When: Wednesday, August 13, 2014
Where: Zarda BBQ; 11931 W 87th St.; Lenexa, KS 913-492-2330
Gather at 11:30 a.m., lunch at 11:45, meeting at noon.
DTV Transmitter Performance. Perry Priestley of Anywave Communications Technologies will present a program on several new techniques intended to improve the operating efficiency and performance of digital TV broadcast transmitters. There is high interest among broadcasters to “go green”, and at the same time reduce operating costs. The intended benefits of an improved efficiency transmitter are clear: reduction in system size and floor space requirement, lower capital cost, reducing cooling requirements, improved reliability and reduction of carbon footprint in support of go-green initiatives. This presentation defines power amplifiers and transmitter efficiency, explains linearity, MER/SNR improvements, Crest Factor Reduction techniques and then goes onto explain new developments in modulation and correction algorithms within an exciter and then goes on to explain the options for new RF amplifier design. The conclusion discusses the expected results and compares the cost trade-offs of complexity, capital expenditure and operating expenditure. Included in this presentation is a “live” demonstration of correction techniques of an ANYWAVE exciter.
Perry Priestley has worked in the professional broadcast industry for nearly 40 years. Perry currently is the CEO for Anywave, North America. Most recently Perry worked for Comark, and Linear Industries as Vice President of Sales and previously has held positions with iBiquity, Thales, Marconi, Varian and Philips. Perry has presented at over 30 different technical conferences worldwide.
Lunch will be provided by Anywave Communication Technologies. When you arrive at Zarda proceed directly to the back room for lunch and the meeting.
Future Meeting Programs:
September 10: Broadcast Remotes w/ Jim Cambron
October 8: A.L. Huber - Wind & Solar Facility Tour
At the May, 2014, monthly chapter meeting a new piece of legislation in the neighboring state of Oklahoma related to broadcasters and emergency situations was discussed.
The final version of the act can viewed on-line here:
Further research showed that a similar bill was being considered this year in Missouri:
The Missouri House Bill 1582 “First Informer Broadcasters Act” will have to be taken up this fall as the Missouri Legislature ended its session on Friday, May 16th (2014). The bill “establishes certification (for) radio and television broadcasters under the "First Informer Broadcasters Act" in order to prepare for and respond appropriately to an emergency or disaster.”
At the October, 2013, SBE meeting Kirk Chestnut mentioned a local organization that is involved in promoting science, mentoring, and hosts a city-wide science fair that is in need of judges/volunteers. Here is a link to their website:
Here is a link to the volunteer sign-up page:
At the monthly meeting on October 9, 2013, chapter member John Gray gave a presentation on quantum physics and the double slit experiement. Below are links to some YouTube videos on the topic presented by Richard Feynman.
Presentation from 1964 (worth it just to watch the intro):
Four part Feynman lecture from 1965 (each is a little over an hour long):
Part 1: http://youtu.be/eLQ2atfqk2c
Part 2: http://youtu.be/kMSgE62S6oo
Part 3: http://youtu.be/jNNXD7fuE5E
Part 4: http://youtu.be/UigjOJm6F9o
At our April meeting chapter member Ed Treese brought in an item that was located in engineering storage at 1480.
It is made of rubber and has a small weep hole. So - what is it?
Chriss Scherer, CPBE CBNT, editor of Radio magazine, past president of the Society of Broadcast Engineers (SBE), and local SBE chapter 59 member paid tribute to the founder of the SBE and former technical editor of Radio magazine, John Battison (1915-2012), during the SBE's Awards Banquet at the 2012 National Meeting on Oct. 24, 2012.
At the meeting on Thursday, March 8, 2012, Greg Best presented a program titled "Spectrum Analyzer 102+".
During his presentation Greg referenced the book "Fundamentals Of Spectrum Analysis". A PDF version of this book can be found on-line and is available for free download here: http://www.ictregulationtoolkit.org/en/Publication.3588.html
Chapter member Kit Peters presented a discussion on the basics of IP and best practices for security IP-based devices at the meeting on April 21, 2011. The slides from that presentation can be found online here:
At the meeting on January 13, 2011, Bruce Roberson of Digital Alert Systems presented a program on CAP and EAS. He has generously provided the slides from that presentation.
Download Here (~11 MB): EAS Presentation_SBE59_Jan2011.pdf
Additional EAS info provided by Digital Altert Systems:
The latest news from Digital Alter Systems can be found here.
At the meeting on Thursday, December 9, 2010, Greg Best presented a program titled "Spectrum Analyzer 101+". Here are links to some of the information presented:
Links to Reference Material:
App Note 63 for Fundamentals
App Note 134 for Intermediate Subjects
App Note 1298 for Advanced Topics-Digital Communications
App Note 1303 for Advanced Topics-Noise-Like Signals
App Note 1316 for Advanced Topics-Amplitude Accuracy
These links refer to items on this web page: http://www.hpmemory.org/ressources/resrc_an_01.htm