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Graphene Paint to Power our Homes?

Graphene Paint to Power our Homes? | KH6JRM's Amateur Radio Blog | Scoop.it
Scientists from the University of Manchester have discovered a material which combines graphene, a one-atom thick layer of graphite, with the transition metal dichalcogenides.

 

Something straight out of a science fiction film is fastly becoming an exciting reality as scientists from the University of Manchester have discovered a material which combines graphene, a one-atom thick layer of graphite, with the transition metal dichalcogenides. The material is thin and flexible, and it can absorb sunlight to produce electricity at the same rates of existing solar panels. This could be potentially used to coat the outside of buildings to generate power required to run appliances inside.

 

The material is composed of transition metal dichalcogenides layers sandwiched between the two outer layers of graphene. The graphene acts as an extremely efficient conductive layer, and the TMDC acts as a very sensitive light absorber.

 

Researchers have found that the 'light absorption characteristic' of the material can be increased when the graphene layer is sprinkled with gold particles. The material has a quantum efficiency of 30%.

 

Researchers believe that entire buildings could be powered by coating their exposed surfaces with the panels. Further, the energy produced by the panels could be used to alter the transparency and reflectivity of windows and fixtures.

 

This type of graphene material could be used to form on the outside of the buildings to generate power required to run the appliances inside. It is flexible and easy to use.

 

Not only can graphene paint be used to power objects, the material will also be able to chaneg color.

 

Researchers also believe that the graphene base substance has the ability to create a new generation of hand-held devices such as smartphones that can be powered using sunlight. These devices can be made ultra-thin, transparent and flexible.

 

Research suggests that there can be a high level of optimism regarding the development of graphene in the near future.

 

They hope that the material can be used for a wide range of industrial and day-to-day applications, providing potential technological breakthroughs in the areas, right from electronics to telecommunications and energy generation.

 


Via Dr. Stefan Gruenwald
Russ Roberts's insight:

If this technology delivers on its promises, amateur radio operators could have a new way of generating power for emergency or portable operations. Perhaps this technology could be used at repeater sites or on DX-peditions.  Something to think about.  Aloha de KH6JRM.

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Marco Bertolini's curator insight, June 7, 2013 8:41 AM

Une peinture qui révolutionne la production d'énergie : une couche large d'un atome.  Appliquée sur la façade de votre habitation, elle change la chaleur solaire en énergie électrique.  La fin des panneaux solaires ?

Nacho Vega's curator insight, June 9, 2013 1:39 PM

New material = Good news!

KH6JRM's Amateur Radio Blog
Amateur Radio--news, analysis, discussion, and antennas
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The Andaman and Nicobar Islands DXpedition.

Projected date is for sometime in November 2014.

Russ Roberts's insight:

Source:  Southgate Amateur Radio Club News.

 

Krish (W4VKU) will lead a 10-member amateur radio team to the Andaman Islands (AS-001) and the Nicobar Islands (AS-033) sometime in November 2014.  The call sign for both operations will be VU4KV. Krish is looking for sponsors.  For details, visit http://www.vu4ku.info.  Aloha de Russ (KH6JRM).

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Simple Ham Radio Antennas: The Multiband HF Stealth Vertical.

https:www.youtube.com/watch?v=Uk8XD7BP1U.

http://www.tonymilluzzi.com/2013/10/my-multiband-wire-vertical-antenna.html.

Russ Roberts's insight:

I ran across this article by Tony Milluzzi (KD8RTT) while I was searching for some stealth antenna ideas for my "antenna farm" at my new QTH in the Puna District of Hawaii Island.  Most of my wire antennas were "rearranged" by Tropical Storm Iselle on 07-08 August 2014.  Although the house survived intact, the antennas strung between several trees "bit the dust."  So, I'm rebuilding the antenna site with wire recovered from the storm. What Tony has to offer is an excellent way to rig a 40, 20, and 10 meter stealth vertical using a sturdy tree as the antenna support.  With 16 buried radials and suitable 50 ohm coax, which is also buried, Tony has an antenna that can't be seen in his HOA-restricted housing area.  He found this stealth antenna performed much better than the antenna mounted in his attic.  When I was fist licensed as a novice operator in 1977, one of my first antennas was exactly like this, the only exception being the coconut tree serving as the "mast."  Like Tony, I was surprised just how well the antenna worked.  I used this arrangement for several months until I acquired a used Drake MN-4 antenna transmatch to smooth out the small amount of SWR found in my system.  I still have the old Drake MN-4.  A suitable Norfolk Pine Tree is located about 60 feet/18.29 meters from the shack. It appears Tony's antenna will be resurrected near a rainforest in the Puna District.  I'll keep you posted.  Aloha de Russ (KH6JRM).

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EMF 2014: It Takes an Amateur Radio Village - ARRL

EMF 2014: It Takes an Amateur Radio Village - ARRL | KH6JRM's Amateur Radio Blog | Scoop.it
EMF 2014: It Takes an Amateur Radio Village
ARRL
Special event station GB2EMF will operate from the Amateur Radio Village. Campers' identification tags consist of a “fun piece of technology” that attendees can take home and use following the event.
Russ Roberts's insight:

If you'll be in the UK during the last week of August, you may want to check out "EMF 2014".  The ARRL calls "EMF 2014" a "festival for anyone interested in radio, electronics, space, homebrewing, robots, UAVs, 3D Printing, DIYBio, Internet Culture, or pretty much anything else you can think of."  The event will feature an Amateur Radio Village and special event station GB2EMF.  The "EMF 2014" event will be held just south of Bletchley, UK, Friday through Sunday, 29-31 August 2014.  Aloha de Russ (KH6JRM).

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NAB Sues FCC Over Incentive Auction

   

The National Association of Broadcasters filed a petition with the U.S. Court of Appeals for the District of Columbia Circuit on Monday, challenging the FCC's decision to change the methodology used to predict local television coverage areas for the incentive auction.

 

Why This Matters: NAB argued that the auction framework "violates the Spectrum Act, is arbitrary, capricious, and an abuse of discretion under the Administrative Procedure Act." The association argued that the FCC’s proposal could result in significant viewership loss. 


Via David Hall
Russ Roberts's insight:

Thanks to reporter Dave Hall for this fascinating article.  I often wondered when the FCC frequency auction process would affect those who control broadcast media...now I know.  Now that the broadcast media giants are threatened by the new FCC "incentive auction process", the National Association of Broadcasters (NAB) has taken notice and has filed suit to stop the plan.The NAB contends the new auction protocol "violates The Spectrum Act, is arbitrary, capricious, and an abuse of discretion under the Administrative Procedure Act."  Perhaps, amateur radio operators and public service personnel can find an ally in our more powerful and financially stable commercial media friends.  Broadcasters are springing into action, now that their advertising and viewer numbers are threatened by the auction process.  Strange bedfellows, indeed.  Aloha de Russ (KH6JRM).

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QRZCQ Premium is now available.

Beta version available to licensed amateur radio operators.

Russ Roberts's insight:

Source:  http://www.eham.net/articles/32988.

 

Gregor (D05SSB) and Daniel (D07FOX) are now offering a beta version update of the popular QRZCQ program.  The new version has expanded features and easy integration into many operating platforms.  Contact Gregor or Daniel --  http://www.QRZCQ.com.  Aloha de Russ (KH6JRM).

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Poway — Now a Ham-Friendly City - Radio World

Poway — Now a Ham-Friendly City - Radio World | KH6JRM's Amateur Radio Blog | Scoop.it
Poway — Now a Ham-Friendly City
Radio World
Poway, Calif., might become a Mecca for amateur radio operators with regulations approved in early August by the City Council. Antennas up to 65 feet can now be built with only a building permit required.
Russ Roberts's insight:

Nice follow up story from "Radio World" on the recent decision by the Poway City Council to allow amateur radio antenna structures up to 65 feet with only a building permit and notification to nearby neighbors.  Aloha de Russ (KH6JRM).

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BBC Radio 4 Extra: The First Pirate

The First Pirate is the title of a Radio 4 Extra–an interview with*Les Woodland who tells the story of Captain Plugge, founder of Radio Normandy, the first station to take on the BBC.
Russ Roberts's insight:

Many of us remember the classic pirate radio stations that counter programmed the BBC during the early 1960s.  Radio Caroline and others offered rock n roll, catchy commercials, and fast talking DJs to English listeners usually tuned to BBC programs.  Although these stations were shut down in time, they left a mark on British radio stations.  That's not the real beginning of pirate broadcasting in the UK, though.  In a BBC interview with Les Woodward, we learn of an early pirate broadcaster known simply as "Captain Plunge", the founder of the controversial "Radio Normandy" and other off-shore radio stations that taunted the BBC during the 1930s.  Fascinating story...Aloha de Russ (KH6JRM).

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The 10 Minute Dipole.

http://www.youtube.com/watch?v=uQ4FRZ02uua).  Time:  8 min, 30 sec.

Russ Roberts's insight:

Do you need a cheap, easily erected, and effective dipole for emergency or portable use?  This video from Scott (W4PA) of Ten-Tec has all the information you need to build a simple, inexpensive dipole that will get you on the air.  It's just a matter of "cut, solder, and tie it off."  I built one of these antennas after Tropical Storm Iselle leveled my "antenna farm" at my new QTH in the Orchidland Estates area of the Puna District.  The antenna isn't fancy, but it works.  I found all of the materials in my garage. Aloha de Russ (KH6JRM).

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Dipole and Inverted V Antenna Basics.

http://www.youtube.com/watch?v=fyOWRTWdKM).  Time:  48 minutes, 39 seconds.

Russ Roberts's insight:

As many of you know, Tropical Storm Iselle did considerable damage to the Puna and Ka'u Districts of Hawaii Island.  My new QTH in the Orchidland Estates area escaped major damage, but did lose several tall trees which were being used to support dipoles, inverted vees, and loop antennas.  I'm now in the rebuilding phase of my "cleaned out" antenna farm. One of the first antennas I'll build is a multi-band inverted v fed with ladder line, covering 80-10 meters.  I found this helpful youtube video from Dave Tadlock.  Dave covers most of the important issues relating to inverted v antennas, including construction tips, mounting of the antenna, and tuning. Nice, well-paced video.  Aloha de Russ (KH6JRM).

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Ham radio specialist picked up the signal early in life - Southgate Amateur Radio Club

Ham radio specialist picked up the signal early in life
Southgate Amateur Radio Club
They emanated from the mysterious little wood-framed box before him - an old ham radio he'd found in the musty basement of his Cambridge, Ontario home.
Russ Roberts's insight:

Amateur Radio lore is full of interesting stories of how people picked up the "radio bug" and turned it into a life-long avocation.  This story of Canadian ham Kevin Clements (VA3OR) will ring true for many ham operators....an old radio, a homebrewed antenna, and exotic voices from afar--all this contributing to the desire to join a world wide community of electronics enthusiasts.  Amateur Radio is a life-long journey that begins with curiosity and enriches our lives until we join the "mortal coil".  Great story.  Aloha de Russ (KH6JRM).

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New Youth Program from RemoteHamRadio.com: - eHam.net

New Youth Program from RemoteHamRadio.com:
eHam.net
Eugene is looking forward to chasing DX, contesting, and exploring all aspects of what amateur radio has to offer.
Russ Roberts's insight:

According to Ray Higgins (W2RE) of www.remotehamradio.com, a new program has been established to promote activity in young hams.  The first recipient of the program is Eugene Lee (KD2FJB), who will be attending MIT in the fall.  Eugene says his housing situation prohibits any antenna structures and that remote operation will be necessary to engage in amateur radio.  Higgins says Lee will have some top-notch "elmers" (mentors) to help him.  His cadre of elmers will include "some of the brightest and best DXer/contesters who are on RHR and eager to help."  Aloha de Russ (KH6JRM).

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Ham Radio Tutorial-How to use An Antenna Tuner.

Excellent video by N7TFP (http://www.youtube.com/watch?=hLrYm9mrMg).  Time:  13 minutes, 10 seconds.

Russ Roberts's insight:

A beautifully presented video on the basic operation of what we call an antenna "tuner".  Some hams call such devices antenna transmatches.  Either way, N7TFP has done an excellent job explaining a basic piece of amateur radio equipment.  This video is worth adding to your reference collection.  Aloha de Russ (KH6JRM).

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Plymouth Village residents get ham radio certification for emergencies - Redlands Daily Facts

Plymouth Village residents get ham radio certification for emergencies - Redlands Daily Facts | KH6JRM's Amateur Radio Blog | Scoop.it
Plymouth Village residents get ham radio certification for emergencies Redlands Daily Facts Kaye Beechum, left, a resident of the Plymouth Village retirement community in Redlands, works during an emergency drill Thursday with Connie Garrett,...
Russ Roberts's insight:

Rather than rely on the latest technology to maintain communications during an emergency, a group of active retirees in the Plymouth Village, California retirement community has become licensed amateur radio operators and is "familiarizing themselves with a disaster relief plan if emergency personnel are unable to reach the retirement community" in a timely manner.  Keith Kasin, the Plymouth Village Executive Director a licensed amateur radio operator himself, is leading the group, which meets weekly to practice emergency communications procedures.  Once voluneers are trained and tested, Plymouth Village will have around 30 certified amateur radio operators working to keep the community safe.  Aloha de Russ (KH6JRM).

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Operators needed for Botswana DXpedition (A2).

Operation will last from 4 to 7 days.

Russ Roberts's insight:

Source: Southgate Amateur Radio Club News.

 

A DXpedition planned for Mozambique has been scrubbed because of health problems experienced by Arnold (WB6OJB).  However, all is not lost for those needing contacts from Africa.  Frosty (K5LBU) is travelling to Botswana (A2) in early September and is looking for operators to run the 4 to 7 day event.  For details, contact Frosty--3da0cf@gmail.com.  Aloha de Russ (KH6JRM).

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TRIAD, FAIRS sponsoring program on Amateur Radio - Southwest Virginia Today

TRIAD, FAIRS sponsoring program on Amateur Radio - Southwest Virginia Today | KH6JRM's Amateur Radio Blog | Scoop.it
TRIAD, FAIRS sponsoring program on Amateur Radio
Southwest Virginia Today
TRIAD in partnership with FAIRS (Foundation for Amateur Intl. Radio Service, Ltd.) will sponsor a program on August 26, 2014 at 7:00 p.m.
Russ Roberts's insight:

Another great way to publicize your amateur radio club's activities.  Local news outlets, in this case Virginia's "swvatoday.com", did an excellent job of highlighting  a community meeting about Amateur Radio and its contributions to the local community.  Perhaps, your club could do a live interview on a local radio station or submit an article to a local newspaper. Positive publicity such as this will enrich the hobby and inform communities about what we do as amateur radio operators.  Aloha de Russ (KH6JRM).

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Amateur radio club needs your help - Southgate Amateur Radio Club

Amateur radio club needs your help
Southgate Amateur Radio Club
I'm a member of the Farnborough Society FDRS. We are trying to find a past member who moved and holds one of the clubs calls.
Russ Roberts's insight:

The Farnborough Society FDRS needs your help in locating a past member who left the area and held one of the club's call signs.  Bob (G0YYY) would like to find Paul Leach (G4UEG), who was active through 1985.  If you have any RSGB call books covering the period 1985-1993, please email Bob at g0yyy.radio@gmail.com.  Aloha de Russ (KH6JRM).

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NVIS Loop Antenna Made Simple.

http://www.youtube.com/playlist?list=PL58E9802D88B44EI.

Russ Roberts's insight:

I found this 3-part video while I was searching for NVIS (near vertical incident skywave) antenna ideas.  The videos are part of the 2011 IDEX Military Show at the Stealth Telecom booth.  The antenna is a tunable magnetic loop that can be mounted on a vehicle roof.  Stealth Telecom designed this NVIS antenna for the military.  The claimed range is between 300 to 500 miles.  Although no price was given, it could be quite expensive, given the requirements spelled out by the military.  It would be nice to have one of these antennas for emergency use.  Oh, well, it's back to low-elevation dipoles and full-wavelength loops for my new NVIS antenna.  Aloha de Russ (KH6JRM).

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QSO Today Weekly Podcast, 19 August 2014.

Amateur Radio AM is going strong.

Russ Roberts's insight:

Source:  http://www.eham.net/articles/32987.

 

Fascinating conversation between Eric (4Z1UG) and Ron (W6OM).  Ron uses a rebuilt Bauer 707 broadcast transmitter to join the Western AM net on 3870 kHz.  I enjoyed this look back into broadcast history and the use of old AM broadcast transmitters on the ham bands.  Aloha de Russ (KH6JRM).

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Depending on Ham Radio when all else fails.

Depending on Ham Radio when all else fails. | KH6JRM's Amateur Radio Blog | Scoop.it
It has been said so many times "when all communication fails, you can depend on amateur radio.
Russ Roberts's insight:

We've all heard the oft repeated phrase, "When all communication fails, you can depend on Amateur Radio."  In the case of a critical message from Gough Island to Cape Town, South Africa, that phrase came painfully true.  When satellite links failed on Gough Island, two South African amateur radio operators, Trevor (ZS1TR) and Pierre (ZS1HF) managed to connect the two distant points, alternating between 20 and 30 meters, depending on propagation.  The 896 word message to the Department of Environmental Affairs in Cape Town took 1 hour and 45 minutes to transmit, but the message finally got through despite  less than optimum conditions.  In this case, the old saying came true.  Aloha de Russ (KH6JRM).

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Ham radio Chasqui-1 CubeSat deployed from ISS - Southgate Amateur Radio Club

Ham radio Chasqui-1 CubeSat deployed from ISS - Southgate Amateur Radio Club | KH6JRM's Amateur Radio Blog | Scoop.it
Ham radio Chasqui-1 CubeSat deployed from ISS
Southgate Amateur Radio Club
Ham radio Chasqui-1 CubeSat deployed from ISS. The amateur radio satellite Chasqui-1 was successfully deployed from the International Space Station (ISS) during a space-walk.
Russ Roberts's insight:

The Ham Radio Chasqui-1 CubeSat was deployed successfully from the International Space Station on 18 August 2014 at 14:00 UT.  The Peruvian CubeSat is a research satellite designed by the Peruvian National University of Engineering in collaboration  with the Southwestern State University in Kursk.  The CubeSat carries two cameras (one visible light; the other for infra-red), various control systems, and an amateur radio beacon on 437.025 MHz, using 1200 bps AFSK or 9600 bps GMSK.  So far the beacon has not been received.  Aloha de Russ (KH6JRM).

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40 Meter Inverted V Antenna--Build, Tune & Test.

http://www.youtube.com/watch?v=7za6gPWcNng).  1 hr, 07 min, and 17 sec.

Russ Roberts's insight:

Following the passing of Tropical Storm Iselle, many amateur radio operators in the Puna District of Hawaii Island are rebuilding their antenna installations.  High winds snapped many trees that supported inverted vees, dipoles, and even towers.  There's nothing like starting over.  I have several antenna plans moving forward, including a 40/15 meter inverted v dedicated to the Hawaii Inter island Net (7.088 Mhz, 0200 UTC, daily).  Unlike many of my former dipoles, I'll feed this antenna with RG-8X coaxial cable, rather than 450-ohm ladder line.  This in- depth video  from Dave Tadlock covers just about everything you need to know about building an inverted v antenna.  Dave includes helpful construction tips, the necessary formulas, the type of wire to use, mast alternatives, and the use of an antenna transmatch (i.e. tuner).  The video is quite good, and it has given me a few new ideas.  Aloha de Russ (KH6JRM).

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2014 International Lighthouse and Lightship Weekend a huge success.

541 registrations from 56 countries.

Russ Roberts's insight:

Source:  Southgate Amateur Radio Club/Jim Linton (VK3PC).

 

What a contest weekend!  According to Jim Linton (VK3PC), the ILLW had 541 registrations from 56 countries, setting a new record in the annual event designed to promote awareness of the world's historic lighthouses and lightships.  The USA went all out this year, with 91 amateur radio stations participating.  First time portable operations from former maritime navigational stations totaled more than 100.  Jim says, "Already, 30 registrations are listed for the ILLW 2015 event, which will be held 15-16 August."  You can't argue with success.  Great job by everyone.  Aloha de Russ (KH6JRM).

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'Hamfest' brings together amateur radio operators - wlfi.com

'Hamfest' brings together amateur radio operators - wlfi.com | KH6JRM's Amateur Radio Blog | Scoop.it
'Hamfest' brings together amateur radio operators
wlfi.com
TIPPECANOE Co., Ind. (WLFI) There weren't any pork products, but they “hammed it up” at the Cary Boy Scout Camp Sunday morning. The 44th annual Hamfest featured amateur radio operators.
Russ Roberts's insight:

Nice, concise report from WLFI reporter Nate Chute on this past Sunday's (17 August 2014) Hamfest at the Cary Boy Scout Camp in Tippecanoe County, Indiana.  According to reporter Chute, the 44th Annual event gave "radio operators the chance to exchange equipment that would otherwise be tough to acquire...From devices that communicate with Morse Code to digital connections, the amateur radio group enjoyed talking about their passion for the equipment," much of it built by hams themselves.  The Hamfest ended Sunday with a raffle which included radio accessories from vendors.  A good time was had by all.  Aloha de Russ (KH6JRM).

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Ham Radio 40/80/160 Meter Inverted V Dipole Antenna.

Excellent, easy to follow tutorial from Dave Tadlock. (http://www.youtube.com/watch?v=GLhNUmolKKY).

Russ Roberts's insight:

Now that I finally have a decent backyard at my new QTH, I think I'll try this simple coil loaded inverted dipole antenna...160 meters has always eluded me because of space limitations.  It's time to unpack the soldering gun and get this antenna in the air.  Nice video.  Aloha de Russ (KH6JRM).

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Building a Multiband HF Dipole Antenna.

A simple dipole that will give you plenty of DX at a modest cost.

Russ Roberts's insight:

Source:  "Radio Ham Guy."  (http://www.youtube.com/watch?v=8KHzsKYsZL0).

 

A simple, inexpensive antenna that will cover the 40-20-15-10-and 6 meter bands.  I had one of these a few years ago and it worked very well in my backyard.  Excellent tutorial.  Aloha de Russ (KH6JRM).

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