"It is clear that GPS devices are purposefully designed to look into LightSquared's licensed spectrum"

"Unlicensed spectrum is, economically, a very different type of good from the kind of good from licensed spectrum," his post against the proposal concludes:

BRACNet has built its nationwide network utilizing its licensed spectrum.

This leaves plenty of space available for other digital services such as cable internet, cable telephony and wireless services, using both unlicensed and licensed spectrum.

The licensed spectrum is divided in 44 channels of 20 kHz each.

On the other hand, cellular radio technologies are founded on the ability to do network planning within licensed spectrum.

Because it uses public airwaves rather than a licensed spectrum, signals are vulnerable to interference if providers overload a frequency in a market.

This service is transmitted over a licensed spectrum of 2.5-2.6 GHz in Canada.

This enables network operators to offer mobile TV without the need for additional expensive licensed spectrum and without requiring new infrastructure and end-user devices.

Wi-Fi is a small cell but does not operate in licensed spectrum therefore cannot be managed as effectively as small cells utilising licensed spectrum.