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Will plug-in electric cars crash the electric grid?

Will plug-in electric cars crash the electric grid? | KH6JRM's Amateur Radio Blog | Scoop.it

onThe growing number of plug-in electric cars — more than 96,000 bought in 2013 — may put a lot of new strain on the nation’s aging electrical distribution systems, like transformers and underground cables, especially at times of peak demand, according to University of Vermont (UVM) scientists. So they have created a novel solution, which they report on in the forthcoming March issue of IEEE Transactions on Smart Grid.


“The key to our approach is to break up the request for power from each car into multiple small chunks — into packets,” says Jeff Frolik, a professor in the College of Engineering and Mathematical Sciences and co-author on the new study. This is similar to transmitting data packets on the Internet.

 

By using the nation’s growing network of “smart meters” — a new generation of household electric meters that communicate information back-and-forth between a house and the utility — the new approach would let a car charge for, say, five or ten minutes at a time, Frolik says, and then wait to make another request for power. If demand was low, it would continue charging, but if it was high, the car would have to wait.

 

“Most of the time, as long as people get charged by morning, they won’t care,” says UVM’s Paul Hines, an expert on power systems and co-author on the study. “By charging cars in this way, it’s really easy to let everybody share the capacity that is available on the grid.”

 
Via Dr. Stefan Gruenwald
Russ Roberts's insight:

Fascinating story about the impact of electric cars on the nation's overstretched electric grid.  The  effect of all those charging electric cars could be mitigated if devices such as "smart meters" would share the charging task.  The key to the puzzle is to break up charging into small chunks, something akin to how packets are sent on the internet.  Interesting study.  Aloha de Russ (KH6JRM).

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Eli Levine's curator insight, February 25, 9:24 AM

This is going to be a significant challenge.

 

We need to get off fossil fuels if we're going to survive and I honestly don't give too many cares about the economic consequences that are going to have to be sorted out in order to do this.

 

We need to be off fossil fuels entirely, or we're going to die.

 

That means new infrastructure, new power plants, new methods of charging our homes, etc.

 

It means a decentralization away from the power companies and utlities.

 

And the biggest economic challenge that I see is how to employ all of those workers who are going to be laid off when the big fossil fuel companies finally kick the bucket.

 

You're an idiot if you want to keep it the same in this case.

 

Stupid conservatives.

 

Think about it.

KH6JRM's Amateur Radio Blog
Amateur Radio--news, analysis, discussion, and antennas
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Tristan da Cunha and Gough Island DXpedition.

Early September on air date established.

Russ Roberts's insight:

Source:  Southgate Amateur Radio Club News.

 

Paul (ZS1S/AD9ZS) and possibly one other amateur radio operator will be on-air from Tristan da Cuna and perhaps Gough Island in early September.  The South African Antarctic Supply ship "SA Agulhas II" will leave Cape Town on 04 September 2014 with arrival at Tristan da Cunha 4 to 5 days later.  The ship will depart for  Gough Island after a few days and return to Tristan da Cunha ready for departure to Cape Town on 04 October 2014.  The amateur radio team will install a six meter propagation beacon (ZD9SIX) on Tristan da Cunha before they leave for Cape Town.  Aloha de Russ (KH6JRM).

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New Mellish Reef videos available.

Four new videos capture the excitement of this DXpedition.

Russ Roberts's insight:

Source: Southgate Amateur Radio Club News.

 

New videos of the VK9MT DXpedition to Mellish Reef are now available.  For details, visit http://vk9mt.com.  Go to "media" and then o "video" to see the expedition videos.  Good stuff.  Aloha de Russ (KH6JRM).

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SpaceX Fail? Great!

SpaceX Fail? Great! | KH6JRM's Amateur Radio Blog | Scoop.it

Congratulations are due to Elon Musk and his Space Exploration Technologies (SpaceX) for generating an amazingly cool explosion over Central Texas Saturday morning when an experimental Falcon 9 Reusable (F9R) self-destructed after a launch anomaly. This temporary setback involved no risk to humans and followed an impressive number of successful tests on the path to dramatically lowering space launch costs via the development of a reusable launch vehicle.

 

While NASA's space shuttle demonstrated that an orbital spacecraft can be reused, and at least two other commercial firms are developing exciting new vehicles that can be reflown, these systems dispose of nearly all of the hardware required to put them into space in the first place. By accepting the long-standing assumption of a single-use launcher, they are locked into a cold war paradigm where every orbital launch is a $100 million event. Only SpaceX has been pushing to completely redefine the economics of space by returning the first and possible second stage assemblies and engines safely back to Earth. If perfected, such a system could reduce the cost of launching payloads or astronauts by an order of magnitude.

 


Via Stratocumulus
Russ Roberts's insight:

Despite the recent failure of its Falcon 9 Reusable Launch Vehicle, SpaceX is firmly committed to reusing as much of the launch system as possible.  At $100 million per NASA Shuttle Launch, the new Falcon 9 system marks a radical departure for sending payloads into space. If SpaceX perfects its Reusable Launch Vehicle, the new launch system "could reduce the cost of launching payloads or astronauts by an order of magnitude.   I trust that AMSAT is listening and will, investigate lower cost launch vehicles.  A low-cost constellation of amateur radio satellites similar to the old IMARSAT system would do a lot for emergency communications and the promotion of amateur radio.  Aloha de Russ (KH6JRM).

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IOTA news from OPDX,

Latest data from Tedd Mirgliotta (KB8NW).

Russ Roberts's insight:

Source:  Southgate Amateur Radio Club News.

 

Here's the latest Islands On The Air (IOTA) DX report from Tedd (KB8NW).

 

Some of the interesting island locations being activated include:

 

EU-080)--A Spanish team will activate EG1EI on Estela de Fora Island from 29-31 August 2014.

 

EU-174--Laci (HA0HW) will be active from Thassos Island from 12 September-22 September 2014.

 

NA-046--Bill (K2HVN will be on Martha's Vineyard on 20 September 2014 only.

 

OC-218--Cear (VE3LYC) and Bob (KD1CT) will be active from Mathhew Island from 04-07 September 2014.

 

Aloha de Russ (KH6JRM).

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Simple Ham Radio Antennas: The Multiband HF Stealth Vertical.

Simple Ham Radio Antennas:  The Multiband HF Stealth Vertical. | KH6JRM's Amateur Radio Blog | Scoop.it
https:www.youtube.com/watch?v=Uk8XD7BP1U. 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 Di...
Russ Roberts's insight:

Here's an update of an antenna I built to replace the vertical antenna I lost during Tropical Storm Iselle on 07-08 August 2014.  I patterned the antenna after a video submitted by Tony Milluzzi (KD8RTT).  Great antenna--easy to build, cheap, and mostly invisible.  Aloha de Russ (KH6JRM).

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4 Pcs UHF 400-470 MHz Portable Handheld 2-way Amature Ham Radio BF-888 S

4 Pcs UHF 400-470 MHz Portable Handheld 2-way Amature Ham Radio BF-888 S | KH6JRM's Amateur Radio Blog | Scoop.it
in Consumer Electronics, Radio Communication, Walkie Talkies, Two-Way Radios (4 Pcs UHF 400-470 MHz Portable Handheld 2-way Amature Ham Radio BF-888 S http://t.co/e5BeU9uyFw #prepping #survival #preppertalk...
Russ Roberts's insight:

According to updated information, only 2 of the Baofeng BF-888 S UHF (400-470 MHz), 2-way HTs are available.  The price is $39.99.  This HT would make a nice backup HT for your car, CERT team, or RACES club.  Aloha de Russ (KH6JRM).

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Lightning strikes and other over voltage threats require surge protection - ABB Conversations

Lightning strikes and other over voltage threats require surge protection - ABB Conversations | KH6JRM's Amateur Radio Blog | Scoop.it
As a Product Marketing Manager for surge protection, I experience daily the curiosity and the mystery around lightning.

Via David Hall
Russ Roberts's insight:

Thanks to reporter David Hall for referring me to this excellent article by Bertrand Berges.  Berges describes the physics of lightning strikes and the type of equipment that will protect your data and processing equipment.  Bertrand makes an excellent case for protecting your sensitive electronic equipment with with specific kinds of surge protection--type 1 which occurs during a massive surge from a lightning strike and type 2, which happens during repetitive small surges that can damage equipment over the short term.  Excellent article worth keeping in your amateur radio library.  Aloha de Russ (KH6JRM).

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The first Greek microsat is a fact!

Help is needed to relay reception reports back to the scientific team managing the small satellite.

Russ Roberts's insight:

Source:  Southgate Amateur Radio Club News.

 

The Cyprus Amateur Radio Society is asking all hams on Cyprus "to support the work of the group through the establishment of the necessary infrastructure for reception and relaying of the microsatelllite signals back to the team for scientific analysis through the website www.lamdasat.com."  Aloha de Russ (KH6JRM).

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Ham radio, what you need to know! - The Prepper Broadcasting Network

Ham radio, what you need to know! - The Prepper Broadcasting Network | KH6JRM's Amateur Radio Blog | Scoop.it
Ham radio, what you need to know! Ham radio can be an indispensable resource during an event. Not only will it allow you to keep in touch with other members (Alerts: Ham radio, what you need to know!
Russ Roberts's insight:

A concise, basic explanation of what amateur radio can do for communities isolated by natural or human-caused disasters.  This well-written article from "The Prepared Canadian" is part of an effort to get the "Prepper Community" into ham radio for its emergency communications applications.  This article is part of an amateur radio series being streamed over the "Prepper Broadcasting Network."  Aloha de Russ (KH6JRM).

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Cover the Next SpaceX Launch In-Person

Cover the Next SpaceX Launch In-Person | KH6JRM's Amateur Radio Blog | Scoop.it

We’re inviting social media users to apply for credentials to attend the Sept. 19 launch for the next cargo resupply flight to the International Space Station by Space Exploration Technologies (SpaceX). Photographer on Instagram? Come photograph the launch. Prolific tweeter? Come live tweet the event. Long read writer on your blog? Come write about NASA. We invite you to the launch of the SpaceX Falcon 9 rocket, targeted to liftoff at 2:38 a.m. EDT Friday, Sept. 19, from Space Launch Complex 40 at Cape Canaveral Air Force Station in Florida.


Via Stratocumulus
Russ Roberts's insight:

If you maintain an amateur radio blog, a social media presence, or work in the communications field, you may be eligible for press credentials to cover the 19 September 2014 launch of the next cargo resupply ship to the International Space Station (ISS).  Why not give this a try?  If you're interested, contact NASA--http://www.nasa.gov.  Aloha de Russ (KH6JRM).

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A Tiny 3-D Printed Space Camera To Fit Inside CubeSats | Popular Science

A Tiny 3-D Printed Space Camera To Fit Inside CubeSats | Popular Science | KH6JRM's Amateur Radio Blog | Scoop.it

s“ NASA is experimenting with small space cameras made almost entirely of 3-D printed parts. One experimental telescope, sized to fit inside a four-inch CubeSat, will likely be finished this September, according to the agency.”


Via iz1crr, Fabrice Chenille, Stratocumulus
Russ Roberts's insight:

The manufacturing of ultra small parts for space cameras, transmitters, and motors is becoming a major mission of 3D technology.  Once these products are put inside a CubeSat, you will have a fully functional and sophisticated research vessel at a reasonable price.  I wonder if AMSAT is considering something such as this.  Aloha de Russ (KH6JRM).

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December is YOTA (Youngsters on the Air) Month.

Registration deadline is 24 November 2014.

Russ Roberts's insight:

Source:  Southgate Amateur Radio Club News.

 

IARU Region 1 Youth Coordinator Lisa Leendus says the next YOTA is planned for the entire month of December.  The "idea is to break the ice for some youngsters to take the microphone in hand...and get on the air."  For details on how you can participate in this event, visit http://www.iaru-r1.org/index.php?option=com_remositaryItemid=173&func=startdown&id=538. ; Aloha de Russ (KH6JRM).

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434 MHz balloon B-64 now on second lap of the Northerm Hemisphere.

The party balloon launched on 12 July 2014 is still airborne.

Russ Roberts's insight:

Source:  Southgate Amateur Radio Club News.

 

Talk about endurance....the solar-powered amateur radio balloon B-64, launched on 12 July 2014, remains in the air.  The balloon with its 10mWatt amateur radio transmitter has already circumnavigated the Northern Hemisphere once,  and is now finishing a second circuit of the same hemisphere.  The party balloon's transmitter is sending a low-power (10mWatt) signal on 434.500 MHz using Contesia data modes 64/100 and ARPS (M0XER-4).  You can track the balloon by visiting:  http://www.spacenear.us/tracker/flyb.php. ; Aloha de Russ (KH6JRM).

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Sable Island mini DXpedition.

One-day operation set for 08 September 2014.

Russ Roberts's insight:

Source:  Southgate Amateur Radio Club News.

 

Here's the latest update on the Sable Island (CY0C) DXpedition. Parks Canada is only permitting daylight operation, so have your radio ready when the operators come ashore on 08 September 2014.  According to DXpedition members, the main objective of the Sable Island operation is "to assess the feasibility and practicality for future one-day amateur radio DXpeditions to Sable Island."  For details, visit http://www.cy0dxpedition.com. Aloha de Russ (KH6JRM).

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Baofeng UV-5RA+ Dual-Band 136-174/400-520MHz Ham Two-way Radio UHF/VHF handheld

Baofeng UV-5RA+ Dual-Band 136-174/400-520MHz Ham Two-way Radio UHF/VHF handheld | KH6JRM's Amateur Radio Blog | Scoop.it
in Consumer Electronics, Radio Communication, Walkie Talkies, Two-Way Radios (Baofeng UV-5RA+ Dual-Band 136-174/400-520MHz Ham Two-way Radio UHF/VHF handheld http://t.co/3oSpGajFhK #prepping #survival...
Russ Roberts's insight:

Here's a good price ($42.99) for the popular Chinese-made Baofeng UV-5RA, dual band VHF/UHF HT.  While I wouldn't have this HT as my primary hand held radio, it would make a nice  piece of portable equipment for your "go kit".  As with any internet purchase, check out the item and the reputation of the seller before you buy.  There are several user groups that will help you program this rig if the manual is hard to understand.  Aloha de Russ (KH6JRM).

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10 GHz under threat from broadband internet links.

Severe problem reported in Prague, Czech Republic.

Russ Roberts's insight:

Source:  Southgate Amateur Radio Club News.

 

According to Czech Republic Amateur Radio contest station OK2KKW, interference from commercial internet links are covering up weak ham stations in the Amateur Radio 10 GHz band.   I fear we are going to see more of this intrusion as the demand for broadband services increases.  Already, amateur radio access to the 2 and 3 GHz bands is being restricted in the UK because of the increased need for rf spectrum from mobile communications services and broadband internet services.  Even military users are being told to look elsewhere for spectrum in the UK.  I predict the erosion of amateur radio access to the microwave frequencies will continue at an accelerated pace.  Aloha de Russ (KH6JRM).

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Southend & District Amateur Radio Special Event - Southgate Amateur Radio Club

Southend & District Amateur Radio Special Event - Southgate Amateur Radio Club | KH6JRM's Amateur Radio Blog | Scoop.it
Southend & District Amateur Radio Special Event
Southgate Amateur Radio Club
...
Russ Roberts's insight:

There's nothing quite like operating a special event station to help a worthy cause.  Such was the case this past Sunday, 24 August 2014, when an amateur radio team from the Southend and District Amateur Radio Society participated in a fund raising effort for the Little Havens Hospice.  Using the special event call sign GB0FHH, the club was on-air from the Summer Music Festival at the Ekco Sports & Social Club in Southend.  For photos and more information, visit http://www.esexham.co.uk/news/southend-ars-aug-2-14.html. ; Aloha de Russ (KH6JRM).

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SpaceX test mishap prompts delay of Falcon 9 launch | Spaceflight Now

SpaceX test mishap prompts delay of Falcon 9 launch | Spaceflight Now | KH6JRM's Amateur Radio Blog | Scoop.it

SpaceX says it has delayed liftoff of the next Falcon 9 rocket until Wednesday to ensure the problem that caused a prototype rocket to self-destruct in a test flight Friday will not pose a risk to the launch of a telecommunications satellite for AsiaSat.

 

Launch is now set for 12:50 a.m. EDT (0450 GMT) Wednesday from Cape Canaveral's Complex 40 launch pad. The launch window extends for 3 hours, 15 minutes.


Via Stratocumulus
Russ Roberts's insight:

SpaceX says it's delaying this weeks's Falcon 9 rocket launch until Wednesday morning to review circumstances behind a test flight that ended in a spectacular explosion on Friday.  SpaceX spokesman John Taylor said the space launch company is aiming to launch the Asia 6 telecommunications satellite at 0450 UTC Wednesday from the Cape Canaveral Complex, launch pad number 40.  Aloha de Russ.(KH6JRM).

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Chasqui-1 amateur radio satellite deployed - Radio Society of Great Britain - Main Site : Radio Society of Great Britain – Main Site

Chasqui-1 amateur radio satellite deployed - Radio Society of Great Britain - Main Site : Radio Society of Great Britain – Main Site | KH6JRM's Amateur Radio Blog | Scoop.it
Chasqui-1 amateur radio satellite deployed

http://t.co/3fcXsuQIQZ
Russ Roberts's insight:

The latest update from the Radio Society of Great Britain (RSGB) on the recent launch of the Peruvian Chasqui-1 amateur radio satellite from the International Space Station (ISS).  Experiments on board include cameras that work by visible and infrared light.  The satellite also carries an amateur radio beacon transmitting on 437.025 MHz, using either 1200 bps AFSK or 9600 bps GMSK.  Aloha de Russ (KH6JRM).

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10 Most Common Power Disturbances That Make Our Life Difficult | EEP

10 Most Common Power Disturbances That Make Our Life Difficult | EEP | KH6JRM's Amateur Radio Blog | Scoop.it
Deviation from sinusoidal form at the nominal voltage level is actually a power quality issue or power disturbance - overvoltage, undervoltage, sag

Via David Hall
Russ Roberts's insight:

Thanks to reporter David Hall for this fascinating report from the electrical-engineering-portal on the most common causes of power disturbances "that make our lives difficult."  Among the main culprits are:  overvoltage, undervoltage, swell, sag, interruptions, notch, transients, flicker, harmonic distortion, and electrical noise.  Excellent, well-explained tutorial.  Aloha de Russ (KH6JRM).

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Amateur Radio World Castles Award - Southgate Amateur Radio Club

Amateur Radio World Castles Award
Southgate Amateur Radio Club
... - Dragan YT2KID will be active 23rd August 2014 from Stalac Fortress, Todorova Kula Tvrdava, WCA: YU-00022 and on 24th of August 2014 from Bedem Castle, village Maskare - Varvarin.
Russ Roberts's insight:

Thanks to Andrew (RN1CW) for some of the stations in the Russian Federation participating in the Amateur Radio World Castle Award.  Stations of interest include YT2KID/P to the Stalac Fortress and Bedem Castle and UR2LM/P to Slavayanskiy Val, Limanskaya Fortress and Effremovskaya Fortress.  Aloha de Russ (KH6JRM).

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Amazon.com: Ham It Up v1.2 - NooElec RF Upconverter For Software Defined Radio. Works With Most SDRs Like Funcube, RTLSDR (RTL2832U with E4000, FC0013 or R820T Tuners); MF/HF Converter With SMA Jac...

Amazon.com: Ham It Up v1.2 - NooElec RF Upconverter For Software Defined Radio.
Russ Roberts's insight:

This item from amazon.com may be useful for those amateur radio operators who own Software Defined Radios (SDR).  The price seems reasonable--$54.95 with free shipping.  Be sure to inquire before you buy.  Aloha de Russ (KH6JRM).

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FCC Proposes to Fine CBer $14,000 for Not Permitting Station Inspection

FCC Proposes to Fine CBer $14,000 for Not Permitting Station Inspection | KH6JRM's Amateur Radio Blog | Scoop.it
The American Radio Relay League (ARRL) is the national association for amateur radio, connecting hams around the U.S. with news, information and resources.

Via David Hall
Russ Roberts's insight:

Thanks to reporter David Hall for this story. Apparently, the FCC is getting serious about malicious interference to electronic equipment and licensed users of the rf spectrum.  This time, the culprit is a two-time offender using a citizen's band transmitter.  According the FCC, Tommie Slater was fined $14,000 for interfering with a neighbor's "home electronic equipment."  Slater refused to have his station inspected by FCC personnel.  Slater was also caught doing the same thing back in 2004, when he was cited "for using a  non-certified transmitter during restricted hours the commission had imposed following interference complaints."  Slater has 30 days to respond to the FCC inquiry.  Some people never seem to learn.  Aloha de Russ (KH6JRM).

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How to Build a Delta Loop Antenna.

A quick guide to building a simple delta loop antenna for 20 meters.

(http://www.youtube.com/watch?v=QJl359x6K_1).

Russ Roberts's insight:

I came across this article and video while I was searching for loop antenna ideas at my QTH.  Excellent presentation by Hiram Vazquez (WV2H), covering how to build a 20-meter delta loop and how to make a simple Q match for the antenna.  The Q match will make the antenna resonant at 50 ohms at the feedpoint.  According to Vazquez, the delta loop is bidirectional, offers some gain over a dipole (about 1.2 dB), is easy to build, and is inexpensive. Vazquez built his 20 meter delta loop in March 2012 and has worked 215 DXCC stations, with 100 watts.  This looks like a simple, effective antenna for your backyard.  I've used delta loops in the past and have found them quiet and easy to tune.  To obtain multiband use, use 300 ohm tv twin lead or 450 ohm ladder line into a balanced tuner.  If you lack a balanced tuner, feed the ladder line into a 4:1 balun and run a short length of 50 ohm coaxial cable from the balun to your antenna transmatch (tuner).  Aloha de Russ (KH6JRM).

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Dave Raycroft's ICPO Bulletin, 22 August 2014.

Get ready for some good DX hunting over the next two months.

Russ Roberts's insight:

Source:  Southgate Amateur Radio Club.

 

The current update of Dave Raycroft's ICPO (Islands, Castles & Portable Operations) is ready for download.  As usual, Dave has an exhaustive list of current and upcoming DX catches. Some of these portable operations are from relatively rare areas of the world.  Included in this list are operations from Tioman Island (AS-046), Svalbard (EU-026), Belodymovsky State Wildlife Area (WWFF UN FF-079), Hong Kong (AS-006, and Insula Fericirii (EU-191.  Have fun!  Aloha de Russ (KH6JRM).

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