CTN: Carbondale Terrier Network

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CTN Carbondale Terrier Network

• Distribute Information
• Through Your School Cable TV System

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Why?

• Paper copies of bulletin were printed and
  distributed daily to all teachers staff need
  to reduce paper.
• Daily bulletin was not always read in all
  classes.
• School is already wired for centralized cable TV
  distribution.
• We needed improved communication.
• We never participated in Channel One.

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Equipment Needed

• Channel Deletion Filter
• RF Modulator
• Cable Splitter/Combiner
• Video Signal Switchbox
• Computer for Video Distribution
• VCR/DVD Player

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Channel Deletion Filter
Place in path of incoming cable feed to eliminate
signal from chosen channel. Has IN and OUT.
We used a Channel 19 filter at the suggestion of
the cable company (was QVC). Price Around 600
from a cable TV supplier
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RF Modulator
Device to convert video and audio signals to RF
signal and send into cable distribution
system. Can program any channel to use for
broadcasting. Price Around 600 from a cable TV
supplier
Video and Audio inputs (RCA/phono types) and
coaxial cable output.
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Cable System Plan
Send combined signal into distribution system
Cable feed from Channel Deletion Filter
Cable Distribution Amplifier
Combine signal from cable amplifier with signal
from modulator
Line From RF Modulator
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Video Switch
A simple video selector switch can be used to
combine sources and supply one output to go to
the modulator. Price 30 We currently have 2
computers hooked up. We will add a DVD/VCR player.
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Audio Output
Audio must be connected to the video source
switchbox along with the video. We use speakers
with a headphone jack to control the sound
output. We can turn off the speakers and no sound
will be sent through the system. If we need sound
for the news broadcast, we can turn on the
speakers and control the output with the volume
control.
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Dual Computers
We have one old computer running basic slides and
a second machine that is high powered to handle
slides and video. We switch the signal to the old
machine when we are updating the current slides.
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Computer Video Output
In order to get a TV signal from your computer,
you must either have a special video card with a
TV out option, or you must use a Computer-to-TV
converter as shown here.
Important note When playing a video clip or DVD
on a computer, it might not show up on both the
computer screen and TV. You might have to check
the settings for the video card and make the TV
the primary display in order to distribute in
through the cable system.
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Channel 19
The PowerPoint Presentation runs constantly and
is visible throughout the school on Channel 19.
Normally there would be no sound. Teachers often
just leave it on in their classrooms.
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Daily Routine

• Secretary adds announcements to our website
• When we are ready to edit the slides, we switch
  the signal to the old computer.
• We check the website around 100 and add slides
  to PowerPoint along with any other information
  like menus to the presentation on the new
  computer.
• When editing is complete, we switch the signal
  back to the new computer.

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PowerPoint Notes

• Can use animated graphics
• Can do slide transitions and object animation
• We set all slides to advance automatically after
  7 seconds (in slide transition menu)
• Loop continuously until Esc in the Slide
  Show-Set up show menu
• Can imbed video

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Other Uses

• Multimedia Class produces news program
• Information slideshows during events like the
  State Speech Tournament and parent nights
• Videos produced by classes or organizations
• Live video feed from somewhere in building

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Some Examples