Introduction

Due to the evolving enrollment for this course, we will try to create simultaneous Class Days and Hands-on Lab Days.  The Hands-on Lab Days will be led by an advanced production student in Telecommunication Studies.  S/he will demonstrate and allow you to experiment with the key technologies used in our field.

Nominally, half of our number will be assigned to Class on Monday and to Hands-on on Wednesday.  The other half of the class will be assigned to Hands-on on Monday and to Class on Wednesday.   If schedules permit, you will be able to stay in the lab setting during the 3-4PM hour, too.  And, you may ask our TV engineer, Ryan Donchess, if you could come in for extra studio time on Tuesdays and Thursdays.  Particulars will be worked out and posted.   Be sure to sign in for class and lab, if a form is provided..

These "Links" are divided into three sections, and each section will correspond to 1/3 of the course.  When you click on a URL, you will be taken to a video, or an audio file, or to a written essay, or to a complete web which you should explore.

Look for key information in each.  For most, this will be obvious.  Your challenge will be to scan these sites and to pick out the important materials.  You should use good judgment to decide what's relevant to the study of Telecommunications:  How a microphone works, for example, is vital, while how a cell phone base station coordinates with other base stations ... is not.

Some links take you to off-campus servers/sites.  Owners might move the files or remove them from public access at any time.

Rule #1: you are responsible for documents within a website's linked directory, but not for documents you can link to from that directory.  So, if you went to "CB radio antenna" on Howstuffworks.com, you'd be responsible for only one page.  If you went to "Amplifiers" on the same site, you'd find a Table of Contents with 4 pages of tutorial, plus a page of links and a page of advertising.  You'd be responsible for the 4 pages of tutorial.

Rule #2: If you're not confident of your understanding, ask.  Others probably are in the same boat.

Rule #3: Do not print the web documents !  As you study each, make some notes so you understand the basic ideas and so you later can find your way around.  Then, to prepare for tests, study your notes.  The real secret is to have good note-taking skills.

Rule #4:  You won't be hounded to learn about telecom technologies.  If you are a mature, self-energized student, you'll do fine.  If you are a weak student, or if you have trouble staying on task, realize it and take steps

How Video Works (Safari Books)  (Ch 1-5, 5-11, 13, 16-18)

What physical principles are at the bottom of these media technologies?

+What are sound and light?  These are the components of nature which we deal with in radio and TV.  What is electricity?  (An electrical signal?)  We create an electrical "mirror image" of sound (for radio) and light (for TV) + How does magnetism create electricity in a wire?  How does electricity in a wire create magnetism in space?   +  How is it that electrical pulses in a wire can cause magnetic waves to radiate off into space?   +  Who were the people who first figured out these principles?  When and how?

What's an audio mixer?  How does it work?

What devices are used upstream?  Microphones, CD's, VTR's, feeds, tape machines, computers, etc.  + What devices are used downstream?  VU meter, equalizer, monitor, limiter, recorder, transmitter   + What ancillary technology is used in radio/audio?  + How is an audio system used in TV?

What's a TV switcher?  How does it work?

What devices are used upstream?  Cameras, servers, VTRs, network feeds, CG's, etc.  + What devices are used downstream?   Waveform monitor, vectorscope, recorder, transmitter.   + What support systems are used in TV?  Lighting, teleprompter, intercom, IFB.

What do we mean by "digital"?

Take samples of the signal at a really high rate.  Assign a binary value to each sample's value.  + Send/receive those values as clusters of pulses  + CD's, DVD's, DAT, computers, MiniDV, DVCPro (etc.) are already digital. + Most new audio mixers and video switchers are digital.   + Home TVs and car radios are analog.  So radio/TV stations broadcast old-time analog signals  + But not for long!!   + Of course, you can already receive audio/radio and video/TV via the internet.

Some items are necessary for you to have personally as you take classes in Telecommunications or to participate in our production activities.  Link to the list.

Ryan Alessio is a sports reporter and show host at WBBW-1240.  Here's a short "day in the life" video featuring his personal routine and the radio studios.  Here's another similar video.

To prepare you for working in our TV studios, here's a PowerPoint presentation about the various technology systems you'll encounter.  Of particular note are the award winning graphics.

Go to the NEP Studios web site.  Look at the dropdown menu across the top.  Drop down each and explore.  NEP provides studios and production trucks for the planet's biggest events.  Top quality.  Top people. 

Here are some studio terms which you should remember from our lab and classroom discussion of core technologies.  Be sure to ask about them in Hands-on Lab !

Control room

"Voice of god" PA Bug Hollywood flat Prompter display Lavalier mic
Production control Graphics computer Sound lock doors Broadway flat Headset Hand mic
Master control Tricaster switcher Green room Chromakey wall Floor director Directional mic
Monitor wall Server Hard set Chromakey blue or green Production assistant Omnidirectional
Program monitor Air monitor Soft set White balance Producer Lower third super
Preview monitor 3-Play Key light Muting relay Director Take/dissolve
Audio booth Garage Band Back light Floor monitor Line producer  
Audio mixer Audacity Fill light Craft services Field producer  
Control console (desk) Announce booth Microphone snake Teleprompter Script  
Director console Cameras 1-3 I-F-B Prompter control House sync  
These are short explanations of basic topics.  Technologies are based on these principles, so you need to understand them. 
Sound/acoustics PDF document about sound
Faraday's Induction PDF document about induction
Induction (a video) This video demonstrates how a moving coil in a magnetic field creates electricity - as does a microphone
Sound/Signal/Sound PDF document about signals
Loudness and pitch PDF document about how frequency and amplitude relate
Charting sound waves How to graph waves in x/y space
Signal An electrical counterpart
Signal-to-noise A key ratio
Amplify To increase signal strength
Modulate To add one signal to another
Video keying The method we use to create chromakey, blue screen, and "supers."

Here you'll find five lessons about soundStudy them closely.  The graphics and animations are excellent.   Most of what you'll need about sound for this course is on this site.

What's the Electromagnetic Spectrum?  This site from Science explains.

Here's a terrific, short lecture by MIT physics professor Walter Lewin.  Explains how light is waves ... or particles.  A mystery.

And, the Top 10 communication technology trends in 2017 !!

 

-------------------- END OF PART 1, Fall 2017 -------------------

 

------------------- START OF PART 2 OF 3, Fall 2017 --------------------------

          Material for Part 2 will be posted after the first test (which covers Part 1 )