Power Transformer – Testing Procedures | EEP


This spreadsheet is instruction necessary for testing of power transformer: Insulation and Winding Resistance Measurement, Magnetic Current Test

Source: electrical-engineering-portal.com

Thanks to reporter David Hall for this useful guide to testing procedures for power transformers.  The article is basically an Excel Spreadsheet that “is actually a detailed instruction for each procedure necessary for correct testing of a power transformer.”  You can download the graphics and text from the article or by visiting http://electrical-engineering-portal.com.  An excellent reference document.  Aloha de Russ (KH6JRM).

See on Scoop.itKH6JRM’s Amateur Radio Blog

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EEVblog #652 – Oscilloscope & Function Generator Measurement Trap – YouTube


Dave explains a big trap in high frequency measurement with your oscilloscope. Based on a viewer request, Dave demonstrates how to incorrectly and then corre…

Source: www.youtube.com

Thanks to reporter David Hall for this informative tutorial on the “Oscilloscope & Function Generator Trap.”  Dave shows you the correct way to measure the signal output level over frequency of your function generator using your oscilloscope.  This nearly 25 minute video is full of useful tips for both broadcast engineers and amateur radio operators.  Excellent video.  Aloha de Russ (KH6JRM).

See on Scoop.itKH6JRM’s Amateur Radio Blog

TVTechnology: A Look Back at Broadcast Engineering Magazine


TVTechnology Broadcast Engineering magazine was a long-time favorite of mine, with articles that challenged me to learn more about video technology, and advertising that was often as educational as the articles.

Source: www.tvtechnology.com Thanks to reporter David Hall for this fascinating look back at the early years of television technology.  “TVTechnology Broadcast Engineering” magazine was one of the better known publications addressing video issues associated with television.  David said the magazine was a favorite of his because the “articles…challenged me to learn more about video technology and advertising that was often as educational as the articles.”  Television certainly has come a long way over the past five decades.  Aloha de Russ (KH6JRM). See on Scoop.itKH6JRM’s Amateur Radio Blog

Radio World: Five Questions: Cris Alexander


Radio World TechBytes talks to Cris Alexander about broadcast engineering’s future and its challenges

Source: www.radioworld.com

Thanks to reporter David Hall for sending me to this story.  As a former broadcast technician and news director for Pacific Radio Group (Hawaii Island), the challenges outlined by Cris Alexander, the director of engineering for Crawford Broadcasting Company, certainly ring true.  According to Alexander, these are some of the challenges broadcast engineers are now facing:

1.  The integration of the personal computer into the broadcast infrastructure.

2.  Finding qualified personnel in the RF field.

3.  The disappearance of “Legacy Technologies” and the full integration of computer and IT into the broadcast plant.

4.  Finding competent and available tower contractors.

5.  Keeping employees current in terms of training and technologies.

6.  Becoming more professional in dress, speech, and communications skills.

 

When I first started working in commercial and university radio back in 1967, I was fortunate to have experienced, licensed engineers (remember the 1st phone license from the FCC?) guide me in the art of maintaining a commercial and nonprofit radio station.  Some of my engineering mentors were amateur radio operators and proved valuable later on when I needed help in getting my novice amateur radio license.  These early mentors in my commercial and amateur radio “careers” emphasized the need for continuous training, updated equipment, and basic electronics skills.   Aloha de Russ (KH6JRM).

 

 

 

See on Scoop.itKH6JRM’s Amateur Radio Blog

Smartphones Are Replacing TVs


See on Scoop.itKH6JRM’s Amateur Radio Blog

Television apps explode.

Russ Roberts‘s insight:

Thanks to reporter David Hall for this fascinating story.  According to the Adobe Digital Index, there’s been “a 246 percent increase in viewing so- called TV Everywhere apps, which allows users to stream shows from certified broadcast networks.  TV Everywhere apps also are  outpacing the growth of many online video sources, such as Hulu and You Tube.”  Once the controversial Aereo system becomes integrated into the mix, broadcast executives may have a new worry to contemplate–falling revenues.  That’s one reason why the TV Freedom group is appealing to Congress to put more  controls over cable and satellite networks.  The U.S. Supreme Court will decide the fate of cloud-based broadcaster Aereo later this month.  Aloha de Russ (KH6JRM).

See on www.thedailybeast.com

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