AmateurRadio.com

While many are talking about how Solar Cycle 24 is the weakest since the Maunder Minimum (the period starting in about 1645 and continuing to about 1715 when sunspots became exceedingly rare, as noted by solar observers of the time — see this Wiki entry), there are moments when activity on the Sun strongly increases, providing brief moments of excitement.

Here is a case in point, witnessed by the Solar Dynamics Observatory (SDO; see SDO Mission) on June 7, 2011, when the Sun unleashed a magnitude M2 (a medium-sized) solar flare with a spectacular coronal mass ejection (CME). The large cloud of particles mushroomed up and fell back down looking as if it covered an area almost half the solar surface.

SDO observed the flare’s peak at 1:41 AM ET. SDO recorded these images in extreme ultraviolet light that show a very large eruption of cool gas. It is somewhat unique because at many places in the eruption there seems to be even cooler material — at temperatures less than 80,000 K.

This video uses the full-resolution 4096 x 4096 pixel images at a one minute time cadence to provide the highest quality, finest detail version possible.  The color is artificial, as the actual images are capturing Extreme Ultraviolet light.

It is interesting to compare the event in different wavelengths because they each see different temperatures of plasma.

Credit: NASA SDO / Goddard Space Flight Center

Video: http://g.nw7us.us/1aOjmgA – Massive Solar Eruption Close-up (2011-06-07 – NASA SDO)

Visit: SunSpotWatch.com

Hello, friends! Episode #118 of Linux in the Ham Shack is ready for your immediate consumption. Lots of ham radio and Linux related news in this episode, including discussion of Ham Radio Now, the sun's magnetosphere, digital contacts on 28MHz, Linux Mint, Linux news aggregation sites and more. Sit back in your easy chair, put on your headphones, and enjoy a sweet slice of podcast nirvana. Until next time...

73 de The LHS Guys

• “Save You” by Circus Underground from the EP Circus Underground, courtesy of Jamendo.
  • http://www.jamendo.com/en/track/607077/circus-underground-save-you
• “Engulfed” by Sonorant from the EP Engulfed, courtesy of Jamendo.
  • http://www.jamendo.com/en/list/a22745/engulfed-ep

“Radio Hams” do more than play with their machines. They are also invaluable in relaying vital information during times of tragedy and disaster.

Here is a mildly entertaining look at radio hams, those amateurs sending and receiving coded messages during the late thirties when films first dealt with the subject of “radio hams.” In this case, the ham operators manage to be helpful during situations of stress, using their abilities with code to help someone in distress and to seek aid for pilots flying a missing plane.

The humorous ending has the family gathered around the radio listening to someone speaking Chinese while the narrator tells us how impressed the family was to be hearing someone across the world on their radio set.

http://www.youtube.com/watch?v=bZi7LiPNMt8

This little vintage film, a rather more serious film than many of Pete Smith’s other presentations, takes a look at how ham radios can become priceless aids during emergencies. The two stories shown, one dealing with sickness, the other with a missing plane, are bookended by a humorous look at a typical three-generation family’s fascination with their ham radio.

Of course, amateur radio, or “ham radio”, is alive and doing very well, in our modern times. Using satellites, moon-bounce communications, repeater networks, as well as shortwave, mediumwave, and longwave telecommunications technology, amateur radio continues to provide emergency services in times of need, from hurricanes, tornadoes, earthquakes, and even during such times as the infamous 9/11 atrocity. But, amateur radio also breeds invention and experimentation, always at the cutting edge of science. It is a hobby worth investigating, having room for a wide-range of interests. Preppers, science lovers, experimenters, and those with a passion to meet people from all over the world by way of radio waves, all together make up the radio hobby of amateur radio.

Clayton Moore, later famous as the Lone Ranger, appears uncredited as a ship radio operator.

Directed by Felix E. Feist

Writing Credits Buddy Adler (screenplay) (as E. Maurice Adler)

Cast (in alphabetical order)

Barbara Bedford – Mrs. Crane (uncredited)
Eleanor Counts – Miss Mulligan, Jimmy’s Sister (uncredited)
Jack Daley – Pa Mulligan (uncredited)
Robert Homans – Lighthouse Keeper (uncredited)
Clayton Moore – Ship Radio Operator (uncredited)
Alonzo Price – Clyde DeVinna (uncredited)
Jason Robards Sr. – Pilot in Distress (uncredited)
Pete Smith – Narrator (voice) (uncredited)
Harry Strang – Man in Montage (uncredited)
Phillip Terry – Co-Pilot (uncredited)
Dorothy Vaughan – Ma Mulligan (uncredited)

Produced by Pete Smith – producer (uncredited)
Music by David Snell (uncredited)
Cinematography by Robert Pittack
Film Editing by Philip W. Anderson (as Philip Anderson)
Music Department Jack Virgil – orchestrator (uncredited)
Other crew Douglas Smith – technical advisor

According to https://archive.org/details/wwIIarchive this film is in the Public Domain.
Creative Commons copyright.

The Sun currently is active, with powerful, complex magnetic structures that have formed a healthy number of sunspots. We are seeing a fair number of x-ray flares, which push the 10.7-cm flux higher than we’ve seen in a while.

Sunspots and flares means better propagation in general, especially on the higher frequencies of the shortwave spectrum.  While a flare can cause a short period of “blackout” conditions (especially on the lower frequencies) on the sunlit side of the Earth, such activity is part of the positive activity that ionizes the F-region, providing for DX.

Here’s a movie of one such flare and the release of solar plasma, a release known as a coronal mass ejection (CME): At about midnight, UTC, on 6 November 2013, a moderately-strong M-class flare erupted, with a “beautiful” CME: http://g.nw7us.us/18a0QvI

(Source: SOHO/SDO/NASA)

We will see continued flare activity over the weekend, so expect great conditions on the HF bands, with momentary blackouts.  Keep up to the minute on space weather at http://SunSpotWatch.com

73 – de NW7US
Propagation Columnist, CQ Communications Magazine, Popular Communications Magazine
http://NW7US.us

New sunspot region, NOAA Active Sunspot Region Nr. 11890, far left on the solar disc, will produce flares, this week.

The Sun continues to produce sunspots, and this week looks active, too.  Expect another uptick of activity on higher HF bands such as 10 meters, as a “new” sunspot region has now rotated into full view.  It has a complex magnetic structure, so it could produce moderate and maybe strong x-ray flares.  We expect flaring activity to pick up, as a result.

With all of the recent activity, and the continued train of spots, right now, it certainly appears to be a sign of a “second” peak in the cycle.  Most cycles exhibit such double peaks.  Is this one of them in this current Sunspot Cycle 24?

Enjoy the DX!

73 de NW7US (Your CQ Magazine and Popular Communications Magazine propagation columnist)

http://SunSpotWatch.com

http://NW7US.us

The static crashes were coming more frequently now and I could see the lightning off in the distance. I had been driving since the early afternoon and only had about two hours left until I arrived home. The sun had set an hour ago but the moon was not up yet and it was dark as pitch. My headlights cut through the night. Shortly before the Autumn sunset, the clouds moved in from the west with the winds gusting against my pickup truck as I headed south. The rain was off and on, more of a nuisance than an impediment to driving.

It had been a long day of meetings and I looked forward to getting behind the wheel. My mobile setup in the pickup is simple: an IC-706MKIIG and a screwdriver antenna – just 100 watts. It was relaxing to hear the rush of white noise as the rig powered up and my screwdriver antenna spun up to a good match for 40 meters. I had enjoyed a few QSOs as I barreled down US Interstate 29. Traffic was light. After the sun set, the band started to go long and decided to drop down 75 meters. The screwdriver antenna coil whirled again, sending the whip up a bit higher.

As I slowly spun the dial, I heard a call coming just above the S5 noise level. “CQ CQ CQ, this is W0XRR, Whiskey Zero X-ray Romeo Romeo, calling CQ and listening.”

Gripping the handmike, I replied to the call, “W0XRR, this is Kilo Delta Seven Papa Juliet Quebec, KD7PJQ, the name is Scott and I am mobile, south on I-29.” Releasing the Push To Talk button, the noise rushed back to fill the cab of my pickup. The rain started to pick up, beating against the roof and windshield as I continued south.

“NI0L, Scott, fine business and thank you for answering my call. Name here is Bert, Bravo Echo Romeo Tango. My QTH is just outside of Atchison, Kansas – Atchison, Kansas. Good signal tonight, I would not have guessed you were mobile. Ok Scott, back to you.” Bert’s signal had gotten stronger and I easily copied him through the noise. His audio quality was as smooth as silk… no processing.

“Solid copy all Bert, you’ve got a solid signal tonight, started off a bit weak but has picked up to a solid 57 to 58. Ok on your QTH in Atchison. I am headed south on I-29. Just passed Hamburg and crossed into Missouri from Iowa. My destination is not far from your QTH. I am headed to Fort Leavenworth, Kansas. Back to you, Bert.” Despite the poor weather on the road, I was anticipating this was going to be a good QSO and hoped our ragchew would keeping me company on a pretty miserable evening to be out on the road.

“Well Scott, I am glad to make the contact. The weather is bad here and I imagine it is worse up your way. I was down here in my basement shack and decided I would warm up the tubes and see what I could find on the bands. Ok on Fort Leavenworth, just a bit south from here. I have not been out to the fort for a number of years but know it well. I retired sometime back and now spend a lot more time down here in the basement either spinning the dial or tinkering with one project or another. Lets hear from you, Scott. What’s put you out on the road tonight?” Bert asked.

I told Bert how I had been at a conference on Offutt Air Force Base in Nebraska. The event had ended a day early and I was trying to make my way back home to see the family and enjoy a full weekend. I explained how I had been in the Army for over two decades, had originally gotten my call when I was stationed at Fort Lewis, Washington, and had recently been transferred to Fort Leavenworth with my family. “We really enjoy the area. I am thinking about retiring there in Leavenworth. Back to you, Bert,” my index finger released the PTT.

Bert came back to me with his signal competing with the noise floor. “Fine business all, Scott. I used to be in the Signal Corps and did 30 years in the Army. Was stationed out there at the fort for my last assignment as well. Good posting there at Leavenworth. Glad to hear you and your family are enjoying it.” He told me about how he used to support an air defense unit that was stationed on Fort Leavenworth. His signal detachment was responsible for integrating all the communications for the Nike missile batteries in Kansas, Missouri, and Nebraska. We continued to trade war stories for another twenty minutes or so. Then his signal began to fade.

“I am starting to loose you Bert, so I better wrap this up. I really appreciate the QSO and to make the contact. Any chance you will be at the hamfest in Raytown coming up the Saturday after next? A few miles southeast of Kansas City? It would be a great opportunity for an eyeball QSO… and I am buying the coffee. What do you say? Back to you, Bert.” The rain was a constant downpour now, rolling across the road in front of me.

No reply was heard except for a few static crashes from the lightning. “W0XRR, this is KD7PJQ, thanks again for the contact, 73 Bert!”

I had begun making my deliberate ‘s’ pattern through the rows of gear (… and, lets be honest, junk) when I saw a table with some nice Collins gear. There was the transmitter (a 32S-3A), a receiver (75S-3C), and even a Collins 30L-1 amplifier. The bearded oldtimer manning the table had his undivided attention focused on a breakfast burrito and it took a moment for him to wash down a deliberate bite with a drink of coffee.

“Good morning. Nice Collins S-Line! These are in great shape – looks like they’ve been well cared for. You don’t see these everyday. Why are you selling them?” I heard older hams talk about these Collins rigs, but I had never seen them before.

“Good morning… sorry you caught me in the middle of breakfast. Yup, this is a nice set. Not mine actually. We’re selling it for the widow of a Silent Key. I’ve got more boxes here of his stuff. I think all the manuals are in one of these,” the gentleman said as he turned in his seat a leaned over to pull an open box towards him.

“The lady gave us a call to come and clear out the ham shack. He’d passed away last year but it took her until now to finally part with the gear. We picked everything up earlier in the week. Took us two trips. Here’s one of the manuals,” he said as he handed me the manual for the 75S-3C, yellowed with age but well cared for.

I flipped through the book, noticing the margin notes,,, and then a QSL card fell out between the pages and onto the table. I looked at the callsign on the card – …W0XRR. Bert McKenzie, Atchison, Kansas. There was a picture of a Nike-Hercules black and white missile elevated at 45 degrees on a launch platform as well as the crossed semaphore flags of the Signal Corps.

“Wait… who’s gear was this? What was the call of the Silent Key?”

“Well, there’s his QSL card!” The oldtimer pointed to the card on the table. “This gear belonged to Bert… W0XRR,” the oldtimer picked up the QSL card from the table.

“But when was it you said he passed away?” I was confused and trying to sort out what I was hearing.

The oldtimer stroked his beard as he set the QSL card down, with the image of the Nike missile towards the table. “Let’s see… it’s been a little over a year now. Bert passed away last year around the end of October.”

I looked down again at the QSL card on the table. This side of the card had the blanks for QSO specifics. There was handwriting on it and I tentatively lifted the card up to get a better look. On it I saw my call, KD7PJQ…. 75 meters, the date of our QSO (… less than two weeks ago), a 5-7 signal report… and a circle around “PSE QSL”. The card slipped out of my hand and onto the table.

Dazed, I lurched away from the table. I needed fresh air and sunlight.

The oldtimer called after me, “Hey! You interested in the rig? Go ahead and make an offer.”

Author’s note: This story is a work of fiction. Names, characters, call signs, locations, and incidents are products of the author’s imagination. Any resemblance to actual events, locales, or persons, living or dead, is entirely coincidental.