This article is from the Wireless Cable TV FAQ, by Brian J. Catlin catlin@cs.colostate.edu.
CellularVision/Suite12 is a company that has been granted special
permission by the FCC to transmit video services on a higher
frequency than what wireless cable uses. They have been testing
in the 28 GHz (or LMDS) band. It is believed that the FCC may
allocate two sets of 50 channels in this band for wireless cable
type service.
CellularVision is hoping to provide television plus much more.
Since the signal is interleaved, it is possible for a large number
of services to occupy a narrow bandwidth. CellularVision is
planning on offering interactive networking, grocery ordering,
bank transactions, and video teleconferencing. I am not sure what
all CellularVision is planning on offering during this initial
testing period.
However, using the 28 GHz band means sacrificing signal range.
These signals aren't able to achieve even the 25-30 mile range
that MMDS and other 2 GHz services are able to get, given the same
transmitting power. To get around this, they are using 35 "cell
sites" to transmit the programming. They hope to offer service to
over 6.3 million subscribers in the region around New York City by
1995.
 
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