TC 9-64 _________________________________________________________________________
center-feed method
Connecting the center of an antenna to a transmission
line, which is then connected to the final (output) stage
of the transmitter.
characteristic
The ratio of voltage to current at any given point on a
transmission line. Represented by a value of impedance.
coaxial line
A type of transmission line that contains two concentric
conductors.
collinear array
An array with all the elements in a straight line.
Maximum radiation is perpendicular to the axis of the
elements.
combination array
An array system that uses the characteristics of more
than one array.
complementary
The colors of light produced when two of the primaries
(secondary) colors of
are mixed in overlapping beams of light. The
light
complementary colors of light are magenta, yellow, and
cyan.
complex wave
A wave produced by combining two or more pure tones
at the same time.
compression waves
Longitudinal waves that have been compressed (made
more dense) as they move away from the source.
The opposite of resistance in transmission lines. The
minute amount of resistance that is present in the
insulator of a transmission line.
connected array
Another term for DRIVEN ARRAY.
copper losses
The I2R loss in a conductor caused by the current flow
through the resistance of the conductor.
corner-reflector
A half-wave antenna with a reflector consisting of two
antenna
flat metal surfaces meeting at an angle behind the
radiator.
counterpoise
A network of wire that is connected to a quarter-wave
antenna at one end and provides the equivalent of an
additional one-quarter wavelength.
coupling device
A coupling coil that connects the transmitter to the
feeder.
crest (top)
The peak of the positive alternation (maximum value
above the line) of a wave.
Glossary-2
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