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This Week in Radio Tech - TWiRT Homepage - TWiRT 185 - Mitch Glider - Network Ops and Big Remotes

Most radio engineers look after 1 to 8 program channels; Mitch Glider oversees 67 of them! As VP-E...
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A place to share ideas and articles concerning computers, radio & television broadcast engineering and production
Curated by David Hall
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How IOTs Work – A Tutorial

How IOTs Work – A Tutorial | Broadcast Engineering Notes | Scoop.it
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 […]
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Lightning is No Fun!

Lightning is No Fun! | Broadcast Engineering Notes | Scoop.it
Information and resources for the broadcast engineer and manager.
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Russell Roberts's curator insight, November 23, 6:50 PM

Thanks to reporter David Hall for this sobering report of what lightning can do.  In this case, a lightning strike destroyed equipment belonging to KREJ/KSNS of Medicine Lodge, Kansas.  Chief Engineer Randy Henry provided the striking photos.  Think what a lightning strike would do to your amateur radio station.  Take precautionary steps now, especially if you live in states where thunderstorms occur regularly.  Aloha de Russ (KH6JRM).

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FCC Delays Net Neutrality Rules Until 2015 - US News

FCC Delays Net Neutrality Rules Until 2015 - US News | Broadcast Engineering Notes | Scoop.it
A vote next year could give telecoms time to pressure the commission on the proposal.
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Russell Roberts's curator insight, November 22, 11:51 PM

The FCC will postpone its net neutrality rules and regulations until 2015.  According to www.usnews.com, this puts FCC Chairman Tom Wheeler in a squeeze between Internet providers and the wishes of President Obama on how the agency can best  guarantee all web traffic is treated equally.  Comments on the proposed rules totaled nearly 4 million.  The report says, "Delaying the vote on revisions t the proposed rules...could give providers...more time to pressure Wheeler to draft rules that would favor their business."  I'm not optimistic about the net neutrality issue.  With few exceptions these days, decisions usually follow the money and power trail.  And Internet providers have plenty of power and influence, especially where elections are at stake.  I hope I'm wrong.  Aloha de Russ (KH6JRM).

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Have an HDTV? Use this neat trick to unlock better picture quality

Have an HDTV? Use this neat trick to unlock better picture quality | Broadcast Engineering Notes | Scoop.it
Want to get the best picture out of your HDTV? This free calibration disc will do the job....
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Russell Roberts's curator insight, November 20, 11:37 PM

According to computer guru and radio talk show host Kim Komando, you don't have to pay big bucks to get your new HDTV performing to its peak potential. Komando says all you have to do is download a free calibration program from AVS and make a calibration disc from your Blu-Ray or Xbox 360 system.  Kim provides a lenk for the download.  Happy viewing!  Aloha de Russ (KH6JRM).

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The Broadcasters' Desktop Resource

The Broadcasters' Desktop Resource | Broadcast Engineering Notes | Scoop.it
Information and resources for the broadcast engineer and manager.
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Russell Roberts's curator insight, November 15, 7:24 PM
Thanks to reporter David Hill for citing this source. Although the BDR is primarily for broadcast engineers and technicians, there plenty of topics that would interest amateur radio operators and radio enthusiasts. This week, the BDR discusses lightning problems (short and long term), the torching of Arizona radio KJIK, President Obama enters the net neutrality debate, power outages and STLs, the great frequency shift of 1928, and the spread of ransomware (i.e. cryptowall) to five states. Aloha de Russ (KH6JRM).
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FCC commissioner predicts battle over Obama proposal

FCC commissioner predicts battle over Obama proposal | Broadcast Engineering Notes | Scoop.it
GOP Commissioner Ajit Pai predicts a heated battle between the FCC and Congress.
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Russell Roberts's curator insight, November 15, 7:47 PM
Thanks to reporter David Hall for this net neutrality update. Ever since President Obama got involved in the net neutrality issue, the tempo of rhetoric has increased. Caught in the middle is the FCC which must devise a plan to satisfy consumer demand for equal service with large companies and the increasing demand for more bandwidth from companies such as Netflix. In effect, the FCC is being asked to strike a balance between a speedy internet requiring higher fees and equal access and speed for all consumers. There is only a limited amount of spectrum available. If the issue cannot be resolved, services, including amateur radio, may lose their allocations in parts of the VHF and UHF bands to satisfy broadband requirements of new commercial services. Amateur radio operators should be alert for any move to "refarm" amateur-radio shared frequencies. Aloha de Russ (KH6JRM).
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CEA Announces 4K Ultra HD Initiatives

   

The Consumer Electronics Association (CEA) and Digital Entertainment Group (DEG) are teaming to promote the latest Ultra-HD Blu-ray Disc releases and emerging home entertainment technologies to consumers.


Why This Matters: The two organizations are collaborating to develop “The DEN (Digital Entertainment News) Presents Ben Lyons,” a year-long series of tours highlighting the most recent movie and television releases for home viewing and the best ways to purchase and watch them.

 

 

 

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TVTechnology: ONE Media Reports Successful Demo of Next-Gen Transmission Platform

TVTechnology: ONE Media Reports Successful Demo of Next-Gen Transmission Platform | Broadcast Engineering Notes | Scoop.it
TVTechnology In the first complete system test of its Next Generation Broadcast Platform, ONE Media announced today succesful results in transmitting fixed, mobile and data services to set-top and tablet devices.
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Russell Roberts's curator insight, November 14, 9:27 PM

Thanks to reporter David Hall for this intriguing article on the "Next Generation Broadcast Platform."  According to ONE media, its researchers have transmitted fixed, mobile, and data services to set-tops and tablet devices.  This technology would enable a tv station to serve a multiplicity of users.  Of course, this new platform will require additional spectrum.  And guess where that new spectrum will be found?  Yep, in the Upper VHF and UHF bands, some of which are used by the Amateur Radio service.  If weren't not careful, commercial interests will try to  acquire these frequencies at the expense of other services, including Amateur Radion.  Be careful what you wish for.  Aloha de Russ (KH6JRM).

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SBE Offers New Perspectives Course

SBE Offers New Perspectives Course | Broadcast Engineering Notes | Scoop.it
Aims to improve communication between broadcast engineers and IT
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Russell Roberts's curator insight, November 14, 9:44 PM

Thanks to reporter David Hall for this interesting course. You don't have to be a broadcast engineer to appreciate "the dynamic tension that can exist between" these departments. Both are vital parts of a broadcasting system.  The course is non-technical and investigates the general characteristics of each job and how these skilled professionals should work together. Even if you're not a broadcast engineer or IT specialist, there are many topics in this course that could apply to Amateur Radio.  There is a fee for taking the course.  For details, visit http://www.sbe.org/sections/PerspectivesIIIBroadcastEngineersandIT.php.  Aloha de Russ (KH6JRM).

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President Obama Calls for Title II Reclassification to Protect Net Neutrality

 

  

President Barack Obama chimed in on the Net Neutrality debateon Monday with a lengthy statement pressuring the FCC to reclassify ISPs under Title II regulations, while at the same time abstaining from imposing rate regulation "and other provisions less relevant to broadband services.”


Why This Matters: “There is no higher calling than protecting an open, accessible and free Internet,” said Obama. The FCC is an independent agency, but the President made his stance clear. Shares of major ISPs fell in light of the news.

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Russell Roberts's curator insight, November 10, 11:22 PM

Thanks to reporter David Hall for this summary of the net neutrality issue.  President Obama has weighed in on the issue, asking the FCC to guarantee "an open, accessible and free internet."  Major ISPs prefer a two-tier approach, with customers paying higher fees for speedier internet connections.  The debate is far from over.  Aloha de Russ (KH6JRM).

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Various Innovative Uses of Podcast Transcription!

HiTechTranscriptionServices.Com -The transcription of the podcast is very much similar to sound recording to text conversion, with a small tress. The sole purp…
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TVTechnology: Aereo Files for Bankruptcy

TVTechnology: Aereo Files for Bankruptcy | Broadcast Engineering Notes | Scoop.it
TVTechnology The company was litigated into the ground for reselling TV station signals to subscribers without securing contractual agreements.
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How to Manage Files and Use the File System on Android

How to Manage Files and Use the File System on Android | Broadcast Engineering Notes | Scoop.it
Android’s user-visible file system is one of its advantages over iOS. This allows you to more easily work with files, opening them in any app of your choice. But Android doesn’t include a file manager app by default.
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The Broadcasters' Desktop Resource

The Broadcasters' Desktop Resource | Broadcast Engineering Notes | Scoop.it
Information and resources for the broadcast engineer and manager.
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Russell Roberts's curator insight, November 21, 11:53 PM

Although the Broadcasters' Desktop Reference is aimed toward those in the broadcast field, there are many articles that will apply to amateur radio operators. This edition of the BDR has articles on feeding clean air to your transmitter, Washington State radio stations disabled because of vandalism, how a power outage can destroy an STL, what you need to know about retirement, ensuring that your data are safe, and how to deal with Ransomware and other malware problems.  Aloha de Russ (KH6JRM).

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tower videography

1500´ TV Tower
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Russell Roberts's curator insight, November 19, 12:50 AM

Thanks to reporter David Hall for this article.  According to the man who climbs this tower, the total length of the tower with TV antenna attached is 1,570 feet/478.65 meters.  I gave up climbing towers years ago.  No sense pressing my luck.  Wouldn't you love to have a tower like this with a 4-element 20 meter beam on top? DX made to order.  Aloha de Russ (KH6JRM).

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A New TV Sound System for the Hard of Hearing > ENGINEERING.com

A New TV Sound System for the Hard of Hearing > ENGINEERING.com | Broadcast Engineering Notes | Scoop.it
Research at U. Southampton have developed a loudspeaker system to help those with hearing problem listen to TV without affecting others.
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Russell Roberts's curator insight, November 15, 7:36 PM
Marcos Simon, PhD, a researcher at the University of Southampton has developed a loudspeaker system to help people with hearing loss listen to TV with out affecting the sound volume of other viewers. Simon uses a highly directional system of acoustical radiators (phased speakers), which produces a "hot spot" for the hard of hearing without disturbing others listening to the tv program. This development could bring peace to many families. Many ageing senior citizens have hearing impairments that could respond to this new technology. Aloha de Russ (KH6JRM).
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TVTechnology: Creatives and Manufacturers Experiment With High Dynamic Range

TVTechnology As stakeholders and standards organizations continue developing the “next big thing” designed to expand visual storytelling and sell new display technology, the discussions have focused mostly on resolution—spatial resolution, as in 4K, 8K and beyond, or temporal resolution as in high frame rate.
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Rigol DS1000Z & DS2000 Oscilloscope Jitter Problems

Dave investigates two very serious issues with jitter on the Rigol DS1000Z series oscilloscopes, including the DS1104Z and new DS1054Z Some sort of modulated...
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Russell Roberts's curator insight, November 15, 7:55 PM
Thanks to David Hall for this video on problems with the Rigol DS1000Z series of oscilloscopes, including models DS1104Z and the more recent DS1054Z oscilloscope. The jitter problem has also been reported on the DS2000 series of Rigol oscilloscopes. Apparently, some Rigol oscilloscope models show a severe jitter problem on the AC coupled trigger mode. Reporter David Hall examines the issue and makes some useful suggestions to work around this problem. Aloha de Russ (KH6JRM).
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This Week in Radio History


November 10, 1992
First AM HD Radio broadcast with audio codec

November 13, 1906
de Forest patents Audion tube

November 13, 1975
SBE adopts Certification Program

November 14, 1911
Ernst Alexanderson granted US patent for the high-frequency alternator, a 100kHz mechanical alternator

November 14, 1994
FCC adopts EAS rules

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Russell Roberts's curator insight, November 14, 9:15 PM

Thanks to reporter David Hall for this step back into radio's interesting past.  Especially noteworthy is the work of Ernst Alexanderson, who built a huge long wave station in Sweden around 1922 or 1923.  The station operated on 17.2 kHz.  Once a year, volunteers put Alexanderson's "alternator" station on the air.  I've heard sound files of this signal, and it's not bad for the technology of the time.  Aloha de Russ (KH6JRM).

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FCC Seeks Answers In Unauthorized EAS Warning

FCC Seeks Answers In Unauthorized EAS Warning | Broadcast Engineering Notes | Scoop.it
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Russell Roberts's curator insight, November 11, 6:05 PM

Following the unauthorized triggering of The Emergency Alert System on 24 October 2014, the FCC issued an advisory for all broadcast and cable stations to check all their equipment for proper settings and alignments.  This "accident" could happen again if equipment is not properly adjusted. The FCC has also begun an investigation into how the illegal broadcast happened.  The FCC is also seeking comment on "EAS best security practices implementation."  Aloha de Russ (KH6JRM).

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TVTechnology: The FCC’s DTV Interference Dilemma

TVTechnology: The FCC’s DTV Interference Dilemma | Broadcast Engineering Notes | Scoop.it
TVTechnology By now almost everyone knows the NAB has filed a lawsuit against the FCC over its spectrum auctions TV channel repack.
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Russell Roberts's curator insight, November 10, 11:36 PM

Thanks to reporter David Hall for this report by consultant Charles Rhodes.  Rhodes feels that the FCC hasn't considered the consequences of "repacking" television signals into the UHF bands, where several types of interference can ruin reception, and desensitize tv receivers.  Among the problems cited was Frequency Modulation Interference by strong FM broadcast stations, whose harmonics fall within some of the UHF spectrum assigned to television stations. However, one comment on the article said, "If the interference does not affect the cable or satellite operators, you are not likely to see the commission caring about the issue."