Archive for the ‘amateur’ Category

TX Factor Episode 13 is Live!

We have an autumn feast of amateur radio content in this ‘13 – lucky for some’ episode of TX Factor!

Bob gets to weigh up the latest offering of digital transceivers with Gary from ML&S.

We chat about the weather with two experts who always look on the bright side. Jim Bacon and Steve Nichols explain how we can work with the prevailing conditions to maximise our chances of good DX.

And Bob realises a boyhood dream by reliving the heady days of offshore radio on the UK’s high seas.

The Show is available to watch now at www.txfactor.co.uk

We hope you enjoy this nostalgic show.

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

 

How-To: Send Perfect Morse Code by Hand (Vintage Video)

What is the proper (and most efficient) technique for creating Morse code by hand, using a manual Morse code key? Ham radio operators find Morse code (and the ‘CW’ mode, or ‘Continuous Wave’ keying mode) very useful, even though Morse code is no longer required as part of the licensing process. Morse code is highly effective in weak-signal radio work. And, preppers love Morse code because it is the most efficient way to communicate when there is a major disaster that could wipe out the communications infrastructure.

While this military film is antique, the vintage information is timeless, as the material is applicable to Morse code, even today.

 

More about Morse code, at my website: http://cw.hfradio.org

Thank you for watching, commenting, and most of all, for subscribing. By subscribing, you will be kept in the loop for new videos and more… my YouTube Channel: https://YouTube.com/NW7US

See my Video Playlist for related Morse code vidoes:

 

 

 

 

I Need You in My Log! SKCC K3Y/0 Special Event (January 2016)

I need your help!

Come meet me on the shortwave (HF) ham bands for the Morse code (CW mode) special event, the Straight Key Century Club (SKCC) celebration, with special callsign, K3Y. During the shifts (time slots) listed below, I am the control operator as K3Y/0.

Tomas, NW7US - operating Morse code as special event station, K3Y/0I need you to make a contact with me.

This special event takes place every year during January. We celebrate the legacy of Morse code, and promote Morse code and manual creation of the code by any non-electronic (digital) device and method. Which means that we love mechanical bugs, straight keys, two ends of a wire, or any other manual device, if Morse code is generated. The Straight Key Century Club is a free membership group. The link to their website is below.

I need you to make a contact with me, during my scheduled times, listed below.

NOTE: YOU DO NOT NEED TO BE A MEMBER OF THE (free) SKCC GROUP. To get into my logbook, you meet me on my frequency, and use Morse code to communicate with me. It is painless. If you must, you can use computer-generated Morse code. Or, you can tap it out on any Morse code signalling device, like a bug, a set of paddles, or a straight key; whatever you choose to make Morse code emanate from your HF transmitter.

HOWEVER: For those of you who want to get fully immersed in the spirit of this event, you are invited to use a straight key. And, as a bonus, you may and can join the SKCC group for FREE. Then, you would have your own SKCC number. That’d be cool; we SKCC members use that number in our exchange during our QSO information exchange. But, you don’t need that. Since it is free, why not?

What is needed is simply you, getting on the shortwave band, finding me, hearing me, and responding to me with Morse code. In other words, we need to have a QSO using Morse code. I am not a fast operator, so no problem if you are not very fast. I’ll meet your speed.

In any case, here are some of the times I will be on the air as K3Y/0… please dust off your straight key, bug, paddles, whatever, and make a QSO with me. Thanks!

My current schedule:

UTC Start/End (remember, these are NOT your local times, but are the UTC (GMT) times!)


(revised times, as of edit date)


00:00 - 02:59 19-Jan-16
00:00 - 02:59 20-Jan-16
00:00 - 02:59 21-Jan-16
00:00 - 02:59 22-Jan-16
00:00 - 05:59 23-Jan-16
14:00 - 18:59 23-Jan-16
20:00 - 21:59 23-Jan-16
00:00 - 02:59 24-Jan-16
14:00 - 18:59 24-Jan-16
21:00 - 21:59 24-Jan-16
00:00 - 02:59 25-Jan-16
00:00 - 02:59 26-Jan-16
00:00 - 02:59 27-Jan-16
00:00 - 02:59 28-Jan-16
00:00 - 02:59 29-Jan-16
00:00 - 05:59 30-Jan-16
13:00 - 18:59 30-Jan-16
20:00 - 21:59 30-Jan-16
00:00 - 03:59 31-Jan-16
13:00 - 23:59 31-Jan-16

Now, what frequency will I be on?

To find out what frequency I am on:

Visit http://g.nw7us.us/sched4SKCC and look on the right side for my callsign, NW7US. I usually post my frequency of operation right after my call sign.

Typically, evening operation is 30m, then 40m, and then possibly 80m.

If you are trying to alert me to your presence, you may message me on my personal Facebook profile, under my “Tomas David Hood” profile messages, but I may not see that right away.

Here is the detail covering the K3Y operation and the SKCC group: http://skccgroup.com/k3y

73 de NW7US
dit dit

This was last year:

https://www.youtube.com/watch?v=UfRvITFpTb4

..
Tomas, NW7US - operating Morse code as special event station, K3Y/0

..

LHS Episode #159: Digital Mode Interfaces

slusbHello, dear listeners! Thank you for tuning into another episode of Linux in the Ham Shack. In this week's episode, your hosts discuss a variety of topics from 600-meter operation to Linux in cars to Star Wars. Our featured segment tonight is a look at PC-to-radio interfaces for digital mode communication. Thanks for tuning into, and hope to see you next time.

73 de The LHS Team

Get Ready: Month-long Special Event for SKCC, the 2016 K3Y Celebration

Are you ready for the annual, month-long special event by the Straight Key Century Club (SKCC)? The SKCC Group membership is free, and celebrates the longest tradition of amateur radio: Morse code. But, not just any Morse code. The manual creation of Morse code by “straight” keys means no electronic origin, only mechanical. This is a month-long event, during January 2016, modelled after the ARRL Straight Key Night.

Here’s a video that I made showing my activity as the control operator of the special event station, K3Y/0, during one of the many shifts during January (2015). K3Y is the special event callsign of the Straight Key Century Club (SKCC). The special event operates each January. I’ll be doing this again, this coming month, January of 2016.

K3Y, the Straight Key Century Club’s annual January celebration, commemorates the club’s founding in 2006 following the American Radio Relay League’s Straight Key Night. A small group of participants wanted to extend the fun of SKN throughout the year. The SKCC is the result.

For the first three years, the club’s founders used K1Y, K2A, and K3Y as the celebration’s special-event calls. But someone cleverly noticed that a 3 is nothing more than a backwards, curvaceous E. This “KEY” event has operated under the K3Y call ever since.

The on-air party is open to members and non-members alike. It runs from 0000 UTC Jan. 2 through 2359 UTC Jan. 31. It’s a great time to introduce others to the joys of hand-crafted Morse code using straight keys, bugs, and side swipers.

This year, January 2016, we’ll be fielding K3Y operators in each of the 10 US call areas, plus KH6, KL7 and KP4, along with specially scheduled stations in each of six IARU continental regions. Your QSOs with event operators in all these 19 areas will be tabulated in the Statistics section and can be confirmed with a K3Y QSL card and Sweep Certificate.

+ The SKCC website is at http://skccgroup.com

+ The K3Y special event page is http://www.skccgroup.com/k3y/

73 de NW7US​

dit dit

What is the big deal with amateur radio? What is it that you hear? (Part 1)

Shortwave Radio - spy vs spy
Shortwave radio has been a source for great sci-fi plots, spy intrigue novels, movies, and so on, since radio first became a “thing.” But, what is the big deal, really? What is it that amateur radio operators listen to?

In this video, I share some of the types of signals one might hear on the high frequencies (also known as shortwave or HF bands). This is the first video in an on-going series introducing amateur radio to the interested hobbyist, prepper, and informed citizen.

I often am asked by preppers, makers, and other hobbyists, who’ve not yet been introduced to the world of amateur radio and shortwave radio: “Just what do you amateur radio operators hear, on the amateur radio shortwave bands?

To begin answering that question, I’ve taken a few moments on video, to share from my perspective, a bit about this shortwave radio thing:

Link to video: https://youtu.be/pIVesUzNP2U — please share with your non-ham friends.

From my shortwave website:

Shortwave Radio Listening — listen to the World on a radio, wherever you might be. Shortwave Radio is similar to the local AM Broadcast Band on Mediumwave (MW) that you can hear on a regular “AM Radio” receiver, except that shortwave signals travel globally, depending on the time of day, time of year, and space weather conditions.

The International Shortwave Broadcasters transmit their signals in various bands of shortwave radio spectrum, found in the 2.3 MHz to 30.0 MHz range. You might think that you need expensive equipment to receive these international broadcasts, but you don’t! Unlike new Satellite services, Shortwave Radio (which has been around since the beginning of the radio era) can work anywhere with very affordable radio equipment. All that you need to hear these signals from around the World is a radio which can receive frequencies in the shortwave bands. Such radios can be very affordable. Of course, you get what you pay for; if you find that this hobby sparks your interest, you might consider more advanced radio equipment. But you would be surprised by how much you can hear with entry-level shortwave receivers. (You’ll see some of these radios on this page).

You do not need a special antenna, though the better the antenna used, the better you can hear weaker stations. You can use the telescopic antenna found on many of the portable shortwave radios now available. However, for reception of more exotic international broadcasts, you should attach a length of wire to your radio’s antenna or antenna jack.

Check out books on radio…

I’m on Twitter, Facebook, and YouTube.


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  • Matt W1MST, Managing Editor