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5.8 GHz CubeSat Politech.1 - Southgate Amateur Radio Club

5.8 GHz CubeSat Politech.1
Southgate Amateur Radio Club
It carries an Earth Observation payload with a Geodetic Camera to take pictures and a directive C-band communications antenna for downloading these images to the ground station.
Russ Roberts's insight:

An ambitious CubeSat project from students at the Universidad Politecnica de Valencia.  This little "bird" should provide a lot of interesting contacts during its short orbital lifetime.  Launch date to be announced.  Aloha de KH6JRM.

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UK CubeSail Ham Radio Satellite | Southgate Amateur Radio News

UK CubeSail Ham Radio Satellite | Southgate Amateur Radio News | KH6JRM's Amateur Radio Blog | Scoop.it
UK CubeSail Ham Radio Satellite.CubeSail is an exciting, ground-breaking educational satellite project at the Surrey Space Centre (SSC) that hopes to launch into a 680 km Sun Synchronous Orbit (SSO) from India...
Russ Roberts's insight:

Watch out for this interesting satellite from the Surrey Space Center in the UK.  The educational satellite will be launched into a low earth  sun synchronous orbit this December from a space facility in India.  A key feature of the "CubeSail" satellite is a 25 square meter sail which will "demonstrate the propulsive effect of solar radiated pressure"  and show "the deorbiting application of the sail as a drag augmentation device."  The satellite will provide beacons for amateur radio operators, most likely using a 9600 Bit/s AX.25 RC-BPSK downlink on 435.240 MHz.  Aloha de Russ (KH6JRM).

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Amateur Radio Electronics V10 Home Study eBook: Clive W. Humphris M0DXJ: Amazon.ca: Kindle Store

Amateur Radio Electronics V10 Home Study eBook: Clive W.
Russ Roberts's insight:

Clive W. Humphris (M0DXJ) continues his popular "Amateur Radio Electronics" home study course with Volume 10 just being published as an eBook on Amazon.com.  His guide is informative, easy to understand, and gives you the basic electronics background you need to pass an Amateur Radio License test in the UK.  For amateur radio operators living in other countries, Clive's book remains a valuable reference tool.  This book is worth adding to your library.  Aloha de Russ (KH6JRM).

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Good 2M Antennas to start on?

Probably the Best Amateur Radio (Ham Radio) Forum in the World. (Amateur Radio: Good 2M Antennas to start on? http://t.co/Clx58MfrqB)
Russ Roberts's insight:

An interesting, informative question from a ham-to-be on the best 2meter antenna to start his amateur radio experience.  The answer from a more experienced  ham is sincere, straight-to-the-point, and helpful.  Aloha de Russ (KH6JRM).

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Centennial Convention Provides Springboard for “Amateur Radio Parity Act,” HR ... - ARRL

Centennial Convention Provides Springboard for “Amateur Radio Parity Act,” HR ... - ARRL | KH6JRM's Amateur Radio Blog | Scoop.it
Centennial Convention Provides Springboard for “Amateur Radio Parity Act,” HR ...
Russ Roberts's insight:

The "Amateur Radio Parity Act of 2014 (HR.4969 got a final send off during closing ceremonies of the ARRL National Centennial Convention in Hartford, Connecticut.  The bi-partisan measure would mandate the FCC to extend the "reasonable accommodation" clause of PRB-1 to private land-use restrictions regarding antennas.  Currently, PRB-1 applies only to state and municipal land-use ordinances.  Aloha de Russ (KH6JRM).

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Today’s space race: Google Lunar X Prize

Today’s space race: Google Lunar X Prize | KH6JRM's Amateur Radio Blog | Scoop.it

Msnbc’s Craig Melvin dives into today’s space competition organized by the X Prize foundation and sponsored by Google. Joined by Astrobotic CEO John Thornton, the pair discusses a $30 million dollar prize awarded to the team that lands a robot safely on the moon, moves 500 meters on, above, or below the Moon’s surface and sends back HDTV Mooncasts for everyone to enjoy.

 


Via Stratocumulus
Russ Roberts's insight:

The commercialization of the moon is definitely on its way.  One of these days, someone will put a repeater on the moon....talk about a huge satellite.  Aloha de Russ (KH6JRM).

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An introduction to HF Software Defined Radio: SDR for Amateur Radio Operators: Andrew Barron ZL3DW: 9781500119935: Amazon.com: Books

An introduction to HF Software Defined Radio: SDR for Amateur Radio Operators

~ Andrew Barron ZL3DW (author) More about this product
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An introduction to HF Software Defined Radio: SDR for Amateur Radio Operators [Andrew Barron ZL3DW] on Amazon.com. *FREE* shipping on qualifying offers.
Russ Roberts's insight:

This looks like a good introduction to the world of SDR (software defined radio).  The paperback by Andrew Barron (ZL3DW) will give new as well as experienced amateur radio operators a fresh look at SDR equipment.  This book can be ordered through Amazon.com.  Aloha de Russ (KH6JRM).

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Rancho Cucamonga ham operator shares gold medal victory - Inland Valley Daily Bulletin

Rancho Cucamonga ham operator shares gold medal victory - Inland Valley Daily Bulletin | KH6JRM's Amateur Radio Blog | Scoop.it
Rancho Cucamonga ham operator shares gold medal victory
Inland Valley Daily Bulletin
Craig, 33, was raised in a ham radio family, earning his license when he was just 8 years old.
Russ Roberts's insight:

A nice personal story of victory at the recent World Radiosport Team Championship 2014.  Dan Craig and Chris Hurlbut of Bozeman, Montana won the Gold Medal at this prestigious event involving amateur radio teams from 38 countries.  Craig (N6MJ) and Hurlbut (KL9A) amassed a score of 7,184,844, leading the 59 competing teams from the start.  The WRTC is held every four years and attracts the best amateur radio operators to compete in 24 hour of intense communications skills.  For a complete run down of the finishers, visit http://www.wrtc2014.org/results. ; Aloha de Russ (KH6JRM).

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Ham Radio Crucial In Disasters, FEMA Chief Says - Hartford Courant

Ham Radio Crucial In Disasters, FEMA Chief Says - Hartford Courant | KH6JRM's Amateur Radio Blog | Scoop.it

tHam Radio Crucial In Disasters, FEMA Chief Says
Hartford Courant
That's why FEMA Administrator Craig Fugate signed a new agreement Friday strengthening its partnership with the Newington-based American Radio Relay League.

Russ Roberts's insight:

According to "The Hartford Courant", FEMA Administrator Craig Fugate signed a new agreement on Friday with ARRL Headquarters. Fugate said the document further strengthens FEMA's relationship with the American Radio Relay League, the largest organization of ham operators in the United States. Fugate stressed that "Ham Radio is indispensable in a disaster...when all else fails, we need to partner with amateur radio...we look at amateur radio as the last line of defense."  The signing was the highlight of the ARRL centennial celebration, which ends Sunday, 20 July 2014.  Aloha de Russ (KH6JRM).

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Amateur Radio Parity Act of 2014 could help homeowners erect antennas

Amateur Radio Parity Act of 2014 could help homeowners erect antennas | KH6JRM's Amateur Radio Blog | Scoop.it
The National Association for Amateur Radio (ARRL) is asking for immediate grassroots support of H.R.
Russ Roberts's insight:

Some more background information on the bipartisan House Resolution known as the "Amateur Radio Parity Act of 2014."  ARRL President Kay Craigie has asked amateur radio operators to support the measure, which could give some relief from restrictive antenna regulation in HOAs and CC & R-controlled housing.  Aloha de Russ (KH6JRM).

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Ham radio 132 km contact at 122 GHz - Southgate Amateur Radio Club

Ham radio 132 km contact at 122 GHz
Southgate Amateur Radio Club
We have started with 24 GHz to align the antennas both sides and have made QSO´s on 47, 76 and 122 GHz.
Russ Roberts's insight:

According to "The Southgate Amateur Radio Club", a team led by Rudi (OE5VRL) has pushed the DX frontiers back a bit on 122 GHz.  Rudi has posted a YouTube video showing the contact over a 132 km path on 19 October 2013.  For more microwave news, you can subscribe to "Scatterpoint", which is published 10 times a year.  For details, visit http://www.microwavers.org.  Aloha de Russ (KH6JRM).

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HOW RADIO WORKS - 1943 - YouTube

The theory and operation of early radio

Via David Hall
Russ Roberts's insight:

Thanks to reporter David Hall for sharing this outstanding, if somewhat dated, tutorial on basic radio.  This video would be nice to show amateur radio license classes--to show them how far radio has come since the mid-point of World War II.  At the very least, this video is worth adding to your library.  Aloha de Russ (KH6JRM).

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David Hall's curator insight, July 18, 4:44 PM
LBA Group, Inc.· 

Wayback Tech - How Radio Worked In 1943!

This video takes us back to the reality of radio during the WWII period. Radio is so pervasive in our lives and businesses today, its fascinating to look back 70 years to the technology and applications when it was new and amazing.

https://www.youtube.com/watch?v=jqGAneO79lY

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How to track a stolen phone or lost phone–Best anti theft security system for Android | Mixedmisc.com

How to track a stolen phone or lost phone–Best anti theft security system for Android | Mixedmisc.com | KH6JRM's Amateur Radio Blog | Scoop.it

Via Prakash Kettavan
Russ Roberts's insight:

A useful tutorial on securing your mobile phone from accidental loss or theft.  This guide is particularly helpful for those using Android enable smart phones.  The guide also gives tips on how to track the phone thief and find your missing cell phone.  Aloha de Russ (KH65JRM).

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Prakash Kettavan's curator insight, July 7, 9:37 AM

How to track a stolen phone or lost phone– Prevent your mobile phone from being theft - An ultimate guide to secure your mobile phone from accidental loss. You can easily identify the thief and phone location with this ultimate guide. Spend some times to save your mobile.

http://www.mixedmisc.com/2014/07/how-to-track-stolen-phone-or-lost-phone.html

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Ham Radio For Dummies - Kindle edition by H. Ward Silver. Professional & Technical Kindle eBooks @ Amazon.com.

Ham Radio For Dummies - Kindle edition by H. Ward Silver. Download it once and read it on your Kindle device, PC, phones or tablets. Use features like bookmarks, note taking and highlighting while reading Ham Radio For Dummies.
Russ Roberts's insight:

This excellent book by H. Ward Silver should be part of your reference library. Now, thanks to Amazon.com, you can download the ebook on your Kindle device, tablet, smart phone, or PC.  I have the print edition. Either way, the book by Silver is quite good and gives you the basics of running an efficient, successful amateur radio station.  Aloha de Russ (KH6JRM).

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Couple Questions about Ham - Page 2 - The RadioReference.com Forums

Couple Questions about Ham - Page 2 - The RadioReference.com Forums | KH6JRM's Amateur Radio Blog | Scoop.it
True, however the Baofang's are not type accepted for MURS.
Russ Roberts's insight:

An interesting, informative forum discussion concerning the use of the popular Baofang HTs for MURS applications.  The advice seems clear:  don't do it. That would be a violation of FCC rules.  Aloha de Russ (KH6JRM).

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Desoto Times Tribune > News > Local > Reaching the world

Desoto Times Tribune > News > Local > Reaching the world | KH6JRM's Amateur Radio Blog | Scoop.it
enter site/page/section description here. (RT @jilly: Reaching the world - Amateur radio vital in disasters http://t.co/IGHzGjhXbk #hamr)
Russ Roberts's insight:

A nice follow up report on last month's ARRL Field Day event from "The Desoto Times Tribune" newspaper.  Reporter Bob Bakken did a pretty good job of covering the Olive Branch Amateur Radio Club's participation in the emergency communications exercise. The highlight of the club's Field Day activity was a contact with astronaut Ken Wiseman (NA1ISS) on board the International Space Station.  Aloha de Russ (KH6JRM).

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Hilariously Useless Comments About Science from the US Supreme Court

Hilariously Useless Comments About Science from the US Supreme Court | KH6JRM's Amateur Radio Blog | Scoop.it
The U.S. Supreme Court is not composed of scientists. We've seen this before. But they do end up hearing a lot of cases that involve science, and are forced to describe the concepts and technology before them. They do not always rise to the challenge.

Via Olgy Gary
Russ Roberts's insight:

This article on the technological and scientific shortcomings of the U.S. Supreme Court is both humorous and, sadly, frightening.  Author Katharine Trendacosta does a good job of explaining  how Supreme Court Justices try to understand and rule on the rapid technological developments that are changing society.  Sometimes, their arguments involve convoluted arguments that could better be expressed with plain English.  Other times, their view reflects a scientific naivete that is simply astounding.  All of this could be funny until you realize the court's decisions will affect science, technology, and even Amateur Radio.  Take the "Amateur Radio Parity Act 2014 (HR.4969)" for instance.  Legislators with little or no knowledge of physics, propagation, or basic communications technology will try to force the FCC into rewriting the rules regarding ham antennas on private property.  While many of us amateur radio operators consider this a good thing, considering the presence of TV antennas, satellite dishes, and even broadcast antennas on some privately-owned buildings, the average citizen has no interest in amateur radio and relegates hams into the same group as CB operators.  For many citizens outside the orbit of amateur radio, any amateur radio antenna is considered an "eyesore" that will reduce property values. I've seen this NIMBY (not in my backyard) on Hawaii Island where people oppose cell phone towers, while complaining about poor cell phone reception in their neighborhoods.  These people have no understanding of how communications systems operate, and, more frequently, just don't care as long as the antenna isn't near them.  So, when this kind of attitude results in lawsuits, amateur radio operators have to spend a lot of time educating  people who should know better.  I'm amazed that our judicial system functions as well as it does, considering the scientific ignorance that pervades daily life. Aloha de Russ (KH6JRM).

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Olgy Gary's curator insight, July 18, 6:53 PM

Rather funny, until you realize that though they're not scientists, they do made decisions that affect science.

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Amateur radio license exams - Port St. Joe Star

Amateur radio license exams - Port St. Joe Star | KH6JRM's Amateur Radio Blog | Scoop.it
Amateur radio license exams
Port St. Joe Star
Amateur radio license exams will be given at 10 a.m. ET Aug. 16 at the Emergency Operations Center in Port St. Joe. Get your license and get on the air or upgrade an existing license.
Russ Roberts's insight:

An excellent example of a brief, to-the-point public service announcement  promoting an Amateur Radio.  The script is also suitable for a radio or television public service announcement (psa).  The  author of this announcement gave all of the important points in a brief statement. Plus, he/she allowed plenty of "lead time" for the newspaper to print the announcement.  Aloha de Russ (KH6JRM).

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45 years after Tranquility: One small step to a bright future | NASASpaceFlight.com

45 years after Tranquility: One small step to a bright future | NASASpaceFlight.com | KH6JRM's Amateur Radio Blog | Scoop.it

Forty-five years ago tonight, people across the world held their breaths as a hair-raising, heart-pounded descent occurred a quarter of a million miles away from Earth. At the Sea of Tranquility, on 20 July 1969, two humans succeeded in what many had considered impossible: landing and walking on the surface of another world.

 

 


Via Stratocumulus
Russ Roberts's insight:

I remember that night 45-years ago. I was stationed at Mather Air Force Base near Sacramento, California and watched this over a television set in my squadron's briefing room.  I wished I could have been there, but as a "desk commando" (admin type), I was in no way qualified to be part of that historic mission.  I was so glad when the landing and departure were a success.  We were back in the space game again!  Those were the days.  Aloha de Russ (KH6JRM).

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Woburn Ham Radio operator participates in D-Day reenactment - Woburn Daily Times

Woburn Ham Radio operator participates in D-Day reenactment - Woburn Daily Times | KH6JRM's Amateur Radio Blog | Scoop.it
Woburn Ham Radio operator participates in D-Day reenactment
Woburn Daily Times
The D-Day drill called for operators from MARS stations to reach out with short wave radio, using minimal power and simple wire antennas for transmission.
Russ Roberts's insight:

Last month, amateur radio operators throughout North Americaand Europe commemorated the 70th anniversary of "D-Day" by duplicating the beachhead communications of the invasion.  Among the participants was Woburn resident and amateur radio operator Dennis Kenney, who is a member of the U.S. Army's Military Auxiliary Radio System (MARS).  Despite a lightning strike near his home during the exercise, Kenny was able to return to the air.  The "D-Day" drill was quite competitive, with operators seeking European and U.S. contacts during the communications drill.  Kenney tied for 11th place out of 82 participants.  Congratulations to all participants for commemorating a day the changed the history of Europe.  Aloha de Russ (KH6JRM).

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Club teaches ham radio use, serves community with emergency communications - Dallas Morning News

Club teaches ham radio use, serves community with emergency communications - Dallas Morning News | KH6JRM's Amateur Radio Blog | Scoop.it
Dallas Morning News Club teaches ham radio use, serves community with emergency communications Dallas Morning News Max Perry, president of the Irving Amateur Radio Club, poses for a photograph in his radio room at his home in Irving, Texas on July...
Russ Roberts's insight:

Pretty decent article from "The Dallas News" promoting the emergency communications aspect of Amateur Radio.  The article focuses on the activities of amateur radio operators in the Dallas-Fort Worth area of Texas.  Max Perry (N5BSA), the president of the Irving Amateur Radio Club says amateur radio is "a wonderful hobby..."  It's "considered a self-teaching method of electronics.  That's where it came from:  An individual can study electronics and teach himself." Perry adds that one of the club's major projects "includes acting as emergency support during severe weather or large community events."  The club also participates in SKYWARN and RACES, "both of which aim to support emergency responders with radio communications."  Aloha de Russ (KH6JRM).

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Shortwave Central: A Century of Amateur Radio and the ARRL

Shortwave Central: A Century of Amateur Radio and the ARRL | KH6JRM's Amateur Radio Blog | Scoop.it
Another Amateur Radio first took place in 1960, when the first EME (moonbounce) contact was made on 1296 MHz between W6HB in California and W1BU in Massachusetts. During the 1950s and 1960s, The USSR and the ...
Russ Roberts's insight:

Another segment of the continuing series :A Century of Amateur Radio and the ARRL" by Al Brogdon (W1AB).  Included in this article are the DX-peditions of Danny Weil (VP2VB), the addition of more amateur radio prefixes (WA and WB), the introduction of the log periodic antenna, VHF contacts between Hawaii and California. the creation of CONELRAD, and the first moon bounce (EME) contacts between amateur radio operators.  Aloha de Russ (KH6JRM).

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Attendance at Friedrichshafen 'Ham Radio' 2014 Tops Last Year's: - eHam.net

Attendance at Friedrichshafen 'Ham Radio' 2014 Tops Last Year's: eHam.net Attendance at Germany's annual international "Ham Radio http://www.hamradio-friedrichshafen.de" exhibition on June 27-29 -- the Continent's biggest Amateur Radio event -- was...
Russ Roberts's insight:

The Friedrichshafen "Ham Radio" exhibition is getting more popular every year.  This year, Europe's largest ham convention drew 17,000 visitors, compared to 15,300 for 2013.  This year the theme was "Creative Amateur Radio--Build it Yourself."  Also, major emphasis was placed on getting young people involved in amateur radio, with the  3rd International Youth meeting taking place at Friedrichshafen on 28 June 2014.  Aloha de Russ (KH6JRM).

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Extending Moore's Law: Shrinking transistor size for smaller, more efficient computers

Extending Moore's Law: Shrinking transistor size for smaller, more efficient computers | KH6JRM's Amateur Radio Blog | Scoop.it
Over the years, computer chips have gotten smaller thanks to advances in materials science and manufacturing technologies. This march of progress, the doubling of transistors on a microprocessor roughly every two years, is called Moore's Law. But there's one component of the chip-making process in need of an overhaul if Moore's law is to continue: the chemical mixture called photoresist. In a bid to continue decreasing transistor size while increasing computation and energy efficiency, chip-maker Intel has partnered with researchers to design an entirely new kind of resist.

 

Now, in a bid to continue decreasing transistor size while increasing computation and energy efficiency, chip-maker Intel has partnered with researchers from the U.S. Department of Energy's Lawrence Berkeley National Lab (Berkeley Lab) to design an entirely new kind of resist. And importantly, they have done so by characterizing the chemistry of photoresist, crucial to further improve performance in a systematic way. The researchers believe their results could be easily incorporated by companies that make resist, and find their way into manufacturing lines as early as 2017.

 

The new resist effectively combines the material properties of two pre-existing kinds of resist, achieving the characteristics needed to make smaller features for microprocessors, which include better light sensitivity and mechanical stability, says Paul Ashby, staff scientist at Berkeley Lab's Molecular Foundry, a DOE Office of Science user facility. "We discovered that mixing chemical groups, including cross linkers and a particular type of ester, could improve the resist's performance." The work is published this week in the journal Nanotechnology.

 

To understand why resist is so important, consider a simplified explanation of how your microprocessors are made. A silicon wafer, about a foot in diameter, is cleaned and coated with a layer of photoresist. Next ultraviolet light is used to project an image of the desired circuit pattern including components such as wires and transistors on the wafer, chemically altering the resist.

 

Depending on the type of resist, light either makes it more or less soluble, so when the wafer is immersed in a solvent, the exposed or unexposed areas wash away. The resist protects the material that makes up transistors and wires from being etched away and can allow the material to be selectively deposited. This process of exposure, rinse and etch or deposition is repeated many times until all the components of a chip have been created.

 

The problem with today's resist, however, is that it was originally developed for light sources that emit so-called deep ultraviolet light with wavelengths of 248 and 193 nanometers. But to gain finer features on chips, the industry intends to switch to a new light source with a shorter wavelength of just 13.5 nanometers. Called extreme ultraviolet (EUV), this light source has already found its way into manufacturing pilot lines. Unfortunately, today's photoresist isn't yet ready for high volume manufacturing.

 

"The semiconductor industry wants to go to smaller and smaller features," explains Ashby. While extreme ultraviolet light is a promising technology, he adds, "you also need the resist materials that can pattern to the resolution that extreme ultraviolet can promise." So teams led by Ashby and Olynick, which include Berkeley Lab postdoctoral researcher Prashant Kulshreshtha, investigated two types of resist. One is called crosslinking, composed of molecules that form bonds when exposed to ultraviolet light. This kind of resist has good mechanical stability and doesn't distort during development -- that is, tall, thin lines made with it don't collapse. But if this is achieved with excessive crosslinking, it requires long, expensive exposures. The second kind of resist is highly sensitive, yet doesn't have the mechanical stability.

When the researchers combined these two types of resist in various concentrations, they found they were able to retain the best properties of both. The materials were tested using the unique EUV patterning capabilities at the CXRO. Using the Nanofabrication and Imaging and Manipulation facilities at the Molecular Foundry to analyze the patterns, the researchers saw improvements in the smoothness of lines created by the photoresist, even as they shrunk the width. Through chemical analysis, they were also able to see how various concentrations of additives affected the cross-linking mechanism and resulting stability and sensitivity.


Via Dr. Stefan Gruenwald
Russ Roberts's insight:

Thanks to Dr. Stefan Gruenwald for this fascinating story about extending Moore's law through advances in material science.  The key to shrinking microchips and, thereby, computers, is manipulating ultraviolet light and a chemical mixture called photoresist.  Recent research in reducing the size of computer chips is providing some success in developing resists capable of using different wavelengths of light.  New photoresist technology should hit the marketplace by 2017.  Aloha de Russ (KH6JRM).

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The Story of Television - 1956 RCA Educational Documentary - WDTVLIVE42 - YouTube

The Radio Corporation of America (RCA) traces scientific advances related the development of television from the 1920's to 1950's, including the introduction...

Via David Hall
Russ Roberts's insight:

Thanks to reporter David Hall for this fascinating documentary on the early days of television.  This film really brought back memories of watching Hopalong Cassidy, Captain Video, Kukla-Fran-and-Ollie, and the Cisco Kid.  This is a "keeper" for your video library.  Aloha de Russ (KH6JRM).

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ARRL President Issues Call to Action to Gain Support for HR.4969 Amateur ... - ARRL

ARRL President Issues Call to Action to Gain Support for HR.4969 Amateur ... - ARRL | KH6JRM's Amateur Radio Blog | Scoop.it
ARRL President Issues Call to Action to Gain Support for HR.4969 Amateur ...
ARRL
How can Amateur Radio thrive, if more and more Americans cannot have reasonable antennas at home?
Russ Roberts's insight:

ARRL President Kay Craigie (N3KN) has made a video appeal to all amateur radio operators in the United States to support the bi-partisan HR4969, which would require the FCC to extend coverage of PRB-1 to restrictive housing and property covenants, such as HOAs and CC&Rs.  Currently, PRB-1 only applies to state and local zoning laws and ordinances.  Aloha de Russ (KH6JRM).

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