Category Archives: Articles

Dan Robinson explores the current administration’s “Big Fail” at the BBG/VOA

View of the Capitol Building from the roof of the Voice of America on 330 Independence Ave., S.W.

SWLing Post readers are likely aware that contributor, Dan Robinson, is the former White House, Congressional and foreign correspondent for the Voice of America.

Dan has just published a two part article on the Center on Public Diplomacy website exploring how the effectively the current US administration has been at restructuring and resolving inherent issues at the BBG/VOA.

Click here to read Part I

Click here to read Part II

I encourage you to read his full article and please direct your comments to the original post on the Center on Public Diplomacy website.

New Crosley Exhibit at VOA Museum

Many thanks to SWLing Post contributor, Dave, who shares this article by John Kieswetter at WVXU:

Maybe you have one of those refrigerators with a TV screen built into the door… Or you like reading news stories from TV/radio stations on your tablet or phone…

Well, WLW-AM founder and Cincinnati industrialist Powel Crosley Jr. was way ahead of you. W-A-Y ahead of you.

Just look around at the new Powel Crosley Jr. exhibit some weekend at the National Voice of America Museum of Broadcasting on Tylersville Road in West Chester Township. (For the first time, the museum is open 1-4 p.m. every Saturday and Sunday, instead of just once a month.)

In the late 1930s – 80 years ago, before the advent of television – Crosley manufactured Shelvador refrigerators with an AM radio in the door. His Shelvador was unique too – he bought the patent to have the only refrigerator with shelves on the door for years. The VOA has a Model No. 1 Shelvador which needs to be restored before put in the display.

In 1939, Crosley marketed the “Reado,” essentially a home facsimile machine that printed out news, weather and sports on a scroll about the width of toilet paper.[…]

Continue reading the full article at WVXU.

The 1770 solar storm that turned the skies red for a week

(Source: Wired UK via Mark Hirst)

Records kept by people living in Korea, China and Japan in 1770 have revealed evidence for the longest geomagnetic storm in recorded history

Almost 250 years ago, for over two weeks, the skies above parts of Asia lit up in what looked like a burst of fiery red. Those who saw the strange phenomenon kept notes of the event, and now it has been identified as potentially the longest geomagnetic storm ever recorded.

A dim red sky reported to have been observed between the September 16 to 18, 1770 in East Asia was considered one of history’s greatest geomagnetic storms. But now, new materials have come to light suggesting the storm lasted much longer, for nine nights, and covered an area twice as large as originally thought.

A group of Japanese scientists led by Hisashi Hayakawa from Osaka University studied hundreds of historical records dating between September and October 1770, including government records and people’s personal diaries. Using these records, they were able to piece together what happened during the event, and link this to sunspot drawings from the time.[…]

Continue reading at the Wired UK website.

Thanks for the tip, Mark–fascinating!

Of course, I’ve read in-depth information about the Carrington Event, but was completely unaware of the 1770 event.  I’ve always said the biggest EMP threat will come from our local star. Frankly, it’s just a matter of time.  I hope we’re ready!

SDR pioneer Dr. Vanu Bose dies at 52

Photo credit: Vanu Inc.

(Source: Southgate ARC)

Software Defined Radio pioneer Dr. Vanu Gopal Bose passed away on November 11, 2017 aged 52

In 1998 he founded Vanu Inc. which pioneered the commercialization of software-defined radio and was the first company to receive FCC certification of a software-defined radio in 2004.

The firm’s technology, which grew out of Bose’s graduate research at MIT, increases the role of software in operating the radio-based component of wireless communications networks, including those used for cellphone communications.

His company had recently deployed over 40 Community Connect base stations in Puerto Rico to provide cellular service in the wake of two devastating hurricanes.

Read the Boston Globe story
http://www.bostonglobe.com/metro/2017/11/12/vanu-bose-pioneer-cellular-wireless-infrastructure-dies/mK9MjcOEiuPIOovhCGUHFJ/story.html

“Virtual Radios” by Vanu Gopal Bose, et al 1998. One of the original MIT SpectrumWare papers
https://archive.org/download/VirtualRadios/VirtualRadios-VanuBose.pdf

2003 Guardian newspaper article Radio active revolution
https://www.theguardian.com/technology/2003/jul/10/onlinesupplement2

Connecting the last billion
https://www.technologyreview.com/s/609009/connecting-the-last-billion/

Download the ARRL review of the Icom IC-R8600

Many thanks to SWLing Post contributor, Dave Zantow (N9EWO), who notes that the recent ARRL review of the Icom IC-R8600 is available as a free download via Icom America.

Click here to download (PDF).

Note that Dave continuously updates his own review of the IC-R8600 as well.

Thanks for the tip, Dave!