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New QST QuickStats Poll Posted on ARRL Website - Keep America At Work

New QST QuickStats Poll Posted on ARRL Website - Keep America At Work | KH6JRM's Amateur Radio Blog | Scoop.it
Four new poll questions have just been published on the QuickStats page on the ARRL website. Questions in this month’s QuickStats poll: –Are you active in Digital Mobile Radio using MOTOTRBO or similar gear?
Russ Roberts's insight:

Here's your chance to participate in the latest ARRL poll.  Aloha de Russ (KH6JRM).

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KH6JRM's Amateur Radio Blog
Amateur Radio--news, analysis, discussion, and antennas
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FEMA Administrator Calls Ham Radio “Resilient” - ARRL

FEMA Administrator Calls Ham Radio “Resilient” - ARRL | KH6JRM's Amateur Radio Blog | Scoop.it
TAGS: amateur radio, amateur radio community, amateur radio operators, ARRL National Centennial, ARRL President Kay, Centennial Convention banquet, Connecticut Convention Center, disaster communication, disaster ...
Russ Roberts's insight:

The working relationship between the American Radio Relay League (ARRL) and the Federal Emergency Management Agency (FEMA) was put on solid ground when FEMA Director Craig Fugate (KK4INZ) and ARRL President Kay Craigie (N3KN) signed a formal Memorandum of Agreement (MOA) on 18 July 2014 at the ARRL Centennial Convention in Hartford, Connecticut.  In signing the document, Fugate said, "Radio is one of the most resilient communications technologies we have...Amateur Radio can serve as a vital service in support of emergency responders and survivors during a disaster."  Aloha de Russ (KH6JRM).

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Amateur Radio Contests Encourage Emergency Preparedness

Amateur Radio Contests Encourage Emergency Preparedness | KH6JRM's Amateur Radio Blog | Scoop.it
100 years ago, amateur radio operators were in the early years of making wireless communication with people around the world.
Russ Roberts's insight:

A nice written and audio package assembled by Iowa Public Radio reporter John  Pemble. Pemble visited the Story County Radio Club during the 2014 ARRL Field Day and came away with a new understanding of what "contesting" means.  Love 'em or hate 'em, contests prepare you to handle loads of traffic in a short period of time.  For me, Field Day provides all the contest excitement I need.  Somehow, I survive the 24-hour "send-a-thon".  I have a firm respect for contesters who can endure the stress and excitement without giving up.  Aloha de Russ (KH6JRM).

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Christofer Toumazou's 'lab on a chip' makes preventing illness possible

Christofer Toumazou's 'lab on a chip' makes preventing illness possible | KH6JRM's Amateur Radio Blog | Scoop.it

The Chairman and CEO of DNA Electronics, a provider of point-of-care genomic diagnostics solutions for medical and healthcare applications, Chris Toumazou, has been awarded the European Inventor Award 2014 in the Research category, for his rapid USB-based  DNA testing device.


Announced at the European Inventor Awards ceremony in Berlin on June 17th 2014, Toumazou’s win recognises his contribution to medical research with his ground-breaking invention. The device, which can show the results of a DNA test within minutes, uses silicon transistors to identify DNA and RNA, offering a simpler, cheaper and more discrete alternative to existing DNA analysis equipment.

 

The invention involves the amplification and detection of DNA and other biomolecules using pH measurement, providing the ground work for DNA Electronics’ molecular diagnostics platform Genalysis®. With the capability of identifying genomic sequences, not only in patients, but also in infectious agents, the company is developing products   that will provide clinicians with rapid actionable diagnosis of life-threatening conditions.

 

DNA Electronics is a developer of semiconductor solutions for real-time nucleic acid detection which enables faster, simpler and more cost-effective DNA analysis platforms.


A spin-out of Imperial College London, DNA Electronics was founded by Professor Toumazou following his invention of the company’s core technology that allows CMOS transistors to be switched on and off with DNA – the key invention enabling semiconductor-based sequencing.   Prof. Toumazou’s innovation has culminated in the world’s first DNA logic on standard CMOS technology.

 

The company’s IP portfolio includes techniques for monitoring nucleotide insertions using ion-sensitive transistors, enabling label-free electronic DNA sequencing and diagnostics platforms. DNA Electronics (DNAe) has developed the ground-breaking Genalysis® platform of disposable silicon chip-based solutions for real-time nucleic acid sequence detection at the point of care, providing end users with technology as yet unavailable outside a laboratory.

 

DNA Electronics has a non-exclusive, field-limited licensing agreement with Ion Torrent (now part of Thermo Fisher Scientific), whose next generation sequencing technology is based on DNA Electronics’ semiconductor sequencing IP. DNA Electronics has also licensed its Genalysis® technology platform to GENEU™, a company that is delivering on-the-spot genetic analytics services for cosmetics and skincare applications.

 

For more information: http://www.dnae.co.uk


Via idtdna, Dr. Stefan Gruenwald
Russ Roberts's insight:

The remarkable new diagnostic tool can show the results of a DNA test within minutes.  The device uses silicon transistors to identify DNA and RNA, and can serve as a cheaper, faster alternative to existing DNA test equipment. Here's a perfect example of thinking "out of the box" to solve a major healthcare issue.  Aloha de Russ (KH6JRM).

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SKYWARN WARRIORS: Local ham radio buffs work front lines for National Weather Service

SKYWARN WARRIORS: Local ham radio buffs work front lines for National Weather Service | KH6JRM's Amateur Radio Blog | Scoop.it
The National Weather Service has radar, satellites, Doppler, and double Doppler.
But even with all of that high technology, it still needs boots on the ground to know how the weather is affecting people.
Russ Roberts's insight:

An excellent public relations article by reporter Jack Minch, highlighting the contributions of amateur radio operators who are SKYWARN observers for the National Weather Service.  National Weather Service meteorologist Glenn Fields says, "A lot of our reports do come from amateur radio", adding that "Ham Radios are good because they are battery powered and it doesn't matter if the electricity goes out in a storm."  This is another example of amateur radio operators helping their community in times of natural disaster. Aloha de Russ (KH6JRM).

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Copasetic Flow: Standing Wave Ratio, or SWR, A Ham Radio Exam ...

Copasetic Flow: Standing Wave Ratio, or SWR, A Ham Radio Exam ... | KH6JRM's Amateur Radio Blog | Scoop.it
The amount of energy reflected is determined by how well the impedances of the antenna, the transmission line, and the transmitter match. The reflected rf energy can enter the transmitter and damage the final radio frequency ...
Russ Roberts's insight:

A nice, compact review (with questions) of the standing wave ratio (SWR).  This brief guide will help aspiring amateur radio licensees understand the working of SWR.  Hamilton Carter (KD0FNR) reviews SWR test questions and highlights  the correct choices.  A good, general review for taking the Technician Class Amateur Radio License.  Aloha de Russ (KH6JRM).

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Mysterious signal from the center of the Perseus Cluster unexplained by known physics

Mysterious signal from the center of the Perseus Cluster unexplained by known physics | KH6JRM's Amateur Radio Blog | Scoop.it

Astronomers using NASA's Chandra X-ray Observatory to explore the Perseus Cluster, a swarm of galaxies approximately 250 million light years from Earth, have observed the spectral line that appears not to come from any known type of matter.

 

Perseus Cluster a collection of galaxies and one of the most massive known objects in the Universe, immersed in an enormous 'atmosphere' of superheated plasma. It is approximately 768 000 light years across. "I couldn't believe my eyes," says Esra Bulbul of the Harvard Center for Astrophysics.  "What we found, at first glance, could not be explained by known physics."


"The cluster's atmosphere is full of ions such as Fe XXV,  Si XIV, and S XV.  Each one produces a 'bump' or 'line' in the x-ray spectrum, which we can map using Chandra. These spectral lines are at well-known x-ray energies."

 

Yet, in 2012 when Bulbul added together 17 day's worth of Chandra data, a new line popped up where no line should be. "A line appeared at 3.56 keV (kilo-electron volts) which does not correspond to any known atomic transition," she says.  "It was a great surprise."

 

We detected a weak unidentified emission line at E=(3.55-3.57)+/-0.03 keV in a stacked XMM spectrum of 73 galaxy clusters spanning a redshift range 0.01-0.35. MOS and PN observations independently show the presence of the line at consistent energies.


When the full sample is divided into three subsamples (Perseus, Centaurus+Ophiuchus+Coma, and all others), the line is significantly detected in all three independent MOS spectra and the PN "all others" spectrum. It is also detected in the Chandra spectra of Perseus with the flux consistent with XMM (though it is not seen in Virgo). However, it is very weak and located within 50-110eV of several known faint lines, and so is subject to significant modeling uncertainties. On the origin of this line, we argue that there should be no atomic transitions in thermal plasma at this energy. An intriguing possibility is the decay of sterile neutrino, a long-sought dark matter particle candidate.


Assuming that all dark matter is in sterile neutrinos with m_s=2E=7.1 keV, our detection in the full sample corresponds to a neutrino decay mixing angle sin^2(2theta)=7e-11, below the previous upper limits. However, based on the cluster masses and distances, the line in Perseus is much brighter than expected in this model. This appears to be because of an anomalously bright line at E=3.62 keV in Perseus, possibly an Ar XVII dielectronic recombination line, although its flux would be 30 times the expected value and physically difficult to understand. In principle, such an anomaly might explain our line detection in other subsamples as well, though it would stretch the line energy uncertainties. Another alternative is the above anomaly in the Ar line combined with the nearby 3.51 keV K line also exceeding expectation by factor 10-20. Confirmation with Chandra and Suzaku, and eventually Astro-H, are required to determine the nature of this new line.


Via Dr. Stefan Gruenwald
Russ Roberts's insight:

Thanks to Dr. Stefan Gruenwald for this fascinating look at a genuine mystery.  Astronomers don't know what they picked up their instruments when observations of the Perseus Cluster were processed.  Is this  unexplained phenomena, something beyond our known physics, or perhaps something akin to Jodie Foster's discovery in the film "Contact?"  In that film, amateur radio provided the background texture of the plot.  Whatever that signal was, it will keep scientists busy for a while.  Astronomers will have to confirm the data "with Chandra and Suzaku and eventually Astro-H...to determine the nature of this new line." We are not alone in this universe. Aloha de Russ (KH6JRM).

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SETTING UP AN AMATEUR RADIO STATION: Help For The New General Class Radio Operator - Kindle edition by Bob Patterson K5DZE. Crafts, Hobbies & Home Kindle eBooks @ Amazon.com.

SETTING UP AN AMATEUR RADIO STATION: Help For The New General Class Radio Operator - Kindle edition by Bob Patterson K5DZE. Download it once and read it on your Kindle device, PC, phones or tablets.
Russ Roberts's insight:

A helpful, easy- to- "digest" tutorial by Bob Patterson (K5DZE).  I found the text understandable and accurate.  I downloaded the e-book version from Amazon.com onto a "Kindle" app I had on my PC.  There's a lot of useful information in this volume.  Aloha de Russ (KH6JRM).

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Wire_Antennas_for_Ham_Radio

Wire_Antennas_for_Ham_Radio | KH6JRM's Amateur Radio Blog | Scoop.it
"Wire Antennas for Ham Radio"
Resource via YO3DAC / VA3IUL
#hamr #AmRad http://t.co/mcfqCtHT1C
Russ Roberts's insight:

Beautifully simple and clear descriptions of 230 proven antenna designs.  If you need an antenna idea, this is the site to check.  Great job by Iulian Rosu (YO3DAC/VA3IUL).  Antennas range from "Tee antennas" to a "Five element vertical log Periodic for 80, 40, and 20 meters."  For details, visit http://www.qsl.net/va3iul. ; Aloha de Russ (KH6JRM).

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A new virus is tearing apart Windows

A new virus is tearing apart Windows | KH6JRM's Amateur Radio Blog | Scoop.it
A new virus is on the rise, and this one is a doozy.Dubbed the 'Bladabindi,' this is a multi-identity virus that has the capability to fool your firewall by adding itself to t...

Via David Hall
Russ Roberts's insight:

Thanks to reporter David Hall for sending this warning from computer guru Kim Komando.  The bad boy  in this scenario is something called the "Bladabindi" virus which compromises your PC by fooling your windows firewall and adding itself to the exceptions list.  The virus harvests IDs and personal information by penetrating your keyboard, webcam, browsers, and Windows information.  If you suspect this virus has occupied your PC, you can possibly eliminate it by scanning your PC with a "tough" scanner and cleaner kit.  Scan and clean any USB external drives that you use with a USB cleaner.  Keep security patches updated.  The virus apparently is spread through infected USB drives.  A cautionary tale for all amateur radio operators using the Windows system.  Aloha de Russ (KH6JRM).

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How to build and fly your own 2.4 GHz drone

BBC TV reports on the enthusiasts who are using 2400 MHz to control their home-made smartphone equipped drones

Read the full Southgate News story... (Amateur Radio - How to build and fly your own 2.4 GHz drone: BBC TV reports on the enthusiasts...
Russ Roberts's insight:

Fascinating report from the BBC on enthusiasts who use 2.4 GHz to control their "homebrewed" smartphone-equipped drones. Thanks to an invention called the "Flone", a mobile phone can be transformed into a drone which can fly up to 20 meters (65 feet) above the ground, while taking photographs or video.  Check out the video produced by the BBC--http://www.bbc.co.uk/news/technology-28090632.  Aloha de Russ (KH6JRM).

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4,000 Scouts to experience Ham Radio at Scout AirFest in Illinois | Southgate Amateur Radio News

The Rainbow Council Amateur Radio Committee will operate a Special Event Station during Scout AirFest on August 8-10, 2014 (4,000 Scouts to experience Ham Radio at Scout AirFest in Illinois: The Rainbow Council Amateur...
Russ Roberts's insight:

Approximately 4,000 Boy Scouts are expected to attend the "Scout Air Fest" from 08 to 10 August 2014 on the grounds of the Lewis University Airport in Romeoville, Illinois.  The K2BSA Amateur Radio Association has given the Rainbow Council permission to operate K2BSA as a demonstration activity and as a Special Events Station after Taps are sounded in the evening.  K2BSA will participate in the WAE CW DX Contest and the Maryland QSO Party during the event.  Aloha de Russ (KH6JRM).

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PA2OLD - DKARS Magazine

PA2OLD - DKARS Magazine | KH6JRM's Amateur Radio Blog | Scoop.it
PA2OLD - Website about Ham Radio. (#hamradio #radioamateur #zendamateur #vrza #veron New radio amateur magazine from DKARS: http://t.co/OqMIdJxoLK)
Russ Roberts's insight:

According to Dutch amateur radio operator PA2OLD, you can now download the first issue of the DKARS amateur radio magazine (PDF format) of the "Dutch Kingdom Amateur Radio Society."  You can also received an e-mail copy of the 26-page publication by sending a request to:  magazine@dkars.nl.  Aloha de Russ (KH6JRM).

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FCC Snares Ham Operators - Radio World

FCC Snares Ham Operators - Radio World | KH6JRM's Amateur Radio Blog | Scoop.it
FCC Snares Ham Operators
Radio World
The FCC proposed a total of $33,500 in fines against two amateur radio operators for intentionally interfering with other hams and failing to identify their stations on-air while transmitting.
Russ Roberts's insight:

Many amateur radio operators avoid 14.313 MHz in the 20 meter amateur radio band because of the violations contained in this article.  The FCC Enforcement Bureau has levied fines totalling $33,500 against Michael Guernsey (KZ8O) and Brian Crow (K3VR) for malicious interference and failure to identify their stations.  Such behavior is unnecessary, demeans the amateur radio service, illegal, and  devoid of common sense.  Their licenses should be revoked, their equipment seized, and heavy penalties assessed. When I run into such antics, I avoid these  sociopaths by just turning the dial.  Perhaps the next time I hear similar acts of stupidity, I'll record the infraction and send a copy to the FCC.  Aloha de Russ (KH6JRM).

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APRS RF Bluetooth Communications

This photo is of my Blackberry Z30 running APRSDroid, and they are communicating via Bluetooth with the tiny tnc you see attached to the back of the UV-3R.
Russ Roberts's insight:

Innovative and fascinating project by Jerry Clement (VE6AB). Jerry has an interesting site, loaded with excellent photographs and home brewed projects.  As you can gather from his site, Jerry chases storms and reports on local weather conditions for his province.  You can contact Jerry here:  stormchaser@shaw.ca.  Aloha de Russ (KH6JRM).

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Army MARS at the ARRL Convention: - eHam.net

Army MARS at the ARRL Convention:
eHam.net
... so backpack HF radios carried by U.S. troops, its whip antenna extended and ready for action.
Russ Roberts's insight:

Nice article by Bill Sexton (N1IN0), the Army MARS HQ Public Affairs Officer.  Bill reviews some of the activities Army MARS did at its booth at the ARRL Centennial Celebration in Hartford,Connecticut.  He provided an excellent description of the ALE (automatic link establishment) display at the convention, using the PRC-150 manpack HF radio.  For more information on Army MARS go here:

williamc.sexton@gmail.com.  Aloha de Russ (KH6JRM).

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Ultra-precise atomic clock will reveal if physical constants really are constant

Ultra-precise atomic clock will reveal if physical constants really are constant | KH6JRM's Amateur Radio Blog | Scoop.it

A second is always a second. Nevertheless, no clocks are so precise that they can measure the exact duration of a second. So even the most precise atomic clocks are 0.000000000000000001 seconds off each second. Over the course of a few billion years that equals one second.


A single second off over the course of a few billion years may sound like a very precise clock -- and in a way it is but scientists from the University of Copenhagen would like a clock that is even more precise.

 

So now the scientists are suggesting that the atomic clocks around the world be connected by light rays; creating one big network of atomic clocks.

 

This network would measure time more precisely than ever before.

“A more precise clock would lead to a number of new, interesting possibilities,” says Professor Anders Søndberg Sørensen of the Niels Bohr Institute who recently co-authored a proposal for an improved atomic clock that was published in Nature Physics.

 

With more precise clocks come more precise experiments, and with more precise experiments come new technological possibilities. The Global Position System (GPS) for instance, only became possible when a new clock was invented that was so precise that it could measure how long it took for a signal from a GPS transmitter on Earth to reach satellites in space. Similarly, researchers hope that a more precise clock will lead to new scientific possibilities – and solve the debate over whether constants of nature are really constant at all.


Via Mariaschnee, Dr. Stefan Gruenwald
Russ Roberts's insight:

Thanks to Dr. Stefan Gruenwald for this interesting look at time and how we track it.  The University of Copenhagen, Denmark is "suggesting the atomic clocks around the world be connected by light rays, creating a big network of atomic clocks."  University of Copenhagen scientists believe more precise measurement means more technological possibilities.  With better clocks, we might be able to answer the big question--"whether constants of nature are really constant at all."  Something to think about when you coordinate your time with WWVB/WWV.  Aloha de Russ (KH6JRM).

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Roger G3XBM's Amateur Radio Blog: KX3 antenna failure

Roger G3XBM's Amateur Radio Blog: KX3 antenna failure | KH6JRM's Amateur Radio Blog | Scoop.it
I read on the M1KTA blog that an antenna lead on one of his Elecraft KX3 units has failed. I know these have seen some harsh portable field use but I would not have expected this. I have owned an FT817 for close on 14 ...
Russ Roberts's insight:

Roger (G3XBM) doesn't think too highly of the Elecraft KX3 for field opeations.  Citing an earlier report by M1KTA (see earlier post ) concerning an antenna lead failure in the KX3, Roger says the "KX3 is overpriced...and not well built for field use."  Roger believes the cheaper Yaesu FT-817ND has more features and is preferred for "Harsh field use."  Roger also criticizes the KX3 for its "mess of leads, coming out all over the place....the FT-817 is neat, rugged and compact."  As you may have guessed, Roger prefers his Yaesu FT-817ND to other QRP rigs.  I think his criticism of the KX3 is a bit harsh.  Aloha de Russ (KH6JRM).

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M1KTA's QRP ham radio blog: Some antennas... and one of ...

M1KTA's QRP ham radio blog: Some antennas... and one of ... | KH6JRM's Amateur Radio Blog | Scoop.it
Some antennas... and one of SotaBeams Wirewinders. Now got the antennas all up. Had to put up the Union flag on the 10/12/25/17/20. Light house, 80m dipole (I can use almost vertical down too and bottom feed so it is a ...
Russ Roberts's insight:

Nice discussion from M1KTA on the kinds of antennas he uses during QRP operations.  His blog also contains a variety of interesting articles, including the Elecraft KX3, the W3EDP antenna, a review of the Chinese Rock Mite QRP transmitter, a look at the GY560 frequency counter, and a photo essay on a lightning strike.  Aloha de Russ (KH6JRM).

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FCC Amateur Radio Technician, General and, Extra Class Question Pool Study Aid - Kindle edition by Jason Canfield. Professional & Technical Kindle eBooks @ Amazon.com.

FCC Amateur Radio Technician, General and, Extra Class Question Pool Study Aid - Kindle edition by Jason Canfield. Download it once and read it on your Kindle device, PC, phones or tablets.
Russ Roberts's insight:

This book by Jason Canfield contains the complete FCC question pool for the Technician, General, and Extra Class Licensing exam.  You can download the volume to your Kindle device, smart phone, tablet, or PC.  Aloha de Russ (KH6JRM).

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Pofung UV-5R 136-174/400-520MHz Dual-Band Two-way Ham Amateur Radio Transceiver

Pofung UV-5R 136-174/400-520MHz Dual-Band Two-way Ham Amateur Radio Transceiver | KH6JRM's Amateur Radio Blog | Scoop.it
in Consumer Electronics, Radio Communication, Walkie Talkies, Two-Way Radios (Pofung UV-5R 136-174/400-520MHz Dual-Band Two-way Ham Amateur Radio Transceiver http://t.co/KTWSDj5JW9 #prepping #survival...
Russ Roberts's insight:

Here's another batch of Chinese-made HTs.  I'm not familiar with the Pofung brand.  On the surface, the HT looks good at a reasonable price.  There are a few caveats however.  Be sure there is a return policy in case you don't like the radio or its features.  Some of the Chinese HTs are difficult to program.  Be sure to get the appropriate cables and software to make the HT usable for your situation.  If you're unsure of this brand, consider a more familiar brand such as Yaesu, Kenwood, Alinco, Icom, or even Wouxan (Chinese).  Aloha de Russ (KH6JRM).

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A Century of Amateur Radio and the ARRL: - eHam.net

A Century of Amateur Radio and the ARRL: eHam.net During the decade of the 1960s and subsequently, Gus Browning, W4BPD, traveled the world and operated from over 100 countries, many of them extremely rare ones and sometimes the first ham operation...
Russ Roberts's insight:

Here's the latest segment of "A Century of Amateur Radio and the ARRL" from Al Broglon (W1AB).  In this edition of the popular historical series, Broglon covers the DX-pedition career of world traveler Gus Browning (W4BPD), the 11 December 1961 launch of OSCAR-1 and the launch of OSCAR-2 on 2 June 1962--the first two amateur radio satellites, the growth of 2 meter FM repeaters, and the 1967 rule establishing incentive licensing for amateur radio operators.  Great article....Aloha de Russ (KH6JRM).

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The Broadcasters' Desktop Resource Volume 5, #52

The Broadcasters' Desktop Resource Volume 5, #52 | KH6JRM's Amateur Radio Blog | Scoop.it
Information and resources for the broadcast engineer and manager.

Via David Hall
Russ Roberts's insight:

Thanks to reporter David Hall for this installment of "The Broadcasters' Desktop Reference."  You don't have to be a broadcast engineer to appreciate the topics discussed in this segment of the BDR.  Areas covered include:  A Quick Guide to FCC fines; FCC opens 90 day window for Low Power FM (LPFM); Recovery in the aftermath of a disaster; Ask the lawyer--your FCC questions answered; and testing solid state rectifiers.  There's always something of interest in these BDR volumes.  Check it out.  Aloha de Russ (KH6JRM).

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Home

Home | KH6JRM's Amateur Radio Blog | Scoop.it
ICQ AMATEUR / HAM RADIO PODCAST - A FORTNIGHTLY PODCAST FOR AMATEUR / HAM
RADIO OPERATORS BY AMATEUR / HAM RADIO OPERATORS (@ZB2BL Thanks for the follow.
Russ Roberts's insight:

Here is the latest edition of the ICQ Amateur/Ham Radio Podcast. This program features three outstanding programs:  A review of the Wouxon UV-8D, a discussion of the Museums on the air program with Sue Pycroft (G6DDS), and an international roundtable discussion from 15 June 2014.  Also included in the podcast is the latest amateur radio news and events from around the world.  Aloha de Russ (KH6JRM).

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Quick Study For Your General Class Amateur Radio License - Kindle edition by Aleksandra Rohde. Professional & Technical Kindle eBooks @ Amazon.com.

Quick Study For Your General Class Amateur Radio License - Kindle edition by Aleksandra Rohde. Download it once and read it on your Kindle device, PC, phones or tablets.
Russ Roberts's insight:

This General License Class study guide by Aleksandra Rohde should help Technician Class amateur radio operators prepare for their General Class license test.  You can download the 207-page e-book on your PC, smartphone, tablet, or Kindle device.  The $2.99 price tag seems reasonable.  Aloha de Russ (KH6JRM).

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Nobel Laureate Joe Taylor, K1JT, to Conventioneers: Amateur Radio Will Thrive: - eHam.net

Nobel Laureate Joe Taylor, K1JT, to Conventioneers: Amateur Radio Will Thrive: eHam.net "Radios are going to become increasingly digital," he said, with analog-to-digital and digital-to-analog conversion occurring "closer and closer to the antenna...
Russ Roberts's insight:

Nice recap of the speech delivered by Nobel Laureate Joe Taylor (K1JT), who developed the popular WSJT suite of weak signal DSP software for Amateur Radio.  In his remarks to amateur radio operators meeting at the 100th anniversary of the ARRL in Hartford, Connecticut, Taylor said good engineering "will definitely be a combination of hardware and software" as amateur radio continues to thrive and serve the public interest.  For Taylor, amateur radio will continue to benefit from "a healthy fertilization between amateurs and professionals."  Taylor added that "radios are going to become increasingly digital" with analog-to-digital conversion occurring "closer and closer to the antenna."  Aloha de Russ (KH6JRM).

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