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Copyright © 2000-2024 R. C. Mazur, VA3ROM
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Updates
 
November 15, 2024
Added support material for my next TCA (Nov-Dec 2024) column "The Road to Radio—Part 1" (RM066). See Radio Magic
 
November 8, 2024
Found another Swiss army PDF toolbox website & standalone program (blasingly fast) for doing almost anything imagineable to PDF files with no limits& it's free! See PDF24 Creator.
 
SSTV on the ISS transmissions scheduled to begin on Monday, November 11 at 11:50 UTC & end Monday, November 18 at 13:40 UTC. They will be paused during scheduled school contacts on November 15 &16. Downlink transmissions will be on 145.800 MHz mode PD180. See ARISS-USA News Blog.
 
October 18, 2024
Added new link to the awesome Online OCR website. If you have scanned (as graphics not plain text) PDF files & need to convert them to text then this is the free tool (50 pages) for you! It also has three subscription tiers if you need to convert more PDF pages. I have used it to convert 12th to 19th century scanned free PDF books, written in multiple languages, downloaded from various internet library archives. Those were converted by Online OCR to a Word docx (or plain text or other formats, if you prefer). Any non-English text were then translated by the commerical version of ChatGPT AI. As an Amateur Radio historian writing about radio history, I no longer have to try & figure out facts from nonsense often found on third-party websites that willy-nilly copy errors from other websites! Now I can read the actual words of the orginal authors written hundreds of years ago! Both the commerical versions of ChatGPT AI & Adobe AI can analyze text PDF files & created detailed anaylsis & summaries (saves me time & reading of 1000's of pages), which often reveals how much of what we think we know is "history" is actually someone's spin, confirmation bias, misinterpretation or misunderstanding! I use both AIs, but Adobe AI offers suggestions of the types of questions you can askeit based on the information provided in the PDF file (it can't do graphic PDF's, yet, but OCR ability should be added in the near future). ChatGPT offers three verisons of itself plus the Google Gemini & Claude AIs. But I find they get hopelessly "confused" by all the stale, erroneous or conflicting data that comes along with the actual facts located on websites in cyberspace. They can't read or analyze online documents & they can't tell fact from fiction. You have to do that for them & this can take several passes before the AIs learn enough from you about what to keep or ignore during your online session.
 
October 10, 2024
The International Space Station (ISS) will be broadcasting SSTV images from October 8th to 14th! Information can be found on the ISS Fan Club SSTV page.You can upload your images for a certificate.
 
June 25 2024
Added support material for my next TCA (Jul-Aug 2024) column "The Last Great North American Total Solar Eclipse" (RM065). See Radio Magic
 
Reedited & posted the last two series of  Snap Circuit articles "Part 3: Optical Communications" (RM061) & "Part 4: The Snapino" (RM062). See Radio Magic.
 
06 May 2024
Added support material for my next TCA (May-Jun 2024) column "First Look: The Arduino R4" (RM064). See  Radio Magic
 
22 March 2024
With the launches of two more new Russian digital weather satellites, both assigned to the same frequencies as the aging analog NOAA weather satellies on the 137 MHz band, there's just too much interference from the very wide band digital satellites so I've decided to end my NOAA satellite web page after 20 years because there's no free decoding software that can do everything using the digital birds' telemetry like the amazing WxToImg did for the analog birds. 
 
The April 8 North American total solar eclipse will soon be here, but the odds of having a clear sky view in my part of Ontario aren't in my favour, according to the climate records.
 
Fortunately, there're also several more radio monitoring options available. Here's a list of new ones published in the recent ARRL Newsletter:
 
Solar Eclipse QSO Party (SEQP)
https://hamsci.org/seqp-faqs
 
Gladstone Signal Spotting Challenge
https://hamsci.org/gssc-faqs
 
Medium Wave Recording Event
https://hamsci.org/mw-recordings
 
Time Delay of Arrival (TDOA) Event
https://hamsci.org/tdoa-event-2024
 
Grape 1 Doppler Receiver Project
https://hamsci.org/grape1
 
01 March 2024
Added support material for my next TCA (Feb-Mar 2024) column "The Great American Annular Solar Eclipse" (RM063). See Radio Magic
 
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