The bending of radio waves as they pass over the upper edge of
a hill or mountain is known as,
knife edge diffraction
For line of sight propagation, which frequency band is more adaptable?
What type of modulation is largely contained in static and lightning
Mobile antennas are of two types; quarter wave ground plane and
half-wave type. They are both
What is the unit of field intensity?
6. The ratio of the voltage and current infinite line or a line
terminated in its own characteristic impedance
Circuit or device that permits transmit and receive operation
using one antenna is
A circuit or device that permits two different transmitters to
operate with a single antenna,
On what TV channel do the 2nd harmonic of a 27 MHz transmitter
A plot of the relative strength or intensity of the antenna radiation
as a function of the orientation in a given plane is called
I vs V graph
R vs V graph
is the unit of magnetic field intensity?
amperes per meter
volts per meter
amperes per ohm
volts per ohm
What is the parameter that compares the concentration of power
in the given antenna to that of some reference antenna?
amplification of the antenna
radiation strength of the antenna
propagation of the antenna
gain of the antenna
The characteristic of an antenna referring to its capability of
beaming, the energy in narrow range of directions is,
When the electric field lines in a plane parallel to the earth's
surface; the polarization is said to be,
What is the resistance of free space?
The gain in the direction of one of the major lobes of the radiation
pattern is known as,
Antenna gains are measured with reference to
A device used to connect antenna to the output tank circuit of
a transmitter in order to prevent the DC supply from reaching
Transmission lines normally used for frequencies above 186 Hz
parallel wire line
When the electric field lines in a plane is perpindicular to the
earth's surface. the polarization is said to be,
What is the wavelength of tje frequency used is 300 MHz,
What is the quarter-wave length of 150 MHz?
What is the approximate height of the geostationary satellite
from the earth's surface?
What is the other name of directing in propagation of radio waves?
What is the speed of electromagnetic waves in free space?