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How to Thoroughly Clean Your Keyboard (Without Breaking Anything)

How to Thoroughly Clean Your Keyboard (Without Breaking Anything) | KH6JRM's Amateur Radio Blog | Scoop.it
Your keyboard is one of your most important peripherals, but it’s bound to get clogged with dirt and grime over time. Dust off, scrub down, and clean up your number one input device safely with these tips.

Via David Hall
Russ Roberts's insight:

A useful tutorial...Aloha de Russ (KH6JRM).

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KH6JRM's Amateur Radio Blog
Amateur Radio--news, analysis, discussion, and antennas
Curated by Russ Roberts
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20,000+ FREE Online Science and Technology Lectures from Top Universities

20,000+ FREE Online Science and Technology Lectures from Top Universities | KH6JRM's Amateur Radio Blog | Scoop.it

The following topics are covered:

 

Aerospace, Anthropology, Astrobiology, Astronomy, Astrophysics, Biochemistry, Bioengineering, Biology, Biotechnology, Chemistry, Civil Engineering, Cognitive Science, Computers, Cosmology, Dentistry, Electrical Engineering, Engineering, Environment, Future, General Science, Geoscience, Machine Learning, Material Science, Mathematics, Mechanical Engineering, Medicine, Metallurgy, Mining, Nanotechnology, Oceanography, Philosophy, Physics, Physiology, Robotics, and Sociology.

 

Lectures are in Playlists and are alphabetically sorted with thumbnail pictures. No fee, no registration required - learn at your own pace. Certificates can be arranged with presenting universities.

 

NOTE: To subscribe to the RSS feed of Amazing Science, copy http://www.scoop.it/t/amazing-science/rss.xml into the URL field of your browser and click "subscribe".

 

This newsletter is aggregated from over 1450 news sources:

http://www.genautica.com/links/1450_news_sources.html

 

All my Tweets and Scoop.It! posts sorted and searchable:

http://www.genautica.com/tweets/index.html

 

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NOTE: All articles in the amazing-science newsletter can also be sorted by topic. To do so, click the FIND buntton (symbolized by the FUNNEL on the top right of the screen)  and display all the relevant postings SORTED by TOPICS.

 

You can also type your own query:

 

e.g., you are looking for articles involving "dna" as a keyword

 

http://www.scoop.it/t/amazing-science/?q=dna

 

Or CLICK on the little FUNNEL symbol at the top right of the screen

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MOST_READ 3D_printing aging AI anthropology art astronomy bigdata bioinformatics biology biotech chemistry computers cosmology education environment evolution future genetics genomics geosciences green_energy history language machine_learning map material_science math med medicine microscopy nanotech neuroscience paleontology photography photonics physics postings robotics science technology video 


Via Dr. Stefan Gruenwald
Russ Roberts's insight:

A very interesting site.  Amazing Science covers many disciplines.  Subscribe to the news letter and be " amazed." Aloha, Russ, KH6JRM. 

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Michel Jammes's curator insight, December 30, 2013 1:02 AM

MOOC , not a buzz word , a reality...

Margarida Sá Costa's curator insight, January 31, 6:55 AM

Lectures are in Playlists and are alphabetically sorted with thumbnail pictures. No fee, no registration required - learn at your own pace. Certificates can be arranged with presenting universities.

Casper Pieters's curator insight, March 9, 4:21 PM

Great resources for online learning just about everything.  All you need is will power and self- discipline.

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WPI duo play important role on ham radio during marathon - Worcester Telegram

News from the University of Massachusetts WPI duo play important role on ham radio during marathon Worcester Telegram Amateur radio is a mode of communication that can stretch around the Earth and can run on a car battery when the grid is down and...
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Keep an eye on this technology. It has great potential. Aloha,Russ,KH6JRM.
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Home is wanted for radio ham's cards - Oxford Mail

Home is wanted for radio ham's cards - Oxford Mail | KH6JRM's Amateur Radio Blog | Scoop.it
Home is wanted for radio ham's cards Oxford Mail A 90-year-old amateur radio enthusiast in Witney is looking for a loving home for his collection of 200 radio verification cards.
Russ Roberts's insight:
if you're interested in giving these unique cards a home, call 0-1993-772583 (in the UK) Aloha, KH6JRM.
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Propagation Report from Hannes Coetzee, ZS6BZP | Southgate Amateur Radio News

Propagation Report from Hannes Coetzee, ZS6BZP | Southgate Amateur Radio News | KH6JRM's Amateur Radio Blog | Scoop.it
Hannes Coetzee, ZS6BZP, reports that the expected solar activity will be at moderate levels (Amateur Radio - Propagation Report from Hannes Coetzee, ZS6BZP: Hannes Coetzee, ZS6BZP, reports that...
Russ Roberts's insight:
Excellent report from Hannes. You should be able to work some decent DX this week. Aloha dr Russ ( KH6KRM).
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TVTechnology: Mic Companies Await FCC Auction Rules

TVTechnology: Mic Companies Await FCC Auction Rules | KH6JRM's Amateur Radio Blog | Scoop.it

onlTVTechnology Having lost access to the 700 MHz band a few years ago, wireless microphone operators are now eyeing the FCC’s proposed broadcast TV spectrum incentive auction with understandable trepidation.


Via David Hall
Russ Roberts's insight:

Broadcast stations and amateur radio operators aren't the only ones fearing loss of rf spectrum.  Wireless microphone operators who support the entertainment, broadcast news, and sports industries are also facing cutbacks from proposed FCC realignments of their shared frequencies.  As mentioned in earlier posts, the consumer demand for broadband services will reconfigure how the rf spectrum is shared.  Ofcom in the UK has already stripped amateur radio operators of their place in the 2.3 GHZ and 3.4 GHZ bands.  Similar moves are coming to the United States.  I know it's trite and overstated, but "use it or lose it" may apply here.  Aloha de Russ (KH6JRM).

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Amateur radio operators play important role - WKBN.com

Amateur radio operators play important role - WKBN.com | KH6JRM's Amateur Radio Blog | Scoop.it
Amateur radio operators play important role
WKBN.com
Those antennas are not being used to pick up a favorite song in another city. In fact, those antennas may be used to communicate with other people from halfway around the world.
Russ Roberts's insight:

A short, well written article describing the emergency communications role that amateur radio operators play in times of emergency.  Aloha de Russ (KH6JRM).

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GB1STG St George's Day - Southgate Amateur Radio Club

GB1STG St George's Day
Southgate Amateur Radio Club
Later used as a racecourse and golf course, it's now a nature reserve and a popular location for walks, kite-flying and now: Ham Radio.
Russ Roberts's insight:

On Wednesday, 23 April 2014, The Essex Hams will celebrate St. George's Day at Galleywood Common, Essex (UK).  Amateur radio operators will be using call sign GB1STG on 40 meters and higher bands, looking for CW/SSB contacts.  A 2 meter station will also be on the air.  For details, visit http://www.m0pzt.com?gb1stg.  Aloha de Russ (KH6JRM).

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Portable Amateur Radio Satellite Antenna

A small hand held portable amateur radio dual band 2 meter / 70 cm satellite antenna.
Russ Roberts's insight:
A perfect VHF/ UHF antenna for portable or emergency use. Aloha, Russ ,KH6JRM.
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Ham Radio club provides critical communication for marathon | Southgate Amateur Radio News

CBS reports on amateur radio involvement in the Boston Marathon which takes place Monday, April 21 (Ham Radio club provides critical communication for marathon: CBS reports on amateur radio involvement in the B...
Russ Roberts's insight:
Amateur radio will be ready. Let's hope everything remains peacefully. Aloha de Russ, KH6JRM
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Excalibur Amateur Radio Satellite Antenna

A 21 element 2 meter and 70 cm yagi antenna for working SO-50, the ISS and other amateur radio satellites.
Russ Roberts's insight:

Nicely produced video tutorial from Dave Tadlock on the use of the 21-element Excalibur Amateur Radio Satellite Antenna.  The yagi covers both the 2 m and 70 cm bands, making this antenna suitable for contacts with SO-50 and other amateur radio satellites.  Aloha dr Russ (KH6JRM).

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ARNewsline Report 1914 -- April 18 2014: - eHam.net

ARNewsline Report 1914 -- April 18 2014: eHam.net Some U-K hams have openly speculated that the reason these statistics are no longer available is because the regulatory body had stopped undertaking enforcement action, at least in regard to those...
Russ Roberts's insight:

This edition of the "ARNewsline Report" is quite extensive and includes articles on the commissioning of the new ISS ham radio digital TV system, 40 meter interference from Sudan and Somaliland, an appeal to Ofcom from UK hams for the resolution of repeater problems, and the approval of the VK9MT (Mellish Reef) DXpedition for DXCC credit.  Aloha de Russ (KH6JRM).

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The Napier Amateur Radio Club “Q” VHF/UHF Antenna Project ...

The Napier Amateur Radio Club “Q” VHF/UHF Antenna Project ... | KH6JRM's Amateur Radio Blog | Scoop.it
This antenna was recently developed by Laurie, ZL2TC as a Club project for the Napier Amateur Radio Club. The design brief was for a simple, rugged 2 M/ 70 Cm antenna that is easily constructed by club members in an ...
Russ Roberts's insight:

Do you need a simple, rugged, and easily assembled antenna for 2m/70 cm?  This basic end-fed design from the Napier Amateur Radio Club, Inc (ZL2GT) could be your ticket to hitting those distant repeaters.  According to the club's press release, the antenna can be easily assembled and works as an end-fed dipole on 2 meters and a 3dB collinear antenna on 70 cm.  The club has a limited amount of these antennas available for sale.  For details, contact leezlal@gmail.com.  Aloha de Russ (KH6JRM).

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Broadcastify

http://www.broadcastify.com/listen/ "The world's largest source of public safety, aircraft, rail, and marine radio live audio streams."


Via David Hall
Russ Roberts's insight:

This is one of the better monitoring programs.  With broadcastify, you can listen to aircraft, rail, marine, public safety, and some amateur radio frequencies.  This site could be useful for ARES teams, search and rescue groups, and public safety organizations.  Aloha de Russ (KH6JRM).

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New Norwich station takes spot on AM dial - TheDay.com

New Norwich station takes spot on AM dial - TheDay.com | KH6JRM's Amateur Radio Blog | Scoop.it
New Norwich station takes spot on AM dial TheDay.com Harkins, who has been a ham radio operator since 1981, has wanted for years to launch one of the low-powered broadcast stations allowed by the Federal Communications Commission.
Russ Roberts's insight:
Kevin Hawkins, an amateur radio operator since 1981, has put a low power, part 15, AM radio station on the air to promote local events and to describe local historical attractions of his town. Hawkins says the range of the 100 me at 1700 kHz is good, considering the low power of the signal. Aloha, Russ, KH6JRM.
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The 10.0-10.5 GHz Spectrum Battle Heats Up - TV Technology

The 10.0-10.5 GHz Spectrum Battle Heats Up - TV Technology | KH6JRM's Amateur Radio Blog | Scoop.it
The 10.0-10.5 GHz Spectrum Battle Heats Up TV Technology In the United States, the 10.0-10.5 GHz band is allocated on a primary basis to the government radiolocation service, and on a secondary basis for non-government radiolocation services and...
Russ Roberts's insight:
RM-11715 would reframe frequencies in the. 10.0-10.5 GHz band for wireless networks. Amateur Radio is a shared user of this band, with much experimental work being done on this portion of the rf spectrum. This ahold be a wake up call for all of us. Aloha, Russ, KH6JRM.
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Guglielmo Marconi was a hacker victim | Southgate Amateur Radio News

As we mark the birth of an Italian inventor on International Marconi Day, April the 26th, comes the story that one of his early exploits was hacked and caused him much embarrassment (Amateur Radio - Guglielmo Marconi was a hacker victim: As we mark...
Russ Roberts's insight:
An interesting tale about Marconi. It seems hacking is not a recent development. Aloha de Russ (KH6 JRM).
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Amazon.co.jp: W5JCK Math Guide for Amateur Radio Extra Class Exam 2012-2016 電子書籍: Ceburn Swinden: Kindleストア

useAmazon.co.jp: W5JCK Math Guide for Amateur Radio Extra Class Exam 2012-2016 電子書籍: Ceburn Swinden: Kindleストア (W5JCK Math Guide for Amateur Radio Extra Class Exam 2012-2016: Ceburn Swinden: ¥100 Science ベストセラー8位 http://t.co/niObXSzZFQ)...

Russ Roberts's insight:

A helpful guide to mastering the mathematics needed to pass the Amateur Radio Extra Class License Exam.  The e-guide can be downloaded into a variety of Kindle devices.  If you're a bit rusty in algebra or trigonometry, this publication will sharpen you focus enough to understand the math involved in the test.  Aloha de Russ (KH6JRM).

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Survival

Survival | KH6JRM's Amateur Radio Blog | Scoop.it
How to Build Several Easy Antennas for Amateur Radio (How to Build Several Easy Antennas for Amateur Radio - Pinterest http://t.co/Ho4BgsJGmU #ham #radio)...
Russ Roberts's insight:

A good, basic tutorial on simple antenna design for amateur radio operators.  The article covers safety, wire selection, feed lines, construction practices, and antenna theory.  I'll make a copy of this for my antenna notebook.  Aloha de Russ (KH6JRM).

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Special prefix for ANZAC Day - Southgate Amateur Radio Club

Special prefix for ANZAC Day
Southgate Amateur Radio Club
All Australian radio amateurs may substitute their VK prefix with AX on ANZAC Day, April the 25th.
Russ Roberts's insight:

Australian amateur radio operators will be allowed to use the prefix AX instead of their usual VK prefix for ANZAC Day on 25 April 2014.  The Wireless Institute of Australia (WIA) recommends that those who use the special prefix also confirm contacts using a QSL card with the AX callsign.  Aloha de Russ (KH6JRM).

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When A Sleepy California Town Was At The Center of War in the Pacific - Gizmodo

When A Sleepy California Town Was At The Center of War in the Pacific - Gizmodo | KH6JRM's Amateur Radio Blog | Scoop.it
When A Sleepy California Town Was At The Center of War in the Pacific Gizmodo Born in Santa Paula, a rural Ventura County town, Stuart received one of the country's first shortwave amateur radio licenses when he was only thirteen, but he had to...
Russ Roberts's insight:
Fascinating story of Dr. Charles Stuart and his important role in World WarI Ii. Great story about amateur radio, too. Aloha de Russ, KH6JRM.
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Successful launch of KickSat carrying 104 Sprite satellites - Southgate Amateur Radio Club

Successful launch of KickSat carrying 104 Sprite satellites - Southgate Amateur Radio Club | KH6JRM's Amateur Radio Blog | Scoop.it
Southgate Amateur Radio Club Successful launch of KickSat carrying 104 Sprite satellites Southgate Amateur Radio Club On the KickSat updates page Zac Manchester KD2BHC has announced a competition to receive the first amateur radio signals from the...
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Some more background info on the successful launch of these satellites. Aloha de Russ , KH6JRM
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PhoneSAT and KickSAT active

PhoneSAT and KickSAT active | KH6JRM's Amateur Radio Blog | Scoop.it
...it's all about one thing (Amateur Radio #KickSat and #PhoneSat active http://t.co/vexmLu4m9R #amsat #hamradio #hamr #cubesat)
Russ Roberts's insight:
The satellites are in business...good hunting. 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
Articles in QST described modern VFO and transmitter construction, small portable stations, antenna advances, and VHF/UHF equipment and techniques.
Russ Roberts's insight:

Another excellent installment of "A Century of Amateur Radio and the ARRL" by Al Brogdon (W1AB).  In this segment, Al recounts the gradual restoration of amateur radio frequencies following World War II, the reassignment of call sign areas, and the world-wide 10 meter QSO party of 1946 to celebrate the return of 10 meters to amateur radio use.  Great article.  Aloha de Russ (KH6JRM).

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Building a Ground Plane Antenna | Southgate Amateur Radio News

Randy Hall K7AGE has released a video showing how to build a 1/4 wave ground plane for the amateur radio 2m band.
Russ Roberts's insight:

If you're "fed up" with the mediocre rubber ducky antennas that come with HTs these days, you may want to build a simple 1/4 wave ground plane antenna to give your HT a real "boost" into those distant repeaters.  Thankfully, Randy Hall (K7AGE) has produced an excellent, step-by-step video tutorial to  guide you through the process of building this little gem.  Later on, you can try your hand at building a slightly more complex 5/8 wave vertical for your 2 meter rig.  Given sufficient height, both the 1/4 and 5/8 wavelength antennas can add some needed "punch" to your signal without spending a lot of money.  Randy's antenna is a good place to start.  Aloha de Russ (KH6JRM).

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The Massive Russian Radar Site in the Chernobyl Exclusion Zone - Newsweek

Newsweek
The Massive Russian Radar Site in the Chernobyl Exclusion Zone
Newsweek
From its surface emanate pairs of cylindrical wings, the “active element” of the antenna. These make the whole thing look like a flight of white butterflies ...
Russ Roberts's insight:

An excellent, personal memoir of the Chernobyl Exclusion Zone and the infamous "Russian Woodpecker" that tore up the amateur radio and shortwave broadcasting bands in the early 1980s.  Alexander Nazaryan takes on a tour of this once bustling military and commercial site in Ukraine that was changed forever by the nuclear accident of 26 April 1986.  The massive Duga-3 over-the-horizon HF backscatter radar station still stands as a reminder of just how tense geopolitics were more than 30 years ago.  The massive antenna now serves as a mecca for climbing and jumping enthusiasts...quite a change from its former intelligence gathering duties.  A cautionary tale, indeed.  Aloha de Russ (KH6JRM).

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