1. INTRODUCTION TO
BROADCASTING

2. “Broadcast”

3. “Broadcast”
Distribution of
audio and/or
video signals
which transmit
programs to an
audience.
To slide 14

4. “Broadcast”
Originally used
by farmers in the
USA in referring
to the sowing of
seeds by
scattering over a
wide field.

5. Broadcasting Systems
Institutional Public
Address
 Low-Powered
(“Narrowcasting”)
 National Radio & TV
 Satellite Radio & TV
 Internet Channels


6. Broadcasting Systems
Institutional Public
Address
 Low-Powered
(“Narrowcasting”)
 National Radio & TV
 Satellite Radio & TV
 Internet Channels

Transmits non-verbal
messages and music
within a school or a
hospital.

7. Broadcasting Systems
Low-Powered
(“Narrowcasting”)
 National Radio & TV
 Satellite Radio & TV
 Internet Channels

Transmits signal to a
small area like
community radio
stations.

8. Broadcasting Systems
National Radio & TV
 Satellite Radio & TV
 Internet Channels

Has nationwide
coverage using
transmitter towers,
satellite systems, and
cable distribution.

9. Broadcasting Systems
Satellite Radio & TV
 Internet Channels

Wider areas such as
entire continents.

10. Broadcasting Systems

Internet Channels
(Live Streaming)
Distribute text or
streamed music
worldwide.
Various audio-video
streaming host sites:
stickam.com,
ustream.tv, justintv, etc.

11. Broadcasting Systems

Internet Channels
(Podcasting)
Programs on-demand.
It is hosted by several
podcasting sites such
as podomatic.com,
soundcloud.com, etc.
Podcast players can be
embedded in blogs and
websites and can be
linked in social
networks.

12. Principles of Broadcasting

13. Principles of Broadcasting

14. Principles of Broadcasting
To slide 3

15. Principles of Broadcasting

16. Principles of Broadcasting
Full cycle

17. Principles of Broadcasting

18. Principles of Broadcasting
(Methods of Modulation)

19. Principles of Broadcasting
(Methods of Modulation)

20. Frequency Spectrum

21. Broadcast Frequencies
UHF TV Channels
(300Mhz-3,000Mhz)
AM Broadcast
(300khz3,000khz)
FM Radio & TV
(30Mhz-300Mhz)

22. Broadcast Frequencies
FREQ. BAND
FREQ. RANGE
Long Wave AM
148.5khz-283.5khz (LF) International Service
Medium Wave AM
530khz- 1710khz (MF)
Commercial Service
Short Wave Band
3Mhz – 30Mhz (HF)
Commercial Service
TV Band I (Ch.2 -6) 54Mhz – 88Mhz (VHF)
FM Radio Band II
APPLICATION
Commercial Service
88Mhz – 108Mhz (VHF) Commercial Service
TV Band III (Ch. 7 – 13) 174Mhz – 216Mhz
(VHF)
Commercial Service
TV Bands IV & V (Ch.
14 – 69)
Commercial Service
470Mhz – 806Mhz
(UHF)

23. Strengths of Broadcast Media

Impact: sight, sound motion
“Theater of the mind”

24. Strengths of Broadcast Media

Emotion
Maintains loyal audiences

25. Strengths of Broadcast Media

Personal and Intimate
presentation
Communication is direct
and personal

26. Strengths of Broadcast Media

Immediacy
Immediate

27. Strengths of Broadcast Media

Good builder of Reach
Frequency builder

28. Strengths of Broadcast Media

Local and national
Portable

29. Weaknesses of Broadcast
Media

Crosses over to
entertainment
Sound only

30. Weaknesses of Broadcast
Media

Sensationalism
Background (low attention)

31. Weaknesses of Broadcast
Media

No time for accuracy
Messages are short-lived

32. Weaknesses of Broadcast
Media

Lacks of depth
Low-reach

33. Requirements to Broadcast
It’s an authority
from the Phil.
government
issued to
companies that
use the
airwaves.

34. Requirements to Broadcast
Congressional Franchise
It’s an authority
from the Phil.
government
issued to
companies that
use the
airwaves.

35. Requirements to Broadcast
Certificate of Public Convenience
It is issued by
the NTC to
show that a firm
is capable to
operate a
broadcasting
station or
network.

36. Requirements to Broadcast
Certificate of Public Convenience
 Audited Financial
Statements for the last
3 years
 Economic Feasibility
Study
 Technical Feasibility
Study
 Permit to Purchase a
Transmitter
 Construction Permit