Ever
wondered what exactly goes on inside a TV station? Let’s say for example that
you watch local shows and see all that vibrant setups in the shows that you
watch (news, teleserye or television series, and even the commercials). Aren’t
you curious to know how these shows come to life to your television screens? For
most of us young ones (born on the technological era) I guess I can assume that
it just comes to us as ‘normal’ and that ‘this is because of the technology
today’; that basic answer can usually suffice for the curiosity of our
generation, but then diving in to what this ‘technology’ is, that takes more
than a curious mind.
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The first thing you see even before entering the vicinity is this tower |
I was given the chance to tour to a local TV
station but one of the biggest stations on our country, ABS-CBN. The first
thing you could visually see as you would approach the vicinity is this large
tower painted in strips of red and white alternately. This is the tower that
holds the antennas that transmit the broadcast signals. As an ECE student, I
asked the question “why place this in the middle of the city and not on the
mountain or somewhere high?”, then the guide just answered that it was placed
there even before there was the city and moving this elsewhere is just adding
another problem and that solving interference problems would just need
strengthening of the signal and monitoring of it.
The
tour was basically divided into two parts, one was touring around the
transmitter side and operations center and the other one was touring the
studios where the magic happens. First up was the technical operations center
(TOC). Inside the operations center lies the different offices and monitoring
rooms as well as the storage of videos. The first room (sorry no picture) right
after the entrance, called the media handler room, is where the commercials are
stored in betacams as well as catalogue. This is where all the commercials are
checked out and verified if what is labelled is the actual commercial. Commercials
are catalogue in a 30 minute sized betacam but only 30 seconds of video
information is used up. The actual cost of 30 seconds of commercial broadcast
is about 420 thousand php depending on the air time. Now why not use CD’s for
storing these commercials? The answer to that is that betacams and vhs provide
raw data which is actually better than CD’s and are easily handled; one of the
newer versions made by sony may contain about 60 minutes and is smaller than
the betacams. A newer technology is also being applied in parallel to using the
vhs and betacams, this is the tapeless recordings which are stored in a server accessible
and manageable by the personnel in the room.
The
second area is where one of the monitoring as well as calibrating (I think)
room is located, in this area, the tour guide basically told us that ABS-CBN is
capable of handling and operating digital TV broadcast because of its’ ISDBT
setup, they are just waiting for the actual standard to be applied by the
government.
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This is one of the cubicles you would see as you enter the office-like facility wherein the personnel do some editing |
The
next area containing a series of small cubicles (work stations as seen above) is where videos
are manipulated in a way to make it appear better before it is broadcast. These
videos are tapes that are recorded and then edited for its quality. I didn’t
get much from the tour guide during this part of the tour cause I was way back
and didn’t hear a thing.
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One of the monitoring rooms |
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Here you'd see a couple of people monitoring the channels |
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A man in action as he adjust the video that is being transmitted as well as coordinating with personnel through radio on a channel that has some problem |
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Same person as the one above explaining to the group (at the right side of the pillar) what he's doing |
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The monitoring room and its equipment |
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Didn't get to go inside so I don't know much about this room but it should contain the same stuff as the others |
The
next area is where the broadcast telecoms operations (BTO) and master control
room are located which basically look the same (as seen in the pictures above).
Since they look the same I assumed they operated in the same way and somehow I
was correct in a way. The BTO is capable of viewing 12 microwave feeds and 12
satellite feeds at the same time. This is possible because of the mult-viewer.
Then again I was curious as to why they needed all these feeds when the only
have one channel. I got the info I needed from the tour guide in whom he said
that not only one channel is being monitored and adjusted to perform at its
highest quality possible, but also sky cable and other TV stations under the
ownership of Lopez. In short, technical support all comes from ABS-CBN. The
feeds are stored and processed in a server, in case it bugs down, a back up
server is readily available, but in case these two servers bug down (in case),
tapes are used. For the master control room, it has the same feature wherein 12
micro and sat feeds are monitored simultaneously, but in here, the 10 studios
are also monitored. Basically Video and Audio are checked in this area; also, over
modulation is used for the audio, what this does is that it strengthens the
signal to make it (the audio) louder. In the BTO, one operator is assigned to 6
channels. This makes up of the tour around the TOC, next up is the transmitter
side.
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Outside of the transmitter facility with the ABS-CBN logo |
Here
you see the entrance to the transmitter side right below the tower in the
picture earlier.
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Equipment room |
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Here you'd see the cabinets, didn't get to picture what was inside but it contains visual drivers |
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In the middle portion you'd see the control panel |
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Here's the transmitting side which is directly below the tower |
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At the top portion you would see the dummy load used for testing and other purposes |
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Tour guide pointing at the dummy load explaining the purpose of it |
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Whole view of the room |
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This is where the Aural and Video signal are processed together |
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Just our group going back through the cabinet section as we exit the facility |
The
pictures above compromise the three parts of the transmitter side: equipment
room, transmitter room, and monitoring room. In the transmitter side, the
signals from the TOC are processed here. Since the tower is located within the
vicinity already, there is no more need for STL or station - transmitter link,
instead, fiber optics is used. In the equipment room, the processing amplifier
(coming from its name) processes the ntsc-brightness, contrast, hue of the
signal. 2 transmitters are used with 60kwatss transmitting power each. The
other one is just used for back up. 346.2 kwatts erp is generated after the
antenna gain. Another device in the equipment room is the exciter (oscillator
and modulator combined), which is used to excite the baseband signal to rf. The
driver, also located in the equipment room, is a pre-amplifier that is used to
drive one whole cabinet, wherein a cabinet contains many visual drivers. In one
of the pictures above, a dummy load is used for testing. In the transmitter
room, visual and aural signals are processed together than combined
(individually processed before going into this room). The monitoring room is
basically a small office where you could view the transmitted signal and the received
signal. These three area make up the transmitter side.
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Fire truck just outside the studios |
Here
you see a fire ambulance and rescue unit.....I guess it may come in handy
during the setups in the studios (for props or for actual fire fighting).
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The biggest and most advance studio in ABS-CBN |
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Same room but now you could see all those lights at the ceiling |
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A closer look at the lights and air conditioning vents |
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This is a picture wherein one of the light stands is being operated to go down |
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Another one of those pictures showing the technological side of the studio |
Here you see the biggest and the most advance
studio in ABS-CBN, studio 10. Visual effects are mostly done in this studio
which explains all the equipments hanging in the ceiling. Right now, a
temporary setup is being arranged. Temporary setups are setups that are
replaceable and arrange right before the airing or recording of the show.
Meanwhile, permanent setups are setups that are used for live airing. In this
studio (not really seen), there are green and blue cloths surrounding the whole
studio. These cloths are used to display the graphic effects that are placed by
computers during editing. Now why green and blue? This is because there is no
green nor blue pigmentation in the human skin, which is why it is possible to
place effects on the background and not affect the actors or the people in the
show. Now with all these lights, it would be so hot that equipment could
malfunction. In ABS-CBN, this kind of problem is solved by using conditioner
gaps which cool not only the equipments but also the whole studio. Going
through the studios, I noticed that they weren’t so big at all, this was
because of the special lenses used (wide angle and super wide angle) which make
the whole set appear larger.
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This is the hallway where artists usually pass by and our group hoping for one to pass by |
Here
you see a couple of students walking through the hallway hoping for an artist
to pass by....sadly...we weren’t able to meet one.
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This is the studio where news was done |
The
next studio is where the news is setup.
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The man in charge of our group and our professor. At the back you would see the most expensive equipment in the studio used for weather forecasts |
This is our professor who accompanied us with
the tour.
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Just the set used for the news |
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A camera with an 'idiot board' |
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Same camera in side view |
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A picture of the background and a couple of people from our group |
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Another side view of the camera used for news casting |
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Here is the set where i'd say for general use cause of the green background used for effects |
Now
the pictures above show what the news setup looks like. In the news show, there
is a part where in a hologram is visible, in truth, it appears to be a hologram
but it makes use of augmented reality. For the weather forecast (kuya kim and
his handy touch screen tv), the big display behind the guy with his camera (our
professor) in the previous picture is the U-touch. In reality, it really isn’t
touch screen but it makes use of heat sensors, if you noticed the hand gestures
the weather man does, this is actually to control the display like a touch
screen. This ‘TV’ costs about 4 million php. Other equipments used is the
camera with the ‘idiot’ board which displays the scripts the anchors say.
This
makes up the whole tour around ABS-CBN, one of the biggest, if not the biggest,
TV industries in the Philippines.