Category Archives: Radio History

Smithsonian: Morse Code Celebrates 175 Years and Counting

The U.S. military J-41-A straight key (Photo by WD8RIF)

Many thanks to a number of SWLing Post readers who shared the following article from the Smithsonian Magazine:

The first message sent by Morse code’s dots and dashes across a long distance traveled from Washington, D.C., to Baltimore on Friday, May 24, 1844 – 175 years ago. It signaled the first time in human history that complex thoughts could be communicated at long distances almost instantaneously. Until then, people had to have face-to-face conversations; send coded messages through drums, smoke signals and semaphore systems; or read printed words.

Thanks to Samuel F.B. Morse, communication changed rapidly, and has been changing ever faster since. He invented the electric telegraph in 1832. It took six more years for him to standardize a code for communicating over telegraph wires. In 1843, Congress gave him US$30,000 to string wires between the nation’s capital and nearby Baltimore. When the line was completed, he conducted a public demonstration of long-distance communication.

Morse wasn’t the only one working to develop a means of communicating over the telegraph, but his is the one that has survived. The wires, magnets and keys used in the initial demonstration have given way to smartphones’ on-screen keyboards, but Morse code has remained fundamentally the same, and is still – perhaps surprisingly – relevant in the 21st century. Although I have learned, and relearned, it many times as a Boy Scout, an amateur radio operator and a pilot, I continue to admire it and strive to master it.[…]

Click here to continue reading the full article at the Smithsonian online.

RSGB Archives Film: Field Day 1947

Many thanks to SWLing Post contributor, Kris Partridge, who shares the following film from the archives of the Radio Society of Great Britain (RSGB):

Click here to view on YouTube.

Wow!  Thanks so much for sharing this film, Kris.  What an amazing number of classic rigs. Hams back then needed some serious muscle to take their gear to the field!

VOA Museum to host 75th anniversary commemoration of D-Day on June 6

(Source: Southgate ARC)

The National Voice of America Museum of Broadcasting in West Chester will host a 75th anniversary commemoration of the D-Day landing on Thursday, June 6 at 9 a.m. on the museum’s front lawn.

The event sponsored by Kehoe Financial Advisors of Cincinnati will honor the memory of WW II soldiers who participated in D-Day and the Battle of Normandy, as well as veterans of all wars.

After a color guard presentation by Veterans of Foreign Wars Post 7696 and a brief ceremony, veterans and other attendees will be invited inside the museum for free coffee, donuts and museum tours until noon.
The public is invited.

Coffee will be donated by CAVU of West Chester, with donuts provided by Kroger stores in Sharonville and on Tylervsille Road in West Chester.

“D-Day was the largest seaborne invasion in the history of the world and put Allied troops on the trajectory to win World War II,” said Ken Rieser, VOA Museum board president. “The sacrifice in human life that day alone is sobering—about 4,500 Allied soldiers and from 3,000 to 9,000 Nazi troops.”

During Operation Overlord, which occurred from the June 6, 1944 D-Day landing through August 30, 1944, when German troops retreated east across the Seine River, more than 425,000 Allied and German troops died, according to Barrett Tillman’s D-Day Encyclopedia (2014, Regnery Publishing), on www.HistoryontheNet.com. About 209,000 were estimated to be Allied troops.

“Although many of the soldiers who participated in D-Day are no longer with us, we want to commemorate their sacrifice—as well as the sacrifices of all veterans in all wars since then,” said Tom Keller of Kehoe Financial Advisors. “D-Day is a solemn day, but also an uplifting reminder of what our country can accomplish when we band together for a just cause.”

RSVPs are requested by noon on Wednesday, June 5 for the D-Day commemoration at [email protected] to ensure adequate food and beverages.

Photo Gallery: Stephen makes a pilgrimage to the Duga site

Many thanks to SWLing Post contributor Stephen Cooper who shares photos from his recent visit to the Duga Soviet Union era over-the-horizon (OTH) radar system near Chernobyl.

The following photo gallery contains images of the antenna, control room, training room and server room. Click on the thumbnails below to enlarge images and browse:

What an amazing site, Stephen! Thank you for sharing your photo tour with us.

Readers: Stephen is also an application developer and the kind fellow behind Shortwave.am, Interval Signal Ringtones for Android, and the Shortwave Radio Schedules app. Check them out!

Photo Tour: The Edward R. Murrow Transmitting Station

Yesterday, I posted a photo and asked if you guess where I was when I took the shot.

Those of you who guessed the Edward R. Murrow Transmitting Station (formerly, “VOA Site B”) near Greenville, North Carolina, were absolutely correct!

My buddy, John Figliozzi, gave a presentation about NASWA and the Winter SWL Fest at the NASB (National Association of Shortwave Broadcasters) which was held in the Raleigh area, May 9th and 10th. Due to a conflict, I was not able to attend the NASB meeting this year, but I did arrive at the conference hotel late Thursday where I met a handful of attendees. I had previously invited John to join me on the station tour, and he was quite happy to do so!

Macon Dail (WB4PMQ), the transmitting station’s Gold Medal award-winning Chief Engineer, made time to give us a tour Friday, May 10, 2019.

And now, on to the photo tour of this remarkable facility.  My inclination is to caption each photo…but I know if I attempt this, I won’t post this gallery for several months!  Instead, I’ll roughly divide the photos by the various sections of the site. Note, however, that there are more than one hundred photos in this detailed post––to decrease its length, some of the photos have been placed in clickable thumbnail galleries. Those of you who receive the SWLing Post as an email digest, I would strongly encourage you to view this post directly on our website, so all of the gallery images will appear.

Enjoy!

Station entrance, lobby, and library

The Front Lobby

In this photo, Macon is showing John one of the notebooks, which is chock-full of reception reports from listeners. This notebook, as you can see, is prominently displayed in the front lobby.

We found our friend Rich D’Angelo in the stack of reception reports.

In a mezzanine above the control room, there is a space that houses a library, a presentation/classroom area, and even a small workout/fitness room.

View into the control room from the mezzanine.

Control room

     

Transmitters

 

Tubes glowing in the active GE transmitter!

Very high voltage in this power room for the GE transmitters.

Installing new transmitters

Macon and his team are in the process of installing modern transmitters sent from other IBB sites. As you might imagine, this is a tedious process, and requires highly-skilled technicians.

 

 

Power

Antenna switching bay and feed lines

In this photo, we’re looking straight down a 50 kW feed line in conduit which leads to the switching bay. Normally, this would not be accessible, but this line is being built for a new transmitter.

The antenna switching bay is truly massive…

Antenna farm

View from the observation tower

Wow, what a tour…

John and I enjoyed our in-depth tour of the Edward R. Murrow Transmitting Station! The staff, as always, were incredibly welcoming and accommodating.

I believe this was my fourth tour; nonetheless, I still discovered new things, and it’s no wonder. The staff of the station are constantly upgrading, updating, and tweaking the performance of their equipment. This is the reason their signals are always full-fidelity and crystal-clear on the air.

I’m simply amazed by all they accomplish.  Keeping this station running is certainly a labor of love.

Of course, this won’t be my last visit to the station.  I fully intend to return, if not later this year, at least next, to check out the new transmitters in operation.  Stay tuned! To this active VOA station.

Click here to read an article about my first visit to the Murrow Transmitting Station.


Do you enjoy the SWLing Post?

Please consider supporting us via Patreon or our Coffee Fund!

Your support makes articles like this one possible. Thank you!

1955 Film: Assembling Regency transistor radios in Indiana

Many thanks to SWLing Post contributor, Pete Eaton, who shares the following vintage industry short film:

Click here to view on YouTube.

Like Pete, I’m impressed with the size of those soldering irons!


Do you enjoy the SWLing Post?

Please consider supporting us via Patreon or our Coffee Fund!

Your support makes articles like this one possible. Thank you!

RFI: “The power of radio during British-mandated Palestine”

Radio engineer Moshe Rubin transmits the special broadcast during the opening of the Palestine Broadcasting Service, Ramallah, March 30, 1936. Source: Library of Congress Prints and Photographs Division Washington, via RFI

Many thanks to SWLing Post contributor, Alan Roe, who writes:

There is an interesting article/podcast by R France Int
entitled “The power of radio during British-mandated Palestine”.

“On 30 March 1936, the British High Commissioner of Palestine, Arthur
Wauchope, inaugurated the Palestinian Broadcasting Service, the PBS. It
was the second broadcaster to be established in the Middle East, after
Radio Cairo in 1934, and featured programmes in Arabic, Hebrew and English.

It covered the region of Palestine, Jordan, Syria and Lebanon, as well
as parts of Egypt. The new transmitter was in Ramallah and the
broadcasting offices were in Jerusalem.”

Full article and pictures at:

http://en.rfi.fr/middle-east/20190329-power-radio-during-british-mandated-palestine

Fascinating! Thank you for sharing this with us, Alan!