 |
|
 |
|
|
||||||||||||||||||
|
|
|
Broadcast Engineering
Video Tutorials
Once a communications satellite has been constructed the next phase is to get it into space and have it stay there. This tutorial will show you how that is accomplished. From take off to Geostationary orbit and then how is keeps it's antennas pointed at the correct spot on the Earth. You will see how the satellite is controlled and kept from running into it's neighbors in space. .
Running Time = 07:25
Everyday people around the world watch and listen to shows that are transported via satellite. This tutorial will show you what goes into constructing a modern communication's satellite. Besides being communications platform the satellite is also a space craft capable of maintaining a Geostationary orbit despite being pulled and pushed by the Sun, Moon and the Solar Wind.
Running Time = 05:52
In this tutorial we show you the different ways in which RF power is measured in todays transmitter facilites. Measuring RF power accurately is very important to maintaining a transmitter and complying with FCC rules. Knowing how to use and the different methods as well as their limitations and advantages is something every broadcast engineer should know
Running Time = 14:25
This video covers the different types of professional microphones used todays and how they work. Through the uses of some clever animation we show you how Dynamic, Condenser, Ribbon microphones work to turn the mechanical vibrations of sound waves into it's representation in electrical voltage
Running Time = 08:47
When a transmitter will not stay on the air it's up to the transmitter engineer to find out why. Sometimes is a simple matter and others it can involve the most expensive part of the transmitter, the IOT. In this video you can follow along with the engineer as he repairs an IOT that is experiencing arcing in it's Input Cavity
Running Time = 03:04
Mac Book Pro Hard Disk Upgrade - As with many computer users I found that I had out grown the size of the hard disk that came with my laptop and decided to replace it. In this video you will see all the steps I took to disassemble my Apple Mac Book Pro laptop and replace the internal hard drive with a new, larger one. The operation was a success and my Mac Book Pro is working fine.
Running Time = 08:09
This video shows you what you will need inorder to solder flanges onto transmission line. From propane to solder and flux as well as cutting tools are shown here
Running Time = 10:04
Before any transmission line is run a plan must be made and this video shows you how . From lengths to getting through walls an engineer needs to know what they are up against before cutting any line. Two different real world examples are shown, one simple and the other one more complex. .
Running Time = 06:42
In this video you can see all the steps it takes to properly attach a flange to a rigid coaxial transmission line. A professional installer is shown making a transmission line section for a new transmitter installation. From preparing and cutting the transmission line to deburring it and then cleaning the line in preparation for soldering. We then see how the soldering is accomplished and the final cleaning
Running Time = 18:53
In this demonstration two Transport Stream over IP units from DecTek are used to show just how TSoIP works. Although not widely used in broadcast TSoIP will find more and more uses as we move into the future. In short an ASI Transport Stream is encapsulated within IP packets allowing the ASI TS to travel over an IP network along with other IP traffic
Running Time = 09:24
This tutorial takes you along with the transmitter engineer as he attempts to trouble shoot a mysterious transmitter problem that takes his station off the air. You follow along as he tries to understand why his transmitter has developed a VSWR (reflected power) fault and then does find the culprit only to discover that the problem lies elsewhere
Running Time = 06:41
This video covers the questions of what is IP and where is it used? IP has found it's way into almost every aspect of modern life and broadcasting is no different. From Mobile TV to HD Radio, IP networks and the data that flows over them has entered every phase of broadcasting. This tutorial explains IP data and networks from the broadcast engineer perspective to show you where IP is used and ....
Running Time = 08:02
IP is used everywhere and understand the structure of the IP Packet is very importan today. This tutorial takes you inside the IP packet describing the various parts, flags, IDs and controls contained within. After watching this tutorial you will have a greater understanding of the structure of IP. After viewing this you should also watch Part II, TCP to understand the second half of the IP Packet
Running Time = 07:48
This is Part One of a seminar giving by Richard Schwarts from Axcera Corporation you will be introduced to DTS or Distributed Transmission Networks which are used to extend the coverage of broadcast television stations by using smaller transmitters to fill in areas where coverage from the main transmitter is blocked by terrain. The transmitters are all locked together using a method that ...
Running Time = 12:31
This is Part Two of a seminar giving by Richard Schwarts from Axcera Corporation you will be introduced to DTS or Distributed Transmission Networks which are used to extend the coverage of broadcast television stations by using smaller transmitters to fill in areas where coverage from the main transmitter is blocked by terrain. The transmitters are all locked together using a method that ...
Running Time = 12:58
This is Part Three of a seminar giving by Richard Schwarts from Axcera Corporation you will be introduced to DTS or Distributed Transmission Networks which are used to extend the coverage of broadcast television stations by using smaller transmitters to fill in areas where coverage from the main transmitter is blocked by terrain. The transmitters are all locked together using a method ...
Running Time = 12:51
This is Part Three of a seminar giving by Richard Schwarts from Axcera Corporation you will be introduced to DTS or Distributed Transmission Networks which are used to extend the coverage of broadcast television stations by using smaller transmitters to fill in areas where coverage from the main transmitter is blocked by terrain. The transmitters are all locked together using a method ...
Running Time = 12:55
This tutorial takes you through a description of what it is and why it's used in professional audio. WIth it's ability to reject hum and noise balanced audio is used through out in live performances as well as studio settings. The use of transformers as well as active devices for both input and output is covered in this tutorial.The design of the twisted pair shielded cable is explained
Running Time = 07:04
In Trouble at the Transmitter you will follow along with our intrepid engineer as he responds to a late night call informing him his transmitter has gone off the air. As the systems within the transmitter inform him of what the problem is he soon discovers that the real problem lies somewhere else
Running Time = 10:12
This video was inspired by a reader who asked how the video signal got from the camera to the transmitter and on the air. They asked me for help and I realized that no one had explained how the the signal flow worked. And so this video tutorial was born. It takes you from a camera output through DAs and patch bays and routers to the output of the master control switcher and on to the microwave STL
Running Time = 14:29
In this two part tutorial the viewer is taken along as one television station has to upgrade it's aging UHF transmitter and replace it with a new one as well as adding a digital transmitter. From the demolition of part of the orignal transmitter and keeping it on the air as the new one is installed the viewer gets an idea of how much work goes into replacing a transmitter
Running Time = 04:58
This is Part Two where the viewer is taken along as one television station has to upgrade it's aging UHF transmitter and replace it with a new one as well as adding a digital transmitter. From the demolition of part of the orignal transmitter and keeping it on the air as the new one is installed the viewer gets an idea of how much work goes into replacing a transmitter
Running Time = 05:38
This introduction to analog sync covers all aspects of horizontal, vertical and color sync. This video show you all the components that go into Composite Sync and how they work together to form a picture on your screen
Running Time = 04:25
Horizontal Sync is the basis for all analog video which despite the proliferation of digital video is still the most widely used video format in the world. The better one understands Horizontal Sync the easier it is to diagnose and trace down problems in an analog plant or system. And remember, analog sync is still the only sync source for almost all digital systems in use today
Running Time = 04:54
Vertical Sync as part of composite sync is the basis for all analog video which despite the proliferation of digital video is still the most widely used video format in the world. The better one understands Vertical Sync the easier it is to diagnose and trace down problems in an analog plant or system. And remember, analog sync is still the only sync souse for almost all digital systems in use today
Running Time = 04:59
Subcarrier or Color Sync is part of composite sync, normally called color burst or just burst. It is responsible for keeping the color circuits in television sets and other equipment synchronized with the originating source. Without Color Sync the color information within a composite video signal would be unlocked and the wrong colors would be displayed on our screens
Running Time = 06:12
In this two part tutorial the viewer is taken on a tour of a modern UHF full power transmitter. In this example an IOT or Induction Output Tube is used for the final stage of amplification and all the support circuits and systems are covered. The encoding system as well as the exciter is also covered. The RF output is covered from tube output to filters, switches and the trip up to the top of the tower to the antenna
Running Time = 12:59
Ground Loops cause hum and distortion to audio and video signals every day. How Ground Loops are generated and the distortions they cause are covered in this tutorial as well as how to eliminate them. Several examples are shown using a typical audio mixer and amplifier
Running Time = 09:58
In this tutorial the subject of how audio is picked up at the mic and carried through the audio mixer from the input circuits to the stereo buss and out to the amplifiers and the speakers is covered. This is an overview of how profissional audio devices are connected and operate without going into circuit description
Running Time = 06:30
Here in this two part video you will see a presentation by Skip Erickson from Harris Corporation where he talkes about what it took to put WREX back on the air after their studio and transmitter burned to the ground. He talks about and shows you the lessons learned from this experience
Running Time = 15:16
Here in part two you will see a presentation by Skip Erickson from Harris Corporation where he talkes about what it took to put WREX back on the air after their studio and transmitter burned to the ground. He talks about and shows you the lessons learned from this experience
Running Time = 17:27
Overview of a Transmitter - In this orignal tutorial the viewer is taken on a tour of a modern UHF full power transmitter. In this example an IOT or Induction Output Tube is used for the final stage of amplification and all the support circuits and systems are covered. The encoding system as well as the exciter is also covered. This video has been superseded by the newer Profile of a Transmitter.
Running Time = 07:43
With the spread of 3-D movies and now 3-D video to the home this tutorial shows how the human brain interpets the depth clues we see every day that don't require two eyes. This clues come in the form of experience we develop over a life time. Such things as one object being hidden behind another or perspective gives us clues as to the distance of objects within our field of vision. .
Running Time = 08:07
When the station's transmitter starts buzzing it's the engineer's job to figure out why. And when it's traced down to the High Voltage Power Supply the game's afoot to find out what's causing it. In an attempt to fix the problem a board from the Analog HVPS is used to replace the one in the buzzing Digital's HVPS. Filled with oil and the potential of 36,000 volts the job calls for caution ...
Running Time = 08:35
After two years TheOnLineEngineer.Org is still going strong. April 2011 marks our second anniversary and over the last 24 months we have produced well over 30 tutorial videos for broadcast engineers around the world. To showcase what we have accomplished in the past two years here is a promotional video.for you to enjoy
Running Time = 02:12
While I was up at the tower the other day one of the engineers there was trying out the Rohde & Schwarz FSH3 TV Analyzer. It's a compact handheld spectrum analyzer that you can order with a ATSC measurement pack.. He was tuning a Harris Sigma UHF Transmitter at the time and was using the FSH3 to tune the IOT. He reported that it worked well and was within his budget to buy one.
Running Time = 04:00
Apps4Eng
TheOLE BLOG
Tutorial Videos
This tutorial discusses what RF is and how it propagates through space. Subjects include Ground Waves, Line of Sight as well as Multipath. This is an introduction to RF. Atmospheric effects on RF are also covered. We show what happens when RF passes through wall made of wood and plaster, concrete and glass. ..
Running Time = 14:43
This tutorial shows you why Crowbars are needed and what they do inside IOT transmitters. Using animation it shows you what happens when an arc occurs in an IOT and the process that takes over to stop it.
Running Time = 6:11
In this video we show you how IOTs, or Inductive Output Tubes operate. We go over electron tube operation and move from there to IOTs. The RF Cavities are covered as well as the Cathode, Heater, Collector and Grid. Some history on the development of the electron tube is also included
Running Time = 11:53