AmateurRadio.com

Vibroplex Bug QSO

The key lineup with the Bug in the center

Ten-Tec Eagle 599

The QSO

Richard Carpenter, AA4OO, is a regular contributor to AmateurRadio.com and writes from North Carolina, USA. Contact him at [email protected].

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

 

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9. I then for the heck of it updated the BIOS as well. 

Mike Weir, VE9KK, is a regular contributor to AmateurRadio.com and writes from New Brunswick, Canada. Contact him at [email protected].

Confirmed DXCC entity #332 arrived in the mail last week. With a total of 339 active DXCC entities, this leaves just seven to go.




Although I had worked Tunisia a couple of years ago on 15m, I was never able to get the contact confirmed. In spite of sending an SAE and green stamps for postage, 3V8HQ's several promises of his card 'soon to be mailed', proved to be hollow.

The contact with 3V8HQ was my first and only one with Tunisia, since being licenced in 1963. The low level of ham radio activity from 3V8 combined with the challenges of VE7 to Meditteranean Africa propagation, made it a difficult one to work.

courtesy: https://www.google.ca/maps

I was excited to see one other station becoming active this past year, club station 3V8SS ... but it seemed that whenever they were on (very early out on the west coast), they were on RTTY and not on CW. During the past recent ARRL CW DX test, I noticed that they were active ... a rare event and maybe another opportunity to work Tunisia on CW once again. As luck would have it, propagation was good enough to make the QSO, as my old (twice refurbished) Cushcraft A3S tribander came through once again.

My present confirmed list sitting at 332, combined with my 10 confirmed 'deleted' entities, brings the overall confirmed total to 342. The seven remaining entities will be very difficult, if not impossible, unless I live to be 150. They are:

            FT/G, TO - Glorioso
            HK0 - Malpelo Island
            KP5 - Desecheo Island
            P5 - N. Korea
            SV/A - Mt. Athos
            Z8 - S. Sudan
            ZL9 - Auckland / Campbell Islands

A couple of these have been active in past recent years ... for some, I was asleep at the switch and for others, I was away travelling at the time. With solar conditions heading downhill quickly, and possibly staying there for many many years, the prospects of working these last seven is looking pretty bleak.

On the other hand, my favorite winter band (160m) should continue to improve. Last week also brought a new DXCC QSL for me on that band, A35T in Tonga, bringing my confirmed total on that band to 157.

Getting new entities from here on out will be increasingly challenging ... I guess I need to remember, that if it was easy, it just wouldn't be any fun!



Steve McDonald, VE7SL, is a regular contributor to AmateurRadio.com and writes from British Columbia, Canada. Contact him at [email protected].

Here is this week’s space weather and geophysical report, issued 2016 Apr 11 0439 UTC.

Highlights of Solar and Geomagnetic Activity 04 – 10 April 2016

Solar activity was at very low levels on 04-05 April with low levels observed from 06-10 April as Region 2529 (N09, L=341, class/area, Eki/820 on 10 April) began its transit across the solar disk. The region emerged as a large bipolar group that produced 15 low level C-class flares during the period. The largest flare was a long-duration C2 at 09/1342 UTC, however it also produced another long-duration C1 flare at 10/0934 UTC. Other activity included a 10 degree filament eruption, centered near N18E29, that erupted beginning at approximately 10/1000 UTC. An associated CME was observed off the NE limb at 10/1100 UTC. The CME is currently being analyzed, however it is likely that little to no impacts will occur given its location and direction.

No proton events were observed at geosynchronous orbit.

The greater than 2 MeV electron flux at geosynchronous orbit was at high levels from 04-07 April with normal levels observed from 08-10 April. The highest flux value observed for the period was 3,924 pfu at 05/1605 UTC.

Geomagnetic field activity ranged from quiet to (G1) minor storm levels. Solar wind parameters were at mostly nominal levels through the period until a solar sector boundary crossing (SSBC) occurred around 07/1737 UTC. During this time, total field increased to a maximum of 13 nT while the Bz component deflected southward for approximately 8 hours reaching a maximum of -13 nT. The geomagnetic field responded with G1-minor storm levels late on 07 April through early on 08 April.

Forecast of Solar and Geomagnetic Activity 11 April – 07 May 2016

Solar activity is expected to be at low levels with a slight chance for M-class (R1-R2, Minor-Moderate) flares until Region 2529 rotates off the NW limb on 21 April. Very low levels are expected from 22 April through 03 May. Low levels are expected once again from 04-07 May with the return of Region 2529.

No proton events are expected at geosynchronous orbit.

The greater than 2 MeV electron flux at geosynchronous orbit is expected to be at high levels on 15-18, 24-28, and 30 April – 02 May due to coronal hole high speed stream (CH HSS) influence. Normal to moderate levels are expected for the remainder of the outlook period.

Geomagnetic field activity is expected to be at unsettled to active levels on 12-15, 23-26, and 29-30 April with G1-minor storm levels likely on 13-14 and 29 April due to recurrent CH HSS activity. Unsettled to active levels are also likely on 04 May due to activity associated with an SSBC.

Don’t forget to visit our live space weather and radio propagation web site, at: http://SunSpotWatch.com/

Live Aurora mapping is at http://aurora.sunspotwatch.com/

If you are on Twitter, please follow these two users: + https://Twitter.com/NW7US + https://Twitter.com/hfradiospacewx

Get the space weather and radio propagation self-study course, today. Visit http://nw7us.us/swc for the latest sale and for more information!

Check out the stunning view of our Sun in action, as seen during the last five years with the Solar Dynamics Observatory (SDO): https://www.youtube.com/watch?v=zXN-MdoGM9g

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This weekend was the monthly SKCC Weekend Sprintathon (WES), and I was really looking forward to working this.  I had hear there was lots of activity, and a great way to pick up additional SKCC member QSO’s as I work towards my Centurion (100 contacts).

Map of contacts – most were on 40 meters (PR was on 15 meters, only 15 meter contact) – map by http://www.qsomap.org/

So I was up and at it at 7:00 AM local Saturday morning (12:00 UTC).  Long story short, the bands really stunk here in Kansas the entire weekend.  All total I probably was able to work about 8 hours of the contest.

I ended up making 24 contacts, 16 states/provinces (including Puerto Rico and France) for a total score of 774 points – all QRP at 5 watts with the KX3 and my 20/40 dipole that lays on my shingles on the roof.

I used the SKCC Logger program, and it made life really easy!

I dug out an old J-37 key that my father had, and it was a real pleasure to use!

J-37 Key – KX3 on 3D printed stand my son made for me!

I added 16 new SKCC numbers, so right now I am sitting at 59 – just 41 more to go for my Centurion.

I will definitely be back next month!  This was really fun, and if you’re worried about your CW skills, this is the perfect event for you.  Nice and slow – not the break-neck speed of most CW contests!

Burke Jones, NØHYD, is a regular contributor to AmateurRadio.com and writes from Kansas, USA. Contact him at [email protected].

This weekend was the monthly SKCC Weekend Sprintathon (WES), and I was really looking forward to working this.  I had hear there was lots of activity, and a great way to pick up additional SKCC member QSO’s as I work towards my Centurion (100 contacts).

Map of contacts – most were on 40 meters (PR was on 15 meters, only 15 meter contact) – map by http://www.qsomap.org/

So I was up and at it at 7:00 AM local Saturday morning (12:00 UTC).  Long story short, the bands really stunk here in Kansas the entire weekend.  All total I probably was able to work about 8 hours of the contest.

I ended up making 24 contacts, 16 states/provinces (including Puerto Rico and France) for a total score of 774 points – all QRP at 5 watts with the KX3 and my 20/40 dipole that lays on my shingles on the roof.

I used the SKCC Logger program, and it made life really easy!

I dug out an old J-37 key that my father had, and it was a real pleasure to use!

J-37 Key – KX3 on 3D printed stand my son made for me!

I added 16 new SKCC numbers, so right now I am sitting at 59 – just 41 more to go for my Centurion.

I will definitely be back next month!  This was really fun, and if you’re worried about your CW skills, this is the perfect event for you.  Nice and slow – not the break-neck speed of most CW contests!

Burke Jones, NØHYD, is a regular contributor to AmateurRadio.com and writes from Kansas, USA. Contact him at [email protected].