Category Archives: Radio History

Vatican Radio – Then and Now

Many thanks to SWLing Post contributor Dan Greenall, who shares the following post:


When I began shortwave listening back in 1969, Vatican Radio was one of the first stations I came across. That same year, the late Dr. Richard E. Wood authored a book called “Shortwave Voices of the World” in which he writes some notes about the station that you can read here [PDF].

In fact, Vatican Radio was established in 1931 by none other than Guglielmo Marconi. It wasn’t until sometime after World War 2 that the present-day transmitter site was set up at Santa Maria di Galeria. A nice view of it is pictured on this 1970 QSL card.

By the early 1970’s, short English language broadcasts to North America were still included in their schedule as you can see from these pages in the 1972 World Radio TV Handbook [click to enlarge].

In 1983, Ken MacHarg, a former host of the DX Partyline on HCJB, was the author of a now out-of-print book entitled “Tune In The World”. Read Ken’s comments about Vatican Radio here.

Though their published interval signal (see WRTVH) was “Christus Vincit”, Vatican Radio could also be recognized by the bells of St. Peter’s, which you will hear in this recording from 1971 that I made from my listening post in Ontario, Canada: https://archive.org/details/vatican-radio-1971

In more recent times, I have read that shortwave broadcasts to North and South America, as well as Europe, ended in 2012. In addition, English language shortwave transmissions to Asia ended in 2017, though they could still be found online. A list of their current English language broadcasts, as found on short-wave.info is shown here:

Here is a recording made August 11, 2025 using a remote SDR in the UK, complete with “Christus Vincit” interval signal, as they began their African service on 9705 kHz.

Also included is a recording from September 30, 2025, as they ended a transmission on 15595 kHz.

TWR Swaziland / Eswatini – Then and Now

Many thanks to SWLing Post contributor Dan Greenall, who shares the following post:

Much to the delight of DXers, Trans World Radio began broadcasting from the African country of Swaziland over 50 years ago. According to the 1975 World Radio TV Handbook, they had four 30 kW transmitters to conduct initial testing in the 90, 60, 49, and 41 metre bands. Their interval signal, played on hand bells, reportedly comes from the song “We’ve a Story to Tell the Nations” and has a music box feel to it. It would pause frequently for an ID in English. This recording was made on November 2, 1996, on 4750 kHz just prior to 0400 UTC sign-on: https://archive.org/details/trans-world-radio-swaziland-1996

Today, the station is still on the air and follows the same format as in years past, except for the name of their country, which changed to Eswatini in 2018.

I chose a Kiwi SDR in neighboring South Africa to make this recent recording, on August 21, 2025 around 1359 UTC on 9585 kHz, leading up to the start of a program in the Portuguese language.

Nuts and Volts: FM Radio Arrives in U.S. Cars in 1958

Many thanks to SWLing Post contributor Dennis Dura for sharing this fascinating Nuts & Volts article exploring the history of FM radio in American automobiles. While AM dominated dashboards for decades, FM began to make its way into U.S. cars in 1958, slowly changing how drivers listened to music and news on the road. The piece traces the industry’s hesitations, the technical challenges, and the cultural shift that followed. You can read the full story here:

FM Radio Reception Comes to U.S. Cars in 1958

Preserving Radio History in Your Community

Many thanks to SWLing Post contributor Dan Greenall, who writes:

I have lived in southern Ontario, Canada my entire life, have been DXing since the late 1960’s and have held the amateur radio call sign VE3HLC for over 50 years.  Most of this area’s AM broadcast stations had been considered “pests” over the years as I searched for more distant targets, until recently, when many of these began quietly slipping from the airwaves.  While this opened up some new frequencies to DX, I soon began to feel that I had lost some old friends, many that I had known since childhood.

When I retired in 2018, I decided to spend a little time trying to preserve some radio history of stations in southern Ontario communities that have played a part in my life. This might include audio clips, QSLs, station booklets, and other types of ephemera, and I would try to place this information where it could be easily accessed by future historians or anyone else who is interested.  In the end, I chose to use the Internet Archive (archive.org), where most uploaded information can be viewed (or heard) and downloaded for free.

CFPL, London, Ontario   980 kHz (still on the air)

“Communications in the Community” is a hardcover limited edition (2000 copies) souvenir book printed in 1966 by the Special Printing Unit of The London Free Press in London, Ontario, Canada.  It includes historical information about the London Free Press (newspaper) and CFPL radio and television.  I was lucky to find this item at a church rummage sale nearly 20 years ago.

CFPL began its life as CJGC in 1922. I acquired one of their QSL cards from 1925 through an eBay purchase a few years ago.

The above and more can be found by clicking on this link.

https://archive.org/details/page-16

CKOC, Hamilton, Ontario 1150 kHz (still on the air)

CKOC radio in Hamilton also started up in 1922.  My parents met while working at the station in the late 1940’s.  My brother and I (both radio amateurs), along with a few friends were given permission to operate on “Field Day” weekend in 1985 from their old abandoned transmitter site at Elfrida, Ontario.

This area has long since been developed to build homes and shopping areas.

“This is Hamilton, Ontario and the story of broadcasting station CKOC” is an undated booklet (I am guessing circa 1950) that I was able to purchase on eBay.  Also found on eBay were two verifications, one from 1931 and the other from 1983.

You can find these scans and more by following this link.

https://archive.org/details/page-13_202209

CKNX, Wingham, Ontario 920 kHz (still on the air)

This station began in 1926 using the unusual call sign 10BP.  It would remain that way until 1935.  I managed to secure this QSL from 1932 through eBay, signed by its founder W.T. “Doc” Cruickshank.

Interesting stories of how the station began can be found at this link.

https://www.communitystories.ca/v1/pm_v2.php?id=story_line&lg=English&fl=0&ex=386&sl=2541&pos=1&pf=1

CKCR, Kitchener-Waterloo, Ontario 1510 kHz  (no longer on the air)

In 1924, this station began briefly in nearby Brantford, Ontario. It quickly moved to Kitchener-Waterloo and existed until 1965 when it became CKGL.  The CKCR call sign was picked up later in 1965 by a station in Revelstoke, BC.

Another eBay purchase, I found this QSL with a not-to-scale map of southern Ontario from 1934.

More Ontario QSL’s can be found in my broadcast band gallery at this link: https://archive.org/details/ckoc-hamilton-on-1983

I would encourage others to save parts of the local radio history in their city, state, province or country and give back to the hobby that we have enjoyed for so many years.   I would also be happy to hear about any efforts you have made!

Dan Shares Recordings of the Golden Days of European Shortwave Listening

Many thanks to SWLing Post contributor Dan Greenall, who shares the following guest post:


Europe on shortwave in the 1970’s

by Dan Greenall

During the golden years of shortwave listening, many European countries had an international shortwave service and broadcast programs to North America (where I live) in English. As a result, these stations were usually among the first that a newcomer to the hobby would find.  However, since there was no internet or e-mail, schedules often had to be found in the various club bulletins and hobby magazines.  QSLs arrived through the postal system and could often take months to arrive.

I soon developed the habit of making a brief recording of each station as additional “proof of reception,” and many of these have survived to this day.  These were typically made by placing the microphone directly in front of the speaker of my receiver.  In recent years, they have been uploaded to the Internet Archive, and links to some of them from the early 1970s can be found here.

[Note that each title links to the Archive.org page where you can find more information and QSLs.]

Radio Moscow

Deutsche Welle, Cologne 

Radio Berlin International 

Belgian Radio

Radio Belgrade

RAI, Rome

ORTF, Paris

IBRA Radio via Radio Trans Europe in Portugal

Radio Sofia Bulgaria

Austrian Radio

Radio Prague

Radio Denmark

Radio Luxembourg

Vatican Radio

Radio Sweden

Trans World Radio Monte Carlo

Radio Kiev

Radio Free Europe

Radio Nordsee International

100 Years Ago: A Teenager in Iowa Reaches Greenland by Radio

Collins QSL Card via the Collins Bookshop

Many thanks to SWLing Post contributor David Iurescia, who shares this fascinating article from The Gazette:

Arthur A. Collins Legacy Association celebrates 100th anniversary of major radio breakthrough in Cedar Rapids

CEDAR RAPIDS — Years before the first trans-Atlantic phone call, and decades before international direct dialing would become available, a Cedar Rapids teenager had a direct line to one of the most remote places on earth.

And decades before companies like Collins Radio and Rockwell Collins became multibillion dollar enterprises, a 15-year-old’s ham radio was connecting Arctic explorers with the world from an attic on Fairview Drive.

On Aug. 3, 1925, Arthur A. Collins made headlines as the first person to communicate with MacMillan scientific explorers in Etah, Greenland on short-length radio waves — what The Evening Gazette in Cedar Rapids hailed as “a new chapter into the history of radio.”[…]

Explore the full story on The Gazette.

HCJB Quito, Ecuador – Then and Now

Many thanks to SWLing Post contributor, Dan Greenall, who writes:

In the 1970s, the powerful signal from radio station HCJB, the Voice of the Andes, in Quito, Ecuador, could be heard with station identifications (similar to this one circa 1971) being given between programs.

I am led to believe that they were made by the late Bob Beukema (1928-2001), since his resonant radio voice was often referred to as the “Voice of the Andes”. My listening post at the time was Ancaster, Ontario, Canada.

Today, the station can still be heard broadcasting from Ecuador, albeit with much lower power, perhaps 10 kW at the most, and a much simpler antenna arrangement.

The accompanying recording was made July 30, 2025 on 6050 kHz around 0200 hours UTC using a Kiwi SDR located in Lima, Peru. Even though programming is only in Spanish and indigenous languages, some of that wonderful Andean music can still be found here.

73
Dan Greenall, Ontario, Canada

Click here to download a bit of HCJB ephemera (PDF).