Many thanks to SWLing Post contributor, Eric (WD8RIF), who writes:
This came in the most recent ARRL Contest newsletter:
The Sun, The Earth, and Near-Earth Space: A Guide to the Sun-Earth System by J. A. Eddy is a readable and accessible textbook that explains the dynamics of the Sun and its interaction with the Earth’s ionosphere. It’s available as a free download, courtesy of NASA and the International Living with a Star Program. Anyone using the ionosphere as a medium for radio wave transmission and wants to better understand propagation should find this book of interest. (Ward, N0AX)
Thank you for the stellar tip, Eric!
(Source: ARRL News)
The FCC has issued a Notice of Apparent Liability (NAL) proposing to fine Jerry W. Materne, KC5CSG, of Lake Charles, Louisiana, $18,000 “for apparently causing intentional interference and for apparently failing to provide station identification on amateur radio frequencies,” the FCC said.
“Mr. Materne was previously warned regarding this behavior in writing by the Enforcement Bureau and, given his history as a repeat offender, these apparent violations warrant a significant penalty,” the FCC said in the NAL, released on July 25.
In 2017, the FCC received numerous complaints alleging that Materne was causing interference to the W5BII repeater, preventing other amateur licensees from using it. In March 2017, the repeater trustee banned Materne from using the repeater.
Responding to some of the complaints, the Enforcement Bureau issued a Letter of Inquiry (LOI), advising Materne of the allegations and directing him to address them. Materne denied causing interference but admitted to operating simplex on the repeater’s output frequency. In June 2017, the FCC received an additional complaint alleging that Materne had repeatedly interfered with an attempted emergency net that was called up as Tropical Storm Cindy was about to make landfall. The complaint maintained that Materne “repeatedly transmitted on the repeater’s input frequency, hindering the local emergency net’s ability to coordinate weather warnings and alerts on behalf of the National Weather Service,” the FCC said in the NAL.
Local amateurs were able to track the interfering signal to Materne’s residence and confirmed their findings to the FCC, prompting a Warning Letter advising Materne of the complaint and pointing out that his behavior “as described in the complaint would be a violation of Section 97.101(d) of the Commission’s rules.”[…]
Click here to read full story at the ARRL.
(Source: Southgate ARC)
Over-the-horizon communication on Mars
ARRL highlights a post by The Space Weather Woman, Dr. Tamitha Skov, that notes the role amateur radio technology could play in over-the-horizon radio communications on Mars
I am still smiling at the huge response I got to a post I put up on Twitter this week. A newbie to our Space Weather community dared to talk about Amateur Radio as if it were an outdated hobby– whoops, bad idea. I gently educated him.
In doing so, I roused many radio amateurs and emergency communicators, who added their own comments and talked about their own personal experiences in the field. It was very gratifying.
What I hadn’t expected, however, was the strong interest in the concept that amateur radio will be critical to establishing over-the-horizon radio communications on planets like Mars in the near future.
This idea brings me back to how we managed to communicate over long distances many decades before we had satellites, internet or cellular networks. In terms of wireless communications on Earth, we were very much in the same place back in the early 1900s that we find ourselves in now when we think about colonizing Mars.
Yet few people realize that despite all our advanced technology, we can’t bring a cell phone to Mars. We will need to fall back on our ‘old ways’ of doing things when it comes to communicating on other planets. Isn’t it funny how ‘old’ things become ‘new’ again?
Space Weather Woman
Dr. Tamitha Skov’s latest video report:
Click here to view on YouTube.
Many thanks to SWLing Post contributor, Dave Cripe (NM0S) for sharing the flyer above announcing the first annual Midwest STEM TechFest. This looks like an exciting event and frankly where I believe where most amateur radio conventions should be investing their time: in recruiting future engineers and makers! Well done!
Alexanderson alternator in the SAQ Grimeton VLF transmitter.
(Source: ARRL via Mike Hansgen)
Low-frequency World Heritage Grimeton Radio Station, SAQ, will transmit from Sweden on May 1 as participation in the European Route of Industrial Heritage’s “Work It Out” observance.
“As part of the event, we plan for the first SAQ transmission since 2016,” said Lars Kalland, SM6NM. The transmitter start-up will begin at 0930 UTC, with the transmission to follow on 17.2 kHz CW at 1000 UTC.
A live video stream of the event will be available. Kalland said no QSL cards will sent, nor will SAQ post a list of reports, but SAQ does invite brief listener reports via e-mail.
“We sincerely hope that all the SAQ transmission on 17.2 kHz will go as planned,” Kalland said. “But, as always, there is a reservation that the transmission [may be] cancelled on short notice.”
Click here to read on the ARRL website.