Transcript TELECOM V=fxl m/s hz m V is speed ,f is frequency l is wavelength TELECOM v =d/t v is speed in m/s d is distance in m t is time ins.

TELECOM
V=fxl
m/s
hz
m
V is speed ,f is frequency
l is wavelength
TELECOM
v
=d/t
v is speed in m/s
d is distance in m
t is time ins
TELECOM
Radio
waves are carried
from transmitter by the
carrier wave.
Speed of radio waves is
300,000,000m/s
TELECOM
The
main parts of a radio
receiver are
Aerial – receives all signals
Tuner – tunes into one
particular signal
TELECOM
Decoder
– separates the
carrier wave from the
audio (sound ) wave
Amplifier gives a bigger
copy of the audio wave
TELECOM
LOUDSPEAKER
TURNS THE
ELECTRICAL SIGNAL INTO
SOUND
DIFFERENT RADIO STATIONS
ARE IDENTIFIED BY THE
CARRIER WAVE FREQUENCY
SPACE

Radio waves are detected by large curved
dishes similar to the dish aerials in T.V.
systems