Empowerment Technology

2. Today we’ll be talking about
AM and FM radio. So what
are these? What do we need
to talk about these? Are these
important? I’m pretty sure
you have these questions in
your minds so listen
carefully.

3. AM (amplitude modulation) and FM
(frequency modulation) are types of
modulation (coding). The sound of the
program material, usually comes from
a radio studio, used to vary a carrier
wave of a specific frequency, then
broadcast.

5. AM "Amplitude Modulation" broadcasting
is radio broadcasting using amplitude
modulation transmissions. It was the first
method developed for making audio radio
transmissions in the mid 1870s and is still
used worldwide, primarily for medium
wave transmissions, but also on the
longwave and shortwave radio bands.

7. FM "Frequency Modulation"
is short for frequency
modulation, which refers to
the means of encoding the
audio signal on the carrier
frequency.

9. Music sounds so much better on FM,
beacuse FM uses a higher frequency
range and a bigger bandwidth than
AM. This means that an FM station
can transmit multiple times as much
information as an AM station

11. FM radio works the same way that AM
radio works. The difference is in how
the carrier wave is modulated, or
altered. Am has poorer sound quality,
but it is cheaper and can transmit over
long distances, however FM has better
sound quality due to highest
bandwidth.

13. In addition to serving as the
lifeblood of emergency
communication, they also
provide jobs and play a day-to-
day role in the lives their
communities.

15. The oldest radio station in
the Philippines is the
DZRH that was established
on July 15, 1939. It is
operated by Manila
Broadcasting Company.

16. So that’s pretty
much it i hope you
learned something!