Monday, October 14, 2019

Ham Radio and EMP. Post 2022.


If you can't see the video, please insert this title URL into your browser search box: https://www.youtube.com/watch?v=7PR2ExR7mX0.

In our last post, I briefly review an article on Extreme Solar Events which could impact your neighborhood, home, and amateur radio station.  If Coronal Mass Ejections (CME) are sufficiently powerful, massive parts of our communications infrastructure could be rendered unusable.

One of the unfortunate results of a "Carrington Event" would be EMP (Electromagnetic Pulse),which could produce serious damage to your home, including your ham radio station or any other solid state device.

In this video from Stan Gibilisco (W1GV) we get a good overall view of EMP, what it can do to our digital lives, and how we can mitigate some of the serious issues caused by EMP.

One of the easy ways to protect your radio equipment would be to store your transceivers (HF/VHF/UHF), "tuners", and electronic tools in a "Faraday Cage."

Here's an excellent article from "PC Magazine" that will help you design and build an effective "Faraday Cage" for your equipment:

pcmag.com/article/335782/how-to-make-your-own-faraday-cage.

Why not take steps to protect your equipment now before the next solar storm becomes an unpleasant reminder?

For the latest Amateur/Ham Radio news and information, please visit these websites:

http://www.HawaiiARRL.info.
http://www.arrl.org.
http://www.blubrry.com/arrlaudionews/
https://oahuarrlnews.wordpress.com.
https://hamradiohawaii.wordpress.com.
https://bigislandarrlnews.com.
https://www.eham.net.
http://www.southgatearc.org.

Thanks for joining us today.

Aloha es 73 de Russ (KH6JRM).

Sunday, October 13, 2019

Protecting communications from the next Carrington Event


Protecting communications from the next Carrington Event. Post 2021.
Source:  https://www.universetoday.com/143677/power-grids-and-satellites-are-more-at-risk-from-extreme-solar-storms-than-we-thought/
Accessed on 14 October 2019, 0450 UTC, Post 2021.
Please click the above link to read the full story.

Summary:

Most radio amateurs have heard about the devastating effects of the 1859 Carrington Event which destroyed much of the world's rudimentary telegraph systems of that time. 

A renewed study of that solar event has painted a grim picture of what a similar event could do to our modern world, which is so dependent on sensitive digital devices.  Extreme solar storms and coronal mass ejections could  make many of our solid-state devices inoperable.  The threat to our health care and transportation infrastructure would be severe.

Scientists and researchers studying the Carrington Event believe similar solar outbursts occuring in 1872, 1909, 1921, and 1989 were almost as strong as the original 1859 disturbance.  In fact, the 1989 coronal mass ejection crippled part of Quebec, Canada's electric grid, leaving many of our northern neighbors without power for several hours.

In this article from "Universe Today", we get a renewed picture of what awaits us if we don't do something to "harden" and protect our power grid, communications infrastructure, and medical care systems.

According to this sobering article, there are a few ways to begin the protection phase of our digitally-connected society:

"There are a variety of ways to protect things like transmission lines form intense solar storms. Capacitor banks, Faraday cages, and special dampening devices could all help. But none of them are a perfect solution, and one 2017 study suggested it could cost up to $30 billion dollars just to protect the power-grid in the USA.
The ESA is considering a LaGrange Mission which would give us more advance notice of dangerous CMEs. Image Credit: ESA/A. Baker, CC BY-SA 3.0 IGO
The ESA is considering a LaGrange Mission which would give us more advance notice of dangerous CMEs. Image Credit: ESA/A. Baker, CC BY-SA 3.0 IGO
Some scientists have floated the idea of a massive magnetic shield between the Earth and the Sun. Sitting at the Earth-Sun LaGrange Point 1, the shield would offer the same type of protection that the Earth’s magnetic field already does, but more of it. But that’s just an idea at this point.
In the mean time, the best bet is to know when a storm is coming and to shut down the power system in hopes of minimizing the damage. Future missions like the ESA’s LaGrange Mission might help with that. As far as satellites and communication systems go, protecting them is a work in progress, and nobody seems to have an answer, yet."
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How well is your ham station, your home, and neighborhood protected against future Carrington Events?  Do you have backup power?  Is your radio equipment protected? Do you have sufficient emergency supplies, including water, food, medical supplies, and sanitary disposal devices to survive the loss of power grids, internet services, and communications?
Something to think about.
Thanks for joining us today.
Aloha es 73 de Russ (KH6JRM).




An All-Band Antenna for small spaces. Post 2020

Here's an interesting idea from Ed (KH2I) and the AH2G Club Station in Hagatna, Guam. 

Ed has made a simple vertical dipole antenna that covers all amateur radio bands from 80 meters through 10 meters.  The antenna is easily made with locally available materials.

Here's the complete antenna description:

AN ALL-BAND ANTENNA

FOR SMALL SPACES

Whether for portable, camping, or just for a small back yard, here is an antenna that is quick and easy to erect, and will get you on ALL bands from 80 through 10m.  

THE VERTICAL DIPOLE

What is so special about this antenna?
  • Low cost to construct
  • Single lightweight pole required
  • Ground-Independent  (does NOT requires radials)
  • Efficiency rivals a good vertical with 32 radials (except on 80m)
  • With the right matchbox, it covers 80 through 10m


If you want more information about this antenna, please contact Ed at:

AH2G
P.O. Box 445
Hagatna, GU, 96932-0445

Thanks for joining us today.

Aloha es 73 de Russ (KH6JRM).

Saturday, October 12, 2019

HF tape measure horizontal dipole antenna. Post 2019.


If you can't see the video, please insert this title URL into your browser search box: https://www.youtube.com/watch?v=PiU6x9aZT7A.

An amazing amount of materials can be used to make HF antennas.  In this video from NC4FB and KI4PMT, we see an old VHF/UHF construction process applied to the amateur radio HF bands--namely, using inexpensive steel tape measures to make horizontal dipole elements.

According the description of this innovative HF antenna, the tape measure variant performs well on all amateur bands between 6 and 40 meters.

For the latest Amateur/Ham Radio news and information, please visit these websites:

http://www.HawaiiARRL.info.
http://www.arrl.org.
http://www.blubrry.com/arrlaudionews/
https://oahuarrlnews.wordpress.com.
https://hamradiohawaii.wordpress.com.
https://bigislandarrlnews.com.
https://www.eham.net.
http://www.southgatearc.org.

Thanks for joining us today.

Aloha es 73 de Russ (KH6JRM).

Friday, October 11, 2019

My low cost 10 meter antenna DIY. Post 2018.

https://www.youtube.com/watch?v=o74VTSaBGwU
If you can't see the video, please insert this title URL into your browser search box: https://www.youtube.com/watch?v=o74VTSaBGwU.

How would you like to build a cheap, effective, and easy-to-assemble 10 meter mobile antenna?  You can if you follow the resourceful tips outlined in this excellent video from the "HamRadioConcepts" Video Channel.

The antenna was made from about $3.00 worth of parts from the 2015 Melbourne, Florida Hamfest.  The original 20 meter Hamstick was modified for the 10 meter amateur radio band at almost no cost.

Antenna design and experiments are part of the challenge and fun of Amateur/Ham Radio.  You don't need lots of cash to enjoy the "radio art" if you're willing to use your imagination and a little creativity.

"Ham Radio Concepts" says the intent of the project "is to show the newcomer or the seasoned operator WHY it is fun to experiment and homebrew. This is what the hobby is all about. You don't need a ton of money, just a little bit of effort and some ingenuity, and the end result is so much more rewarding. 73, please subscribe, thumbs up, and check out my other videos.."
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Thanks for joining us today.

Aloha es 73 de Russ (KH6JRM).