https://f10255.fr/dx_bulletin/DX_BULLETIN.htm
SWL F-14368 Frank
vendredi 15 mars 2024
jeudi 14 mars 2024
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These articles have received more of 500 or 1000 visitors !
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International SWL contest in November and December 2023 links
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samedi 23 décembre 2023
A HUNDRED YEARS AGO The first weather report from the Eiffel Tower
Where to place the date of the birth of radio in France? A consensus seems to have been reached on the first concert broadcast by the Poste de la Tour Eiffel on December 22, 1921. The Tower then carried out tests almost daily. But the establishment of a real regular, fixed program dates from Monday February 6 when the military post offers a daily program with a little news, a little music but above all a weather report. Until then, these were transmitted only in Morse code by the Tower.
The first broadcast forecasts
A small revolution announced at the beginning of February 1922 by the ancestor of Météo-France. “From Monday, February 6, the National Meteorological Office will draw up a forecast every afternoon for agriculture, relating to the night and the next day's tour, which will be transmitted immediately by wireless telephony, by the TSF station. of the Eiffel Tower. This mission will take place every non-holiday day, at 4:30 p.m., on 2,600 meters of wavelength. »
What can we learn from hearing this forecast? The newspaper l'Intransigeant has the answer: "It will concern the following day and will relate to each of the following twelve regions: North-East, North, North-West, Parisienne, Brittany, West, South-West, Centre, Massif Central , South-East, South and East. This forecast will include these various elements: wind direction and strength, state of the sky, probability of precipitation, possibilities of phenomena dangerous for agriculture (frost, storm, hail, etc.), temperature variation, minimum night temperature. “
“The Tower will speak”
During these broadcasts broadcast every day between 4:30 p.m. and 5 p.m., you can hear the weather forecast repeated twice followed by news provided by the Ministry of Foreign Affairs as well as a small concert or records. A journalist from the Echo de Paris listened and gave his testimony: “The triple heralding vibration came to surprise us. “The Tower is going to speak,” said my host gravely, who urged me to set my watch to the time: 4:30 p.m. Then he solemnly put on his headphones, and, leaning towards him, I could hear, despite the noise carts and the cracking of whips - return from the market - which made the windows ring, the mysterious voice which spelled out the forecasts. Those who have attended a TSF concert have the memory of a large, nasal voice quite reminiscent of that of a giant photographer. This is the effect of the “speaker” which must distribute the sound in a large room. Nothing similar with the headset: the voice is distinct, clearly detached, as it can be in a very good telephone device.
Commander Jullien, who directs this military post at the Eiffel Tower, gives his comments to the newspaper l'Œuvre: “As far as wireless telephony is concerned, anyone can hear it, on small galena posts that you can find it on the market for around a hundred francs. With this modest and inexpensive equipment, we will very clearly hear the men talking, singing or playing music,” the soldier rightly prophesies.
What scope for these broadcasts?
It adds details on the reception of these programs. “But our broadcast is too weak to be heard throughout France. We are told to have seen it 285 kilometers away with an 80 meter three-wire antenna suspended 20 meters high. This is exceptional. In Luxembourg, it can be faintly seen on a galena with a 120 meter two-wire antenna placed 36 meters from the ground. On the other hand, at 150 kilometers, we can see it perfectly, with a 37-meter three-wire antenna placed 7 meters from the ground.
By the way, what was the weather like that day?
The first weather forecast broadcast announced severe cold, as we can read in the press of the day.
Source https://www.radiotsf.fr/tag/tour-eiffel/
Since November 1921, the military post of the Eiffel Tower (code FL) has been carrying out broadcasting tests every day from 4 p.m. to 5 p.m. on a wavelength of 2,600 meters. The power is low, 400 to 600 watts, but the waves are far from crowded. The signal therefore carries very far. During these tests, we read newspapers, novels and some amateurs sing a song or play their instrument. Sometimes series of numbers are broadcast for the purpose of verifying reception by military stations. Regularly, an announcer announces: “Hello, hello, this is the Eiffel Tower station”.
A microphone in front of the phonograph
In December, two concerts, one for Lille then another for Brussels (in the presence of Belgian sovereigns) were broadcast. The tests continue every day from 4:30 p.m. to 5 p.m. and on January 6, the Eiffel Tower broadcasts a concert from the office of Commander Julien, the station director. A phonograph has been installed and a soldier holds a microphone in front of the pavilion. Thus, some records by Italian tenor Enrico Caruso are broadcast: Madame Butterfly, Paillasse (Pagliacci). And finally, La Marseillaise. These are the first records on French radio!
A nice link http://leradiofil.com/tour_eiffel.htm
samedi 16 décembre 2023
Mes articles en Français pour les SWL Cibistes Radio amateurs
J'ai 3 blogs en Anglais sur l'écoute des radios en AM sur les ondes moyennes et courtes et le matériel pour écouter, en langue anglaise car cette langue est comprise dans le monde entier, je fais tout de meme certain articles en Français. Les articles qui sont en anglais sont souvent compréhensible meme si comme moi vous n'avez pas fais beaucoup d'Anglais a l'école !
Les groupes Facebook en Français
CB / PMR / RADIO AMATEUR LOZERE
Réseau des Emetteurs Français R.E.F
LE MONDE DE LA RADIO SWL DIGITAL
CiBistes et SWL des Hauts de France
Radioamateurs Francophones (ANRPFD)
Sinon je suis aussi sur une cinquantaine de groupes en Anglais ( RA, SWL, collection de TX et RX )
Mes BLOGS
https://chinaradiosswl.blogspot.com/ pas d'articles en Français sur ce blog
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https://webkiwisdrswl.blogspot.com/ 3 articles en Français
https://webkiwisdrswl.blogspot.com/2023/12/les-magazines-francais-pour-radio.html
https://webkiwisdrswl.blogspot.com/2023/10/un-recepteur-150-khz-30-mhz-pour-moins.html
https://webkiwisdrswl.blogspot.com/2023/09/devenez-ecouteurs-des-ondes-moyennes-ou.html
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https://icomjapan.blogspot.com/
https://icomjapan.blogspot.com/2023/12/les-radios-ondes-courtes-en-langue.html
https://icomjapan.blogspot.com/2023/12/projet-de-concours-decoutes-de-radios.html
https://icomjapan.blogspot.com/2023/11/pour-les-dons-ou-les-futirs-sponsors-du.html
https://icomjapan.blogspot.com/2023/10/merci-notre-nouveau-sponsor-paul-om0et.html
https://icomjapan.blogspot.com/2023/10/chinaradioswl-reglement-du-contest-swl.html
https://icomjapan.blogspot.com/2023/08/radio-ici-maintenant-en-homme-didier-de.html
https://icomjapan.blogspot.com/2023/05/videos-en-francais-comment-utiliser-un.html
https://icomjapan.blogspot.com/2023/05/l-univers-des-scanners-et-ondes-courtes.html
https://icomjapan.blogspot.com/2022/11/meteo-et-cartes-des-catastrophes-dans.html
Merci et 73 de Frank SWL F14368 FØDUW
lundi 11 décembre 2023
Ham radio TX and SWL receivers second-hand prices
https://web.archive.org/web/20201216020146/https://radioamateur.org/argus/
Price are in Euros
1,00 Euro =
1,077188 Dollar USA
Cote / Tendance = Rating / Trend
Choix d'une marque = Choosing a brand ( they are 60 bands )
Choix d'une catégorie = Choice of category ( 16 categorys )
Recherche = Search
Second hand small ads in FRANCE ( HAM radio, CB radios and PMR446 )
dimanche 12 novembre 2023
LOOP antenna for MW and SW listeners
The AL1 – Kit Loopantenna for reception from 10 KHz – 30 MHz
€69,50
New! The AL1 – Kit Loopantenna for reception from 10 KHz -30 MHz.
An active loop antenna for reception, delivered complete with all parts.
The AL1 is a complete kit-antenna for building an active loopantenna for receiving long- middle- and shortwave.
After building all parts on the PCB all you need to do is place it in the housing and connect the loop for operation.
New! The AL1 – Kit Loopantenna for reception from 10 KHz -30 MHz.
An active loop antenna for reception, delivered complete with all parts.
The AL1 is a complete kit-antenna for building an active loopantenna for receiving long- middle- and shortwave.
After building all parts on the PCB all you need to do is place it in the housing and connect the loop for operation.
The kit consists of :
1. A professional designed double-sided PCB with measurements of 36 X 45 MM with text and soldering mask.
2. All parts (NO smd!!) including BNC and loop connecting parts.
3. A pre-drilled watertight housing, sized: 80 X 82 X 55 MM. On the housing you will find the mounting plate of 140 X 82 X 4 MM with 2 mast clamps for a pipe with max diameter of 40 MM
4. Plastic flexible loop with a diameter of 1 meter .
5. PVC pipe for supporting the loop.
The powersupply can be connected directly to the pcb (12 VDC, ca. 80 mA) or by using a power insert on the coax cable. For example: you can use our power insert for the Mini Antenna or our Up-Converter. We also include schematics to build your own power insert.
The kit also includes building instructions in Dutch. English instructions are available at order.
For many years now, Van Dijken Elektronica has been a trusted address for various radio amateurs and hobbyists for a wide range of electronic parts.
In the early 1980s, Hans van Dijken took the step to convert his hobby into an independent business.
In the early 1980s, sales first started from a small shop in the center of Hoogkerk. The company has been located at this location for more than 10 years. Hoogkerk’s planning developments forced van Dijken to move. As a result, a Romney-shed on the Aduarderdiepsterweg, just outside Hoogkerk was used for some time.
Shortly after the new millennium, Van Dijken Elektronica moved to a spacious, private location. The company is still located at this location.
Where sales in the 80s and 90s still took place by telephone or by mail order, this has been moved to the internet with the start of the new millennium. In 2002, the first internet site was launched with online ordering options, making Van Dijken Elektronica a pioneer in this field.
In 2014 Hans van Dijken decided to take it easy, and van Dijken Elektronica was taken over by Nico and Hennie Elzinga. Together they do their best to continue the business in the same way as before, with good old-fashioned service.
https://www.vandijkenelektronica.nl/about-us/?lang=en
MLA 30
https://hamsignal.com/blog/mla-30-magnetic-loop-antenna-review-and-comparison
SWL antenna from Australia
https://www.amradioantennas.com/catalogue.htm
For SW, MW ad LW https://www.amradioantennas.com/shortwave_antennas.htm