Archive for the ‘Technology’ Category

Kickin It With the HR360 Workbench Crew – ETH077

ETH077 - HR360 Workbench Crew

If any of yall listen to the Hamradio 360: Workbench podcast then you will know the names George and Jeremy. They are the host of that podcast and some good friends of mine. Several episodes ago they talked about some miniature data radios and some uses for them. I had some questions about it so I thought what better than to do that to come on and talk about them on an episode so that yall can hear them too.

I got all my questions answered, Thanks George!

We went on to talk about their podcast and things that they had been doing and even an upcoming show topic and then wrapped it up with their thoughts on how Hamvention was this year and what they thought about the new venue.

I think we had a great conversation and I hope yall do to.

Check out the show notes for information about the episode, links to all the items that we talked about and other information. You can also listen to the episode directly on the website or on your favorite podcast listening app.

http://www.everythinghamradio.com/podcast/77

Arduino Projects for Amateur Radio with Glen Popiel – ETH072

Everything Ham Radio Podcast Logo - Arduino

Do you want to get back to the original roots of Amateur Radio? Maybe you are a new ham and you have a DIY side? Maybe you just want to try something new? There are so many things that you can do with an Arduino that cost only $4 or so! Anything from a morse code keyer to a 40m QRP CW Radio and a whole lot in between. You can even do things with an Arduino that has nothing to do with amateur radio but you will find a use for.

In this episode with talk with Glen Popiel, KW5GP the author of the ARRL published books, Arduino for Ham Radio and his new book that just came out, More Arduino for Ham Radio. He is also the author of the ham mesh networking book, High Speed Multimedia for Amateur Radio.

We had a great conversation and it made me literally go to the ARRL website and buy his new Arduino book while we were recording! Check out the show notes of this episode to listen and to get more information about what we talked about. There are also links to his books that you can go to to buy one for yourself.

Check out the show notes!

Remote Controlled Vehicles and Ham Radio, A Marriage of Two Hobbies – ETH070

Ever since I was a little kid I have loved air planes. It doesn’t matter if it Everything Ham Radio Podcast Logo - PSK31was riding in them, watching them, or flying them. Over the years, I have bought several little cheap-o toys-r-us style RC planes, I have a RC Boat, and as I’m sure most young boys, Ive had several RC Cars.

When I first got my license and found out that you could marry amateur radio with remote controlled vehicles it really got me interested. Then the questions came to mind, why would you want to marry these two hobbies? The first thing that came to mind, because of the little bit of experience with RC cars, was the frequency issues. There was many times growing up where a friend and I would have RC cars and if both our transmitters were on, they would interfere with each other.

Shortly after I started my blog, about a year before my podcast, Remote Controlled vehicles was one of the topics that I wanted to talk about in an article since about month one, but here two and a half years later, I still haven’t done anything on the topic.

Remote Control Airplanes

Two of Jason’s planes

That changed a couple weeks ago when a George with the Hamradio 360 podcast got me in contact with a friend of his that was a ham and enjoyed using RC vehicles as well.

In this episode of the Everything Ham Radio Podcast, #70, we talk with Jason Howard, K6DNG. We talk about his experiences with using RC Planes and Drones and how you can use ham radio to control your vehicles with. Even though with the way technology is now, it really isn’t necessary.

http://www.everythinghamradio.com/podcast/70

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Thirty Minutes of Dazzle: The Sun in UHD 4K by SDO (NASA)

Take a front-seat view of the Sun in this 30-minute ultra-high definition movie in which NASA SDO gives us a stunning look at our nearest star.

This movie provides a 30-minute window to the Sun as seen by NASA’s Solar Dynamics Observatory (SDO), which measures the irradiance of the Sun that produces the ionosphere. SDO also measures the sources of that radiation and how they evolve.

SDO’s Atmospheric Imaging Assembly (AIA) captures a shot of the sun every 12 seconds in 10 different wavelengths. The images shown here are based on a wavelength of 171 angstroms, which is in the extreme ultraviolet range and shows solar material at around 600,000 Kelvin (about 1 million degrees F.) In this wavelength it is easy to see the sun’s 25-day rotation.

The distance between the SDO spacecraft and the sun varies over time. The image is, however, remarkably consistent and stable despite the fact that SDO orbits Earth at 6,876 mph and the Earth orbits the sun at 67,062 miles per hour.

Scientists study these images to better understand the complex electromagnetic system causing the constant movement on the sun, which can ultimately have an effect closer to Earth, too: Flares and another type of solar explosion called coronal mass ejections can sometimes disrupt technology in space. Moreover, studying our closest star is one way of learning about other stars in the galaxy. NASA’s Goddard Space Flight Center in Greenbelt, Maryland. built, operates, and manages the SDO spacecraft for NASA’s Science Mission Directorate in Washington, D.C.

Charged particles are created in our atmosphere by the intense X-rays produced by a solar flare. The solar wind, a continuous stream of plasma (charged particles), leaves the Sun and fills the solar system with charged particles and magnetic field. There are times when the Sun also releases billions of tons of plasma in what are called coronal mass ejections. When these enormous clouds of material or bright flashes of X-rays hit the Earth they change the upper atmosphere. It is changes like these that make space weather interesting.

Sit back and enjoy this half-hour 4k video of our Star!  Then, share.  🙂

73 dit dit

 

Stunning Ultra-HD View; Sun Timelapse 2015 NASA/SDO

This video is ten minutes of coolness.

This cool time-lapse video shows the Sun (in ultra-high definition 3840×2160 – 4k on YouTube) during the entire year, 2015. The video captures the Sun in the 171-angstrom wavelength of extreme ultraviolet light. Our naked, unaided eyes cannot see this, but this movie uses false-colorization (yellow/gold) so that we can watch in high definition.

The movie covers a time period of January 2, 2015 to January 28, 2016 at a cadence of one frame every hour, or 24 frames per day. This timelapse is repeated with narration by solar scientist Nicholeen Viall and contains close-ups and annotations. The 171-angstrom light highlights material around 600,000 Kelvin and shows features in the upper transition region and quiet corona of the sun.

The first half tells you a bit about the video and the Sun, and you can see the entire year 2015 rotate by.  The second half is narrated by a NASA scientist.  It is worth watching all ten minutes.  And, then, sharing!

The sun is always changing and NASA’s Solar Dynamics Observatory is always watching.

Launched on Feb. 11, 2010, SDO keeps a 24-hour eye on the entire disk of the sun, with a prime view of the graceful dance of solar material coursing through the sun’s atmosphere, the corona. SDO’s sixth year in orbit was no exception. This video shows that entire sixth year–from Jan. 1, 2015 to Jan. 28, 2016 as one time-lapse sequence. Each frame represents 1 hour.

SDO’s Atmospheric Imaging Assembly (AIA) captures a shot of the sun every 12 seconds in 10 different wavelengths. The images shown here are based on a wavelength of 171 angstroms, which is in the extreme ultraviolet range and shows solar material at around 600,000 Kelvin (about 1 million degrees F.) In this wavelength it is easy to see the sun’s 25-day rotation.

During the course of the video, the sun subtly increases and decreases in apparent size. This is because the distance between the SDO spacecraft and the sun varies over time. The image is, however, remarkably consistent and stable despite the fact that SDO orbits Earth at 6,876 mph and the Earth orbits the sun at 67,062 miles per hour.

A blending of an entire year, 2015, of the Sun as seen by NASA SDO at EUV 171 Angstroms

A blending of an entire year, 2015, of the Sun as seen by NASA SDO at EUV 171 Angstroms

Why This is Important

Scientists study these images to better understand the complex electromagnetic system causing the constant movement on the sun, which can ultimately have an effect closer to Earth, too: Flares and another type of solar explosion called coronal mass ejections can sometimes disrupt technology in space. Moreover, studying our closest star is one way of learning about other stars in the galaxy. NASA’s Goddard Space Flight Center in Greenbelt, Maryland. built, operates, and manages the SDO spacecraft for NASA’s Science Mission Directorate in Washington, D.C.

For us radio enthusiasts, the study of the Sun helps us understand the dynamics of radio signal propagation.  And, that aids us in communicating more effectively and skill.

Thanks for sharing, voting, and watching.  More information and live Sun content can be accessed 24/7 at http://SunSpotWatch.com

You can also get the Space Weather and Radio Propagation Self-study Course at http://SunSpotWatch.com/swc

 

For those of us who are less technically inclined.

You may be like me. I've been at this hobby for a while now. I've built a ton of kits, made a bunch of antennas, passed all my exams with no problem. I was in the electronics repair biz for over 20 years, trouble shooting and repairing circuit boards down to the component level. But yet, to this day, I can open up a "QRP Quarterly" or a "QST" and look at the technical articles and feel like they are "WHOOSH" - about a mile over my head.

For those of you in the same boat, I would highly recommend the contents of the You Tube channel provided and maintained by Alan Wolke W2AEW. Alan is a fellow member of the Raritan Valley Radio Club. As a VE, I've attended a couple of Ham Crams where Alan was the lead instructor - I can readily testify that Alan knows his stuff, inside and out, upside down and backwards.

Alan has "The Knack" in more ways than one. Not only is he technically gifted, but the also has the ability to take the Greek out of electronics (no offense to my friends from Greece or of Greek decent), and make difficult concepts understandable, in plain English.  And that's a pretty good talent to have when you're a Technical Specialist for Tektronics.

In addition to Alan's You Tube channel, to which I think just about every Amateur Radio op should be subscribed to, Alan gave an excellent interview to Eric on "QSO Today".  You can listen to it here - http://www.qsotoday.com/podcasts/w2aew

Now, I'm not saying that if you watch all of Alan's videos that you'll be able to instantly comprehend every technical article you read in any Amateur Radio publication. But I can tell you that more and more of the content will be understandable and that you won't be totally clueless - like I used to feel. I'm getting better, but still have a long way to go.

72 de Larry W2LJ
QRP - When you care to send the very least!

For those of us who are less technically inclined.

You may be like me. I've been at this hobby for a while now. I've built a ton of kits, made a bunch of antennas, passed all my exams with no problem. I was in the electronics repair biz for over 20 years, trouble shooting and repairing circuit boards down to the component level. But yet, to this day, I can open up a "QRP Quarterly" or a "QST" and look at the technical articles and feel like they are "WHOOSH" - about a mile over my head.

For those of you in the same boat, I would highly recommend the contents of the You Tube channel provided and maintained by Alan Wolke W2AEW. Alan is a fellow member of the Raritan Valley Radio Club. As a VE, I've attended a couple of Ham Crams where Alan was the lead instructor - I can readily testify that Alan knows his stuff, inside and out, upside down and backwards.

Alan has "The Knack" in more ways than one. Not only is he technically gifted, but the also has the ability to take the Greek out of electronics (no offense to my friends from Greece or of Greek decent), and make difficult concepts understandable, in plain English.  And that's a pretty good talent to have when you're a Technical Specialist for Tektronics.

In addition to Alan's You Tube channel, to which I think just about every Amateur Radio op should be subscribed to, Alan gave an excellent interview to Eric on "QSO Today".  You can listen to it here - http://www.qsotoday.com/podcasts/w2aew

Now, I'm not saying that if you watch all of Alan's videos that you'll be able to instantly comprehend every technical article you read in any Amateur Radio publication. But I can tell you that more and more of the content will be understandable and that you won't be totally clueless - like I used to feel. I'm getting better, but still have a long way to go.

72 de Larry W2LJ
QRP - When you care to send the very least!

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  • Matt W1MST, Managing Editor