Can you help Dan solve this 50 year old radio mystery?

Photo by Sai Harish on UnsplashMany thanks to SWLing Post and Shortwave Radio Audio Archive contributor, Dan Greenall, who writes:

Hi Thomas

From the early 1970’s, where sadly, some of my original logbooks went missing many years ago.

ANTEL, the Administracion Nacional de Telecommunicaciones in Montevideo, Uruguay used to use its telephone time announcement instead of a voice mirror – so they got their name ‘La Senal’ in the 1970’s. Their voice announcements in SSB mode were in Spanish and the station could be found on frequencies all over the shortwave spectrum, including 5772 kHz (CXL20), 8037 kHz (CXL21), 10770 kHz (CXL24), 11660 kHz (CXL25), 14575 kHz (CXL26), 16047.5 kHz (CXL28), and 19525 kHz (CXL33). The accompanying recording was made on January 9, 1971 on about 13550 kHz.

La Senal Uruguay Jan 9 1971 13.55:

In those days, it paid to belong to a good DX club (such as SPEEDX) or I may not have been able to identify this station at all. I was also able to get my hands on a used copy of the Klingenfuss guide to utility stations which had very detailed frequency and callsign information. Unfortunately, I let this valuable resource go a number of years ago.

And now for the mystery……

Around the same time (early 1970’s), I heard and recorded this similar styled transmission, except it was in the French language, and which remains unidentified to this day. I have no exact date/time heard or frequency information for this one.

All recordings made in Ancaster, Ontario, Canada. (40 miles SW of Toronto)

Mystery French Time Station:

Any guesses will be greatly appreciated.

73

Dan Greenall

Readers, if you can help Dan identify this recording, please comment!

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Special Update to A Nutty Idea XHDATA D-220 DX Contest

XHDATA D-220 PortableOriginally, the XHDATA D-220 DX Contest was intended to be on shortwave, but prompted by a question from Dennis, K2DCD, I consulted with Thomas (our Maximum Leader) and he said “I say with a radio this basic, simply go for anything and everything logged.”

That makes sense and sounds like pure, unadulterated DXing pleasure.

So here are the new rules:

  • You must use a D-220 with native (built-in) antenna (no hooking it up to your two-mile-long Beverage antenna)
  • No use of other radios or SDRs as “spotter” radios.
  • You must ID off the air.
  • Any band the D-220 receives.
  • Any location.
  • Contest starts 6 pm your local time on Friday, August 16, 2024 and it ends at 6 pm your local time on Sunday, August 18, 2024.
  • Log the time, the estimated frequency, the station ID and what you heard.

There are no prizes, just bragging rights.

Feel free to report in lavish detail on your experience during the contest . . . especially if you had fun!

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Carlos’ Shortwave Art and Recordings Explore Extreme Weather

Many thanks to SWLing Post contributor and noted political cartoonist, Carlos Latuff, who shares his radio log art of recent broadcasts from the Voice of Korea, NHK, and KBS.


Voice of Korea

Carlos notes:

Part of Voice of Korea news bulletin about floods in the DPRK:

“…Shortly ago, floods and heavy rains seriously and consecutively damaged some areas of the country, including North Phyongan and Jagang provinces. In this regard, the 22nd emergency enlarged meeting of the Political Bureau of the Eighth Central Committee of the Workers’ Party of Korea was held in an afflicted area in the city of Sinuiju, North Phyongan Province, from July 29 to 30 to take urgent rehabilitation measures.
Prior to the meeting, the respected Comrade Kim Jong Un inspected the flooded areas, together with the premier of the Cabinet and secretaries of the Central Committee of the WPK.
Many public buildings, facilities, roads and railways, including more than 4,100 houses and nearly 3,000 hectares of farmland, were flooded in the city of Sinuiju and Uiju County located on the lower reaches of the Amnok River…”

https://youtu.be/

Click here to view on YouTube.

NHK and KBS

Carlos notes:

Excerpts from NHK (Japan) and KBS World Radio (South Korea) news bulletins about heatwaves. Listened in Porto Alegre, Brazil, via shortwave.

Click to view on YouTube.

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The Radio Phonics Laboratory

Fastradioburst23 here to let you know about a brand new book from Imaginary Stations contributor Justin Patrick Moore. The Radio Phonics Laboratory: Telecommunications, Speech Synthesis, and the Birth of Electronic Music is a radiocentric look at the origins of electronica. Radioheads will find much to enjoy in the pages of this tome including:

  • Elisha Gray’s Musical Telegraph, arguably the world’s first synthesizer that used telegraph wires to send music down the line to distant listeners.
  • Lee De Forest’s Audion Piano. Radio pioneer Lee De Forest used his invention of the triode vacuum tube, or audion, to make an electronic musical instrument, perhaps his least contentious invention!
  • The radio work and espionage activities of Leon Theremin, who worked as an engineer at a distant station deep within the Soviet Union where he discovered the principles to make his famous antenna-based instrument.
  • The avant-garde antics of the Lost Generation composer George Antheil and his collaboration with actress Hedy Lamarr that led to the development of the spread spectrum suite of transmission techniques that now permeate our everyday life wherever there is WiFi.

But that’s not all! At the heart of this narrative is the evolution of speech synthesis. Spanning the groundbreaking work of Homer Dudley at Bell Laboratories with his work on the voder and vocoder to the dual discovery of Linear Predictive Coding from the research done by Fumitada Itakura at Nippon Telegraph and Telephone in Japan to the parallel discoveries in the same field made by Manfred Schroeder and Bishnu S. Atal at Bell Labs. Linear Predictive Coding gets put to work whenever someone picks up a cell phone to make a call, or when they get on their DMR radio to join a net with their fellow ham radio friends across the world. Linear Predictive Coding was later put to work in the compositions of early computer music pioneer Paul Lansky at Princeton.

Tracing the early use of the vocoder in enciphered radio transmissions between Churchill and Roosevelt in World War II to its use by Robert Moog and Wendy Carlos, this is the story of how investigations into the nature of speech generated a tool to be used by the music makers who merged their voices with the voice of the machine.

But wait, there’s more! The creative use of these phonic frequencies really took hold when radio stations and radio companies spearheaded the creation of the first electronic music studios. These laboratories include:

  • Halim El-Dabh’s use of wire recorders loaned from Radio Cairo to create the first pieces of what was later called musique concrète, where raw sounds were manipulated to create a new kind of music.
  • Pierre Schaeffer’s creation of the Groupe de Recherches Musicales (GRM) under the auspices of the Radiodiffusion Nationale station in France, leading to the subsequent spread of musique concrète.
  • The genesis of the Studio for Electronic Music of the West German Radio (Westdeutscher Rundfunk) born out of early developments in elektrische music made by the countries experimental instrument builders.
  • The subsequent building of an electronic music studio at NHK in Japan.
  • The story behind the “sound-houses” of the legendary BBC Radiophonic Workshop, and its pioneers Daphne Oram and Delia Derbyshire.
  • The development of the Columbia-Princeton Electronic Music studio made in conjunction with the RCA company and the building of their gargantuan instrument, The RCA Mark II Synthesizer.
  • And further explorations in the work being done at Bell Labs where the computers made music under the guidance of Max Matthews leading to creative breakthroughs from composers Don Slepian and Laurie Spiegel.

Of particular interest in this realm to the radio buff is the work of John Chowning, a composer who worked out the principles of FM synthesis, essentially figuring out how to do frequency modulation in the audio domain. He went on to create the Center for Computer Research in Music and Acoustics at Stanford, which became a model for the kind of sound laboratory later implemented in France at IRCAM, Institute for Research and Coordination in Acoustics/Music.

This the story of how electronic music came to be, told through the lens of the telecommunications scientists and composers who transformed the dits and dahs of Morse code into the bleeps and blips that have captured the imagination of musicians and dedicated listeners around the world.

The Radio Phonics Laboratory is available directly from Velocity Press here in the UK and Europe. North American readers can find it on Bookshop.org here , Amazon.com here and fine bookstores everywhere.

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Sony ICF-6700s on eBay

Many thanks to SWLing Post contributor, Julian Stargardt, who writes:

SWLing fans might like to know that at the moment on eBay there are about a dozen Sony ICF 6700 receivers for sale [eBay partnership link].

The ICF 6700 is the more reliable version of the better known ICF 6800 – the ICF 6800 is notorious for failing detector circuits and the complexity and difficulty of repair.

Hitherto the ICF 6700 has been less commonly seen.

I have an ICF 6700 it’s an interesting receiver designed to look like a professional rig but lacking features like passband and notch that a pro rig of the day would have. It’s not a bad receiver and with its preselector system of tuning has an extremely quiet noise floor. It also is rather stable.

How does it compare with a good modern DSP, eg, Tecsun PL 330, PL 880, PL990, or PL8800? No comparison. The current crop of top of the line receivers are better. As is the Sony 2010 / 2001D.

But if you’d like a nice looking table top with good audio and you like retro solid state, then the Sony ICF 6700 is not a bad choice.

Cheers
Julian

Click here to search for the Sony ICF-6700 on eBay.

[this partnership link supports the SWLing Post.]

Thank you for the tip, Julian! I would also note that, as with any eBay item, you should check the seller’s feedback score and read the description of the item carefully. Some units are in excellent condition and some need repair. Also, shipping varies greatly with these listings.

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A Nutty Idea

XHDATA D-220 available in three colors

By Jock Elliott, KB2GOM

Official Disclaimer: “Yes, XHDATA is a supporter of the SWLing Post but this is my own crazy idea, and we aren’t getting any commissions from the sales. XHDATA doesn’t even know we’re doing it!”

It’s all Robert Gulley’s fault. He had the temerity to post an article about the XHDATA D-220 entitled “A Throwback to a Simpler Time” —  I read it, was intrigued, and ordered one.

It arrived today, and, by golly, it actually works. I snapped a couple of AA cells into the battery compartment and discovered immediately that it appears to have a pretty hot FM receiver section. Then I tried medium wave and pulled up several of the local AMers. Then, the acid test: shortwave. Robert Gulley was right: “you will want to turn the dial slowly, very slowly.” But, sonuvagun, if you use a safecracker’s touch, you will actually discover and receive distant shortwave stations on that dinky telescoping whip antenna . . . with an exceedingly inexpensive radio.

So here’s my Nutty Idea: How about an XHDATA D-220 DX contest?

Rules:

  • You must use a D-220 with native antenna
  • No use of other radios or SDRs as “spotter” radios.
  • You must ID off the air.

As Thomas, our Maximum Leader, put it: “It’s so insanely cheap, it’s a great way to have everyone on a level playing field. Well, unless someone gets the yellow version which we all know has special powers.” (Yes, I bought the yellow version.)

Further, I proposed we kick this thing off at 6 pm your local time on Friday, August 16, 2024 and it ends at 6 pm your local time on Sunday, August 18, 2024. You log the time, the estimated frequency, the station ID and what you heard. There are no prizes, just bragging rights. The object: to have fun!

So, whaddya think?

Or should I go back to the home and start taking my meds?

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RNZ Inaugurates New Analog and DRM Ampegon Transmitter

Many thanks to SWLing Post contributor, David Iurescia, who shares the following news release via the DRM Consortium

DRM RNZ Shortwave Transmitter For Pacific Inaugurated

On August 1st the New Zealand Deputy Prime Minister and Foreign Minister came to RNZ House in Wellington to mark the start of the use of the new analogue and DRM transmitter, replacing a 34-year-old transmitter at the Rangitaiki broadcast site.

In a $4.4-million-dollar project, the public broadcaster RNZ has installed a new Swiss-made Ampegon shortwave transmitter.

Chief Executive and Editor-in-Chief Paul Thompson said it’s a significant infrastructure upgrade and secures the future of the RNZ shortwave service into the wider Pacific.

RNZ Pacific broadcasts into the wider Pacific on shortwave 24 hours a day, broadcasting in English and Pacific languages, in collaboration with 22 broadcasting partners across the region.

“The attraction of the shortwave service is that it delivers our unique voice and content to all parts of the Pacific via a signal which can carry over great distances, and achieve good audiences,” said Thompson.

“RNZ Pacific is an essential source of information, especially so during the cyclone season or during a crisis such as the Tonga eruptions,” he said.

RNZ’s Transmission Engineer Specialist Steve White said the project to replace the 34-year-old transmitter at the Rangitaiki broadcast site near Taupo had gone smoothly – being on budget and achieved without disruption to service. “We have appreciated the close working relationship with Ampegon for the new transmitter installation,” he said.

RNZ broadcasts into the wider Pacific on shortwave 24 hours a day, collaborating with 22 broadcasting partners across the region.

Click here to read the original article at DRM.org.

Many thanks to SWLing Post contributor, Alan, who shares the following context:

Receiving Radio New Zealand Pacific’s new transmitter.

Please look for this signal from the newest brand new high frequency (SW) transmitter.

It’s on air 00:00 – 04:48 UTC daily on 17675 kHz AM aimed at the Southern Pacific Ocean from 66 Matea Rd, Rangitaiki, Bay of Plenty,  co-ordinates -38.8426 176.4297

 https://www.rnz.co.nz/international/pacific-news/523864/rnz-goes-live-with-new-pacific-shortwave-transmitter

 https://www.drm.org/radio-new-zealand-uses-new-drm-shortwave-transmitter-for-wide-coverage/
There is a link in that article which goes to the RNZ Pacific website which has not been updated for the new transmitter.

https://www.rnz.co.nz/international/listen shows no changes to duration and times of transmissions at all with the exception of a new time slot for the new transmitter outlined above.

https://www.rnz.co.nz/international/qsl to make reception reports.

The RNZ Pacific have been heard in both AM and DRM on the West Coast of North America and occasionally in Europe.
https://www.rnz.co.nz/international/rebroadcasters 

A DRM receiver including KiwiSDRs can receive the DRM signal anywhere in the coverage area not just in the communities.

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