a little bit farther than 850. It isn't much but enough that current spacing is a bit close but if they skipped every other cell the signal would carry that far. The issue is also transmit power of the tower and that of the mobile device. TV stations were broadcasting in many thousands of watts while cell towers and phones are limited to a very low wattage. To get the speed out of 4G the same towers are going to be used for the most part and the limiting aspect will be how much backhaul those companies can get in place. |
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