Category Archives: Nostalgia

Don Moore’s Photo Album: Museum Findings – World War II

Along US Highway 550 in southwest Colorado

Don Moore’s Photo Album
Museum Findings: World War II

by Don Moore

More of Don’s traveling DX stories can be found in his book Tales of a Vagabond DXer

Learning should be a life-long pursuit for all of us. One of my ways of doing that is by visiting museums while traveling, whether in the USA or abroad. Cultural, historical, and science museums are my favorites. And if a museum’s theme includes the 20th century, there is a good chance that something related to radio will be found in the collection. In this edition of the Photo Album I want to share some findings related to radio and World War II that I’ve recently found in museums here in the USA.

Do A-Bombs QSL? 

I’m based in Pennsylvania but my daughter lives in western Colorado and my son in Texas. So in September and October of 2024 I made a 45-day road trip to visit them both and see sites along the way. One stop was Santa Fe, New Mexico. The New Mexico History Museum downtown has an excellent exhibit on the development of the Atomic Bomb and the effect on the local area. The real place to learn about this, however, is an hour north of the city at Los Alamos, where the project actually happened.

In addition to the historical sites, Los Alamos has one of the best science museums I’ve been to anywhere. That’s not surprising considering that not many places have as many scientists per capita as Los Alamos does. And there I learned that radio was closely involved in dropping the first A-Bomb on Hiroshima.

The scientists at Los Alamos developed two types of atomic bombs. The bomb dropped on Hiroshima used a uranium-gun to initiate the explosion. The scientists were certain this would work so this was not tested beforehand. The bomb dropped on Nagasaki used the second method with a with a plutonium-implosion as the trigger. But they were uncertain as to whether or not this would actually work so it had already been tested in the New Mexico desert in July 1945. That was the first atomic explosion and the scientists collected lots of useful measurements.

But the developers had no such measurements for the uranium-gun bomb as it hadn’t been tested. But how to get them? They obviously couldn’t place monitors on the ground at Hiroshima beforehand. Physicist Luis Alvarez was tasked with finding a solution. Alvarez’s team built three canisters filled with monitoring equipment and VHF transmitters to be carried by The Great Artiste, the observation plane that would accompany the Enola Gay to Hiroshima. The three canisters were to be dropped by parachute at the same moment that the Enola Gay dropped the bomb.

The signals from the canisters were to be picked up by a bank of Hallicrafters S-36 VHF receivers on the plane and then feed to oscillographs to record the results, which would simultaneously be recorded by movie cameras.

It all worked according to plan and data was received from two of the three canisters before they were engulfed by the explosion. But, to the best of my knowledge, no QSLs were issued for the receptions.

The WASP Museum

My next destination after Santa Fe was San Antonio, Texas, 700 miles (1100 kilometers) away. To make the road trip more interesting I wanted to find some things to see along the way. While perusing Google Maps I came across the National WASP World War II Museum in Sweetwater, Texas. The museum has nothing to do with insects. The acronym stands for Women’s Airforce Service Pilots.

The use of women pilots in support roles to the US Army Air Force began in 1942 with the Women’s Flying Training Detachment (WFTD) and Women’s Auxiliary Ferrying Squadron (WAFS). In 1943 the two programs were merged to form the WASP program and the airfield at Sweetwater was chosen for the four-month training program. In total, 1,830 women started WASP training and 1,074 finished, about the same success rate as with male military pilots of the era. Continue reading

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Jeff rediscovers the Tecsun PL-660

Many thanks to SWLing Post contributor Jeff McMahon over at The Herculodge for his recent post, “Dude, You Really Love Radios: A Nostalgic Ode to the Tecsun PL-660.

Jeff reflects on rediscovering the Tecsun PL-660, a “Pre-DSP Glory Era” classic, sharing insights about its design, performance, and the irresistible pull of nostalgia. Like many of us who love radios, he’s already contemplating buying a second one!

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Dan Revisits Radio Japan: A Half-Century Later

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


Running into an old friend

Hi Thomas

I was doing some random tuning on shortwave this evening using the KiwiSDR at VK2ATZ in New South Wales, Australia, when I came upon a repeating music box-like tune on 13705 kHz that I thought had a familiar sound to it. It was like running into someone who you hadn’t seen in many years and trying to place where you knew them from. Yes, the sound was a bit different, perhaps even a little slower (age does that ?), but then it came to me, could it be Radio Japan, the overseas service of NHK? A quick check at Short-Wave.info revealed this was indeed NHK World Radio.

It felt like I had found an old friend, one that I knew from my high school days over a half century ago. Still recognizable after all those years, and it felt good to know that they are still around.

Attached are two recordings:

Radio Japan, interval signal and bilingual ID, as heard in Ancaster, Ontario, Canada on 9505 kHz in 1970:

NHK World Radio, interval signal and sign on in Thai on 13705 kHz, January 23, 2025 at 2300Z (via VK2ATZ KiwiSDR):

73

Dan Greenall
London, Ontario, Canada

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The Curious Case of the Nibi-Nibi Islands

Many thanks to SWLing Post contributor Bob Colegrove, who writes:

Hi Thomas,

No mention of UTC or frequency in the attached. Made my day, but some folks apparently were not amused.

Nibi-Nibi Islands
A few months ago there appeared in the bulletins of various clubs and organizations an item about a new station located in the Nibi-Nibi Islands.
Additional reports on this station have been received from time to time, with the latest report containing information on new programming.
The National Geographic Society claims that there is no such island. And investigation into the situation by several veteran DX'ers has failed to locate the original source of the information. It is believed now that the entire episode was a hoax. While it may have begun as a harmless prank, it has, nevertheless, consumed the time and efforts of the editors of many clubs, organizations, and
DX programs.
This sort of thing has no place in short-wave listening. It is sincerely hoped that all DX'ers will be on the lookout for such obviously phony reporting and will do all they can to discourage any repetition of this kind.

Source was “Short-Wave Report” by Hank Bennett, Popular Electronics, Ziff-Davis Publishing Co., New York, p. 86, March 1959.

Regards,

Bob Colegrove

This absolutely made my day as well, Bob! What a delightful bit of pranksterism from our esteemed DXing history.

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Bridging Two Worlds: Shortwave Listening Meets Amateur Radio

When the SWL and Amateur Radio hobbies meet

by  Dan Greenall

Many of us who are also amateur radio operators, got their start in the hobby through simply listening to shortwave radio, or perhaps, to stations in the AM or FM broadcast bands.  I suppose it is then inevitable that these two hobbies are bound to connect with each other from time to time.  Here are a few examples of this that relate to my experiences.

In 1972, while doing a random band scan on shortwave, I came across a point-to-point radio station from Managua, Nicaragua that was transmitting a repeating test message (recording attached below):

The station was operated by the Tropical Radio Telegraph Company and I sent off a reception report in hopes of receiving a QSL from them.  As luck would have it, the Plant Engineer, Guenter G. Zaenker, responded with a friendly letter including some details about their transmitter power and antennas used.

A couple of years later, when I got my amateur radio licence (VE3HLC), my SWL activities took a back seat to ham radio for a while.  In 1978, I received a QSL for a contact with station YN1Z in Managua who turned out to be none other than Guenther G. Zaenker.

I worked Guenter for a final time as TG9XGV in Guatemala City, Guatemala. How is that for completing a hat trick!

Shortly after receiving my amateur radio ticket in 1974, I made a contact with station PJ9BN, Jack Van Sciver on the island of Bonaire in the Netherlands Antilles.

It turns out he worked at Trans World Radio, a broadcaster I had listened to regularly on the SWBC bands and it was quite exciting to discover this connection.  Attached is a link to a recording I made of this station that same year as they were concluding a segment of their popular DX Special program:

https://archive.org/details/trans-world-radio-bonaire

It seems that Jack is still going strong as I recently found this link to his current amateur callsign NA3F: https://www.qrz.com/db/NA3F

A final note, I had made a 2-way contact through the Oscar 6 amateur radio satellite (uplink on 2 metres, downlink on 10 metres) in 1976 with W.G. “George” Roach in Ottawa, Ontario.

Some 11 years later, I was able to pick up station CFMO FM on 93.9 MHz, over 300 miles away, through some great ducting conditions.  When I received a QSL from the station, it was signed by W.G. Roach who was the chief engineer at CFMO FM.

It certainly is a small world!  I wonder how many others out there have experiences similar to mine?

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From NDBs to TIS: A DXer’s Journey Across 1610-1700 kHz

Many thanks to SWLing Post contributor Dan Greenall, who shares the following guest post and asks, “Wonder who can add to this list?“:


A Look Back – DXing between 1610 and 1700 kHz

by Dan Greenall

1. The Caribbean Beacon, Anguilla West Indies 1610 kHz (1985 QSL)

2. NDB stations (non-directional beacons)

  • transmitted call letters on CW, mostly from airports, heard in the 1970’s
  • examples: MDE Medellin, Colombia 1690 kHz and RAB Rabinal, Guatemala 1613 kHz

3. U.S. Army Broadcasting Service KTRK 1670 Fort Meade, MD Feb 1996          articles and recordings

https://www.radioheritage.com/ktrk-k-truck-1670-khz/

4. FCC Part 15 Radio Stations

Example:    WDKW 1630 “the Klaw” Dundalk High School near Baltimore, MD

Link to my recording made at a DX camp in Coe Hill, Ontario, Canada on April 20, 1997: https://archive.org/details/wdkw-the-klaw-1630

An internet search revealed the following;

Part 15 of the Federal Communications Commission (FCC) rules allows some low-powered radio devices to operate without a license on the AM and FM radio broadcast bands. These devices are subject to certain restrictions, including:

  • Range: On FM frequencies, the effective service range is limited to about 200 feet (61 meters).
  • Field strength: The field strength should not exceed 250 ?V/m (48db) at 3 meters.
  • Detachable antennas: Part 15 rules prohibit detachable antennas on all Part 15 transmitters.

Some examples of Part 15 radio stations include:

  • Microbroadcasting

Often used by hobbyists, drive-in theaters, or on college or high school campuses.

  • Talking roadsigns, talking houses, or talking billboards

These transmitters air a repeating loop of information, such as traffic or highway construction. They typically operate on empty channels on the AM broadcast band.

  • InfOspot

A custom product that can include special audio systems, USB / internet connectivity, cabinets, and antenna mounting styles.

  • Free-radiate AM radio stations

Educational institutions can use a transmitter without a license if the signal coverage is limited to their property.

5. TIS (Travellers Information Stations)

1610 kHz with low power, usually around 10 watts, such as the one I hear near the Blue Water Bridge between Sarnia, Ontario and Port Huron, Michigan

6. Expanded AM broadcast band 

Over a quarter century ago, these frequencies began to be used in the U.S. by BCB stations.  I still have recordings of a half dozen of these from the early days.

WTDY 1670:

WNML 1670:

WMDM 1690:

KCNZ 1650:

KCJJ 1630:

KBGG 1700:

Also, here is a link to a column in Popular Communications magazine from February 1998.

https://www.worldradiohistory.com/Archive-Popular-Communications/90s/Popular-Communications-1998-02.pdf

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Is Billy Joel a Shortwave buff or Ham Radio operator?

Many thanks to SWLing Post contributor Larry Thompson, who writes:

I recently came across a photo of Billy Joel’s office in Sag Harbor in an interview with Willy Geist.

It looks like he has several shortwave radios or ham transceivers. Just wondering if anyone has a clue to his radio interests.

Readers: please comment if you have any insight!

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