Definitions. For the purpose of this subsection, the following
definitions shall apply:
ANTENNA
A system of electrical conductors that transmit or receive
radio waves.
CELLULAR TELEPHONE
A system providing portable telephone service to specific
subscribers. The system works on a line-of-sight principle. Each company
must set up a "grid" system of antennas on hilltops to provide complete
coverage.
COMMERCIAL COMMUNICATIONS TOWER
A structure, partially or wholly exterior to a building,
used for transmitting or retransmitting electronic signals. Commercial
communications towers include, but are not limited to, a radio common
carrier tower or an antenna used for transmitting commercial radio
or television signals, microwave signals, cellular telephone communications
and/or satellite communications. A commercial communications tower
shall not include an amateur radio antenna or a satellite dish antenna
(as defined by this section) or an emergency services radio antenna
if such are accessory to a permitted use.
CONSTRUCTION PERMIT
A document issued by the FCC to a broadcast applicant giving
permission to construct a radio or TV broadcast station. It is not
the same as a station license.
FM/TELEVISION BROADCASTING
Transmission of radio and/or television programs intended
for reception by the general public. An "FM/television broadcasting
tower" shall mean a tower maintaining the primary or main transmitter
of an FCC-licensed broadcast station.
HEIGHT ABOVE AVERAGE TERRAIN (HAAT)
A technical term used by the FCC to determine the effective
height of an antenna by considering the effects of terrain variations
in the coverage area provided by the antenna.
HEIGHT OF TOWER
The overall height of the tower from the base of the tower
to the highest point of the tower, including, but not limited to,
antennas, transmitters, satellite dishes or any other structures affixed
to or otherwise placed on the tower. If the base of the tower is not
on ground level, the height of the tower shall include the base of
the building or structure to which the tower is attached.
INTERMODULATION
A technical term referring to the possible mixing of two
signals which creates unwanted and potentially interfering signals.
LAND-MOBILE SYSTEMS
Radio communication service for mobile or stationary units
in which each user is assigned a particular frequency. It includes
conventional two-way radio, special mobile radio service and one-way
paging.
LEASE TOWER
A tower whose owner has as his principal business the leasing
of tower space to other users.
POINT-TO-POINT MICROWAVE
Communication between specific points using frequencies above
900 MHz; normally transmitted between two towers optimally located
for line-of-sight transmission. Uses low power levels.
RF INTERFERENCE
Disturbances in reception caused by intruding signals or
electrical current.
STRUCTURAL CAPACITY
A term describing the physical ability of a tower and associated
antennas to withstand design loading without collapsing.