ELECTRONIC
COMMUNICATION
SYSTEM
AQUINO, JARRELLE CHRISTOPHER
ASMERALDE, CHARLES GABRIEL
SOGUILON, ANGELINA MARIE
AGENDA
01 Inventors in Electronic Communication Field
02 Application of Electronic Comms
03 New Frequency Allocation
01
Inventors in Electronic
Communication Field
Guglielmo Marconi
● Born in Bologna, Italy.
● Marconi’s father was Italian, while his
mother was Irish.
● Education: Attended Livorno Technical
Institute and the University of Bologna
MARCONI’S Wireless Comms
Inspiration Work
The discovery of "invisible waves" In 1895, Guglielmo Marconi constructed
produced by electromagnetic interactions the device and used it to send electrical
made German physicist Heinrich Rudolf signals from one end of his home to the
Hertz's work fascinating to Marconi in other and from the home to the garden. In
1894. actuality, these trials marked the
beginning of widespread wireless radio
or telegraphy.
Nikola Tesla
● Born in Smiljan, Austrian Empire.
● Tesla was from a Serbian-American
family. His mother was clever but
unschooled, while his father was an
Orthodox priest.
Nikola Tesla
• The rotating magnetic field, the foundation of the majority of alternating-current
equipment, was developed and patented by Serbian American inventor and engineer.
• Additionally, he created the three-phase electric power transmission system.
• He created the Tesla coil, an induction coil utilized extensively in radio technology, in
1891.
John Ambrose Fleming
● Born in Lancaster, Lancashire.
● Engineer from England who made
significant contributions to wireless
telegraphy, photometry, electronics, and
other fields.
John Ambrose Fleming
Early Years Fleming Valve
Fleming studied photometry, Fleming is most known for creating the
experimented with high-voltage two-electrode radio rectifier, sometimes
alternating currents, and created some of referred to as the vacuum diode, kenotron,
the earliest shipboard electric lighting thermionic tube, and Fleming valve,
systems. which he termed the thermionic valve.
Reginald Fessenden
● Fessenden, who was raised in East
Bolton, Quebec, Canada, had a good
education. At the age of 18, he was
appointed headmaster of a Bermudan
school.
Reginald Fessenden
• Discovered Amplitude modulation (AM) radio and its scientific foundation.
• He put into reality the concept of combining two high frequency signals to transmit the
audible low frequency of the human voice with his heterodyne technique.
Edwin Howard
Armstrong
● Born in New York City native.
● Graduated from Columbia University
with a degree in electrical engineering
in 1913.
Edwin Howard Armstrong
• He created the regenerative circuit while still in college, which was the first amplifying
receiver and the first trustworthy continuous-wave transmitter.
• The superheterodyne circuit, which he developed in 1918, is a very selective method of
recording, converting, and significantly amplifying relatively weak, high frequency
electromagnetic waves. His greatest accomplishment, wide-band frequency modulation,
or FM radio, was created in 1933.
02
Application of
Electronic Comms
Walkie-Talkie
A walkie-talkie is a portable, hand-held two-way radio transceiver, more technically known
as a handheld transceiver (HT). Donald Hings, radio engineer Alfred J., and others have
received varying credit for its creation during World War II.
Frequency Range:
462.5625 MHz to 462.7250
MHz
RFID
Tags and readers are the two halves of the
wireless system known as Radio Frequency
Identification (RFID). The reader is an
electronic gadget with one or more antennas
that transmit radio waves and take in signals
from RFID tags.
300 to 1000 MHz
433 MHz and 860-960 MHz
433 MHz for active tags
860-960 MHz for passive tags
03
New Frequency
Allocation
New Frequency Allocation for Digital Broadcasting
• In order to develop a DTT service, the commission will employ channels 14 to 51 of the
ultra-high frequency television system (470-698 MHz), freeing up channels 14 to 20
(470-512 MHz), which are now used for fixed and mobile services.
Thank You for listening!
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