{"id":18659,"date":"2016-05-03T07:24:27","date_gmt":"2016-05-03T11:24:27","guid":{"rendered":"http:\/\/swling.com\/blog\/?p=18659"},"modified":"2016-05-03T07:25:29","modified_gmt":"2016-05-03T11:25:29","slug":"bobs-1961-radio-havana-cuba-qsl-card-and-full-text-from-dxers-unlimited-on-55th-anniversary","status":"publish","type":"post","link":"https:\/\/swling.com\/blog\/2016\/05\/bobs-1961-radio-havana-cuba-qsl-card-and-full-text-from-dxers-unlimited-on-55th-anniversary\/","title":{"rendered":"Bob’s 1961 Radio Havana Cuba QSL Card and full text from DXers Unlimited on 55th anniversary"},"content":{"rendered":"

\"RHC<\/a><\/p>\n

Many thanks to SWLing Post<\/em> reader, Bob La Rose, who shares a QSL he received (see above and below) from Radio Havana Cuba after they had only been on the air a few days back in 1961.<\/p>\n

\"RHC<\/a><\/p>\n

Amazing, Bob! \u00a0Thanks for taking the time to scan and share this report!<\/p>\n

Also, many thanks to\u00a0Arnie Coro,\u00a0Host of Dxers Unlimited <\/a>at\u00a0Radio Havana Cuba, for sharing the full text\/script from his May 1st 2016 anniversary edition of DXers Unlimited:<\/p>\n

Radio Havana Cuba<\/em><\/strong>
\n Dxers Unlimited<\/em><\/strong>
\n Dxers Unlimited\u2019s weekend edition for 1 May 2016<\/em><\/strong>
\n By Arnie Coro<\/em><\/strong>
\n Radio amateur CO2KK<\/em><\/strong><\/p>\n

Hi amigos radioaficionados, welcome to the weekend edition of Dxers\u00a0 Unlimited,\u00a0 today l am happy to celebrate with you all the 55th Anniversary of Radio Havana Cuba\u2026 Yes amigos, it was on the first day of May of 1961, during the May Day celebrations when Cuba had just won the battle against the mercenary invasion that we went on the air using our present name Radio Havana Cuba\u2026 Two announcers, Orlando Castellanos and Fernando Alcorta announced to the world that Radio Havana Cuba, was on the air\u2026 Previously we had used the name Cuban Experimental Short Wave, but from May one of 1961, we are known worldwide as Radio Havana Cuba\u2026<\/em><\/strong><\/p>\n

So today is a very special day\u2026 remembering those who have passed away after many years of valuable services to our station, like Pedro Costa the General Administration Manager, Carlos Estrada our Chief Engineer, and former Director Generals Marcos Behamaras. Orlando Fundora, Jose Antonio Cai\u00f1as and Alfredo Vi\u00f1as. I also keep very nice memories of Angel Hernandez our bilingual announcer with the most effective voice for short wave radio that I can recall, and also I remember Manolo Ortega, reading our Spanish language editorials so that they could be heard clearly through his powerful voice\u2026<\/em><\/strong><\/p>\n

Si amigos, I was there at the station 55 years ago as a young radio technician in charge of supervising the operations of our studios and transmitters that at that time included four Brown Boveri Swiss made short wave transmitters connected to a still under construction antennas farm, and the two studios borrowed from Radio Progreso until we could finish building our first studios .<\/em><\/strong><\/p>\n

The history of Radio Havana Cuba is full of very relevant moments, like the day that our Experimental Station announced to the world that the mercenary invasion that entered the Bay of Pigs had been defeated after sixty six hours of fierce combats .<\/em><\/strong><\/p>\n

With a lot of enthusiast and the impacting presence of a new generation of announcers, journalists , technicians, engineers and support\u00a0personnel\u00a0we are moving ahead to\u00a0provide the best possible programming keeping our short wave\u00a0transmitting\u00a0facilities because we do believe on the use of international short wave broadcasting,\u00a0while not disregarding the feeding of streaming audio to the Internet-<\/em><\/strong><\/p>\n

I am Arnie Coro, your host here at this special 55th Anniversary edition of Dxers Unlimited, that will continue in just a few seconds after a station ID..<\/em><\/strong><\/p>\n

Musical short cut<\/em><\/strong><\/p>\n

Yes amigos this is Radio Havana Cuba, using short wave frequencies at different times of the day on the 16, 19, 22, 25 ,31, 49 and 60 meters bands\u2026 and now our next radio hobby related item, a very popular section of this show under the name\u00a0\u00a0 Antenna Topics , that is dedicated today , at the request of several listeners to a very effective Dxing antenna, low take off angle radiator, known as the HENTENNA, A great number of listeners\u00a0 from all around the world\u00a0 have written to me recently, asking to learn more about\u00a0 this Japanese\u00a0 antenna\u00a0design\u00a0, known as the HENTENNA, that\u00a0seems to continue to be making headlines in radio publications around the\u00a0 world once again\u2026 But before telling you more about the mysterious HENTENNA\u2026. A solar activity update\u2026 believe it or not, we are seen the solar flux moving up to very near 100 units for the first time in many weeks\u2026 following the typical ups and downs of the tail end of solar cycle 24\u2026 so\u00a0 propagation conditions have improved on the short wave bands \u2026. Now back to the HENTENNA…<\/em><\/strong><\/p>\n

By the way, the first original report about the HENTENNA that went on the air\u00a0 here at Dxers Unlimited, dates back to\u00a0 1999,more precisely, it went on the air the 12th of October of 1999, and\u00a0 according to my records, it\u00a0 then generated a lot of interest from our listeners, who were at that time, 1999, getting ready to enjoy the peak\u00a0 years of solar dream solar cycle 23 !!! >Never as\u00a0powerful\u00a0as super cycle 19, but nevertheless much\u00a0better than the present very poor cycle 24.<\/em><\/strong><\/p>\n

So amigos here is\u00a0 at the request of Dxers Unlimited\u2019s fans , a special Dxers Unlimited’s report on the HENTENNA, the Japanese elongated\u00a0 rectangular loop antenna with an easy\u00a0 match to coaxial cable feedlines of any impedance, be it 50, 60 ,75 or \u00a0<\/em>93 ohms…or even 150 ohms !!! Of course that you can feed it with parallel transmission line of 300 to 450 ohms too, it is just a matter of minutes to find the perfect match for the feedline in use.<\/em><\/strong><\/p>\n

Let me start by saying that\u00a0 I recently built yet another HENTENNA for the FM broadcast band, and it\u00a0 is working nicely, having already picked up some Sporadic E skip DX stations from Mexico, the US and Puerto Rico during first few days of this year’s spring and summer\u00a0 E skip season.<\/em><\/strong><\/p>\n

Now you will have to learn something very unusual about the HENTENNA…\u00a0 the HENTENNA produces or receives VERTICALLY\u00a0 polarized waves when the antenna is placed horizontally; that is, with\u00a0 the long sides of the rectangular loop\u00a0parallel\u00a0to the ground. AND, if you want horizontal polarization, just flip the\u00a0HENTENNA so that the long sides\u00a0 of the loop are vertical, and the short sides are parallel to the\u00a0 ground, something that is puzzling, but that\u2019s the way it is amigos\u2026<\/em><\/strong><\/p>\n

By the way, one of the world’s foremost antenna experts, Dr. L. B.\u00a0 Cebik, amateur radio operator W4RNL, did during his fruitful life an extensive analysis of\u00a0 elongated loops, and his findings are really fascinating. Dr. Cebik , now sorrily a silent key specialized in computer modeling of complex antenna systems, and his work with the HENTENNA and other similar elongated loops shows that the\u00a0 HENTENNA is a very good performer indeed.<\/em><\/strong><\/p>\n

In a few seconds, be ready to write down, the formulas for calculating HENTENNAS\u00a0 in the frequency range from 14 megaHertz all the way up to 220 megaHertz. <\/em><\/strong><\/p>\n

And now, as promised\u00a0 more about the japanese wonder antenna… the\u00a0 HENTENNA. Dr. Cebik’s computer modeling shows that the elongated loop HENTENNA has an edge over a regular square one\u00a0 wavelength loop and the regular elongated loop.<\/em><\/strong><\/p>\n

HENTENNAS for receiving FM broadcast signals are very easy to build,\u00a0 using a wooden or PVC pipe frame and copper wire. I built the one just <\/em><\/strong>
\n mentioned cut for 100 megaHertz, using PVC insulated no. 12 wire, the\u00a0 one that is typically used for home wiring.<\/em><\/strong><\/p>\n

The loop was closed by soldering with a butane torch, and using regular\u00a0 solder with rosin core… The reason for using the butane torch is that no soldering iron at hand here could handle the heavy wire PLUS the high\u00a0 speed heat transfer of the copper wire.<\/em><\/strong><\/p>\n

The loop for the 100 megaHertz antenna is 1.5 meters on the long sides of the rectangle and 50 centimeters on the short sides. The feed point\u00a0 for the 50 ohm cable is was found to be\u00a0 located about 55 centimeters from one of the\u00a0 short sides of the loop.<\/em><\/strong><\/p>\n

The antenna is installed with the long sides in a vertical position; for receiving horizontally polarized FM broadcasts. I tried both 50 ohms and\u00a0 75 ohms coaxial cables, and could not detect any difference on the\u00a0 weakest station that I am picking up here regularly with the FM band HENTENNA.<\/em><\/strong><\/p>\n

Again, now please pay extra attention …if you want to make of these elongated loops for receiving, here\u00a0 are the measurements to use: for the long sides of the rectangle 1\/2 of\u00a0 a wavelength at the operating frequency, for the short side, the length\u00a0 is 1\/6 of a wavelength… and the connection point for the coaxial cable\u00a0 of 50 ohms impedance is a little more than 1\/6 of wavelength from one of the short sides of the rectangle, and it must be found experimentally by locating the point that provides the minimum standing wave ratio.<\/em><\/strong><\/p>\n

HENTENNAS can be built for any frequency between 10 megaHertz and 300 <\/em><\/strong>
\n megaHertz by using heavy WIRE, and for the frequency range from about 50\u00a0 megaHertz to 500 megaHertz you may try building HENTENNAS with copper or\u00a0 aluminum tubing.<\/em><\/strong><\/p>\n

Hope to have you all listening to my middle of the week edition of Dxers Unlimited amigos and do enjoy the improved short wave propagation conditions now in progress, especially after your local sunset.\u00a0<\/em><\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"

Many thanks to SWLing Post reader, Bob La Rose, who shares a QSL he received (see above and below) from Radio Havana Cuba after they had only been on the air a few days back in 1961. Amazing, Bob! \u00a0Thanks for taking the time to scan and share this report! Also, many thanks to\u00a0Arnie Coro,\u00a0Host […]<\/p>\n","protected":false},"author":15,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"categories":[56,960,3,305,894,288,43,1167],"tags":[1634,1635,1396,1212,4082],"class_list":["post-18659","post","type-post","status-publish","format-standard","hentry","category-broadcasters","category-international-broadcasting","category-news","category-nostalgia","category-qsl-gallery","category-radio-history","category-shortwave-radio","category-whats-on-shortwave","tag-arnie-coro","tag-dxers-unlimited","tag-radio-havana-cuba","tag-rhc","tag-shortwave-radio"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"","jetpack_shortlink":"https:\/\/wp.me\/pn3uc-4QX","jetpack-related-posts":[{"id":5475,"url":"https:\/\/swling.com\/blog\/2013\/01\/shortwave-radio-recordings-radio-havana-cubas-dxers-unlimited\/","url_meta":{"origin":18659,"position":0},"title":"Shortwave Radio Recordings: Radio Havana Cuba’s DXers Unlimited","author":"Thomas","date":"January 27, 2013","format":false,"excerpt":"If you live in the Americas and you regularly listen to a shortwave radio, you have no doubt heard Radio Havana Cuba\u00a0across\u00a0the shortwave spectrum. When I travel in North or Central America, I can easily hear RHC, often without even extending the telescopic antenna on my portable. A long-running program\u2026","rel":"","context":"In "Broadcasters"","block_context":{"text":"Broadcasters","link":"https:\/\/swling.com\/blog\/category\/broadcasters\/"},"img":{"alt_text":"ArnieCoroDXersUnlimited","src":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2013\/01\/ArnieCoroDXersUnlimited.jpg?resize=350%2C200","width":350,"height":200},"classes":[]},{"id":7439,"url":"https:\/\/swling.com\/blog\/2013\/09\/radio-progreso-signing-on-at\/","url_meta":{"origin":18659,"position":1},"title":"Starting tonight, Radio Progreso on shortwave","author":"Thomas","date":"September 30, 2013","format":false,"excerpt":"According to Arnie Coro at Radio Havana Cuba, the Cuban medium wave broadcaster Radio Progreso will begin an \"experimental\" shortwave broadcast on\u00a04,765 kHz from\u00a000:30 till 04:00 UTC on October 1st, 2013.\u00a0For those of us living in North America, this broadcast will begin at 08:30 PM EDT tonight. I will attempt\u2026","rel":"","context":"In "Broadcasters"","block_context":{"text":"Broadcasters","link":"https:\/\/swling.com\/blog\/category\/broadcasters\/"},"img":{"alt_text":"Radio-Progreso-Cuba","src":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2013\/09\/Radio-Progreso-Cuba-300x89.png?resize=350%2C200","width":350,"height":200},"classes":[]},{"id":55268,"url":"https:\/\/swling.com\/blog\/2023\/01\/silent-key-arnaldo-arnie-coro-antich-co2kk-of-radio-havana-cuba-has-passed-away\/","url_meta":{"origin":18659,"position":2},"title":"Silent Key: Arnaldo “Arnie” Coro Antich (CO2KK), of Radio Havana Cuba, has passed away","author":"Thomas","date":"January 8, 2023","format":false,"excerpt":"Many thanks to SWLing Post contributor, Richard Langley, who shares this sad news via Horacio A. Nigro (CX3BZ): Arnaldo Coro Antich (CO2KK) Passed Away This Morning At 80 Years Old This morning of January 8, 2023, our colleague Arnaldo de Jes\u00fas Coro Antich (CO2KK) died in a hospital in the\u2026","rel":"","context":"In "News"","block_context":{"text":"News","link":"https:\/\/swling.com\/blog\/category\/news\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2023\/01\/Arnie-Coro-SK-via-Radio-Havana-Cuba-1.jpeg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2023\/01\/Arnie-Coro-SK-via-Radio-Havana-Cuba-1.jpeg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2023\/01\/Arnie-Coro-SK-via-Radio-Havana-Cuba-1.jpeg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2023\/01\/Arnie-Coro-SK-via-Radio-Havana-Cuba-1.jpeg?resize=700%2C400&ssl=1 2x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2023\/01\/Arnie-Coro-SK-via-Radio-Havana-Cuba-1.jpeg?resize=1050%2C600&ssl=1 3x"},"classes":[]},{"id":4995,"url":"https:\/\/swling.com\/blog\/2012\/12\/more-shortwave-digital-text-and-the-reason-behind-it\/","url_meta":{"origin":18659,"position":3},"title":"More shortwave digital text (and the reason behind it)","author":"Thomas","date":"December 8, 2012","format":false,"excerpt":"SWLing Post readers have seen previous posts regarding text being broadcast via shortwave digital modes on WBCQ, WRMI and The Mighty KBC (which broadcasts again this weekend). Recently, Kim Elliott explained his mission behind these digital tests. Not only do I agree, but I support him completely. Why? It's proof\u2026","rel":"","context":"In "Articles"","block_context":{"text":"Articles","link":"https:\/\/swling.com\/blog\/category\/articles\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2012\/05\/SelectingDigitalMode-FLDIGI-300x168.jpg?resize=350%2C200","width":350,"height":200},"classes":[]},{"id":18645,"url":"https:\/\/swling.com\/blog\/2016\/05\/more-on-the-55th-anniversary-of-radio-havana-cuba\/","url_meta":{"origin":18659,"position":4},"title":"More on the 55th anniversary of Radio Havana Cuba","author":"Thomas","date":"May 2, 2016","format":false,"excerpt":"Many thanks to SWLing Post contributor,\u00a0David Iurescia (LW4DAF), for sharing the following feedback yesterday: Today, the 1st of May, is the 55th anniversary of Radio Havana Cuba. Here is\u00a0the link about this on their website: http:\/\/www.radiohc.cu\/en\/especiales\/comentarios\/91190-radio-havana-cuba-55-years-broadcasting-the-truth-to-the-world I haven't heard if RHC has any special programs or contests going on this\u2026","rel":"","context":"In "Broadcasters"","block_context":{"text":"Broadcasters","link":"https:\/\/swling.com\/blog\/category\/broadcasters\/"},"img":{"alt_text":"Radio-Havana-Cuba-QSL-Front","src":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2016\/04\/Radio-Havana-Cuba-QSL-Front-1024x714.jpg?resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2016\/04\/Radio-Havana-Cuba-QSL-Front-1024x714.jpg?resize=350%2C200 1x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2016\/04\/Radio-Havana-Cuba-QSL-Front-1024x714.jpg?resize=525%2C300 1.5x"},"classes":[]},{"id":18546,"url":"https:\/\/swling.com\/blog\/2016\/04\/daniels-radio-havana-cuba-qsl-card-from-august-15-2015\/","url_meta":{"origin":18659,"position":5},"title":"Daniel’s Radio Havana Cuba QSL card from August 15, 2015","author":"Thomas","date":"April 26, 2016","format":false,"excerpt":"Many thanks to SWLing Post contributor,\u00a0Daniel Amoroso, who shares this QSL card and notes: Hello Thomas,\u00a0 Attached is QSL # 1 from Radio Habana Cuba for their shortwave broadcast on 8- 15-2015 This was the day the US Embassy in Cuba was officially re-opened. Card was received on April 18\u2026","rel":"","context":"In "Broadcasters"","block_context":{"text":"Broadcasters","link":"https:\/\/swling.com\/blog\/category\/broadcasters\/"},"img":{"alt_text":"Radio-Havana-Cuba-QSL-Front","src":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2016\/04\/Radio-Havana-Cuba-QSL-Front-1024x714.jpg?resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2016\/04\/Radio-Havana-Cuba-QSL-Front-1024x714.jpg?resize=350%2C200 1x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2016\/04\/Radio-Havana-Cuba-QSL-Front-1024x714.jpg?resize=525%2C300 1.5x"},"classes":[]}],"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/posts\/18659","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/users\/15"}],"replies":[{"embeddable":true,"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/comments?post=18659"}],"version-history":[{"count":0,"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/posts\/18659\/revisions"}],"wp:attachment":[{"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/media?parent=18659"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/categories?post=18659"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/tags?post=18659"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}