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Please try again.Please try again.Please try again. Please try your request again later. It's also a useful guide for anyone interested in hearing shortwave broadcasts while traveling anywhere in the world. Author Andrew Yoder includes a wealth of valuable information that shortwave enthusiasts can use immediately to increase their listening pleasure while on the road. After providing helpful descriptions of the different types of mobile shortwave radios, Yoder explains how to build and install effective portable shortwave antennas. Several complete projects are included to demonstrate how quick and easy it is to construct these makeshifts antennas. Then you can start reading Kindle books on your smartphone, tablet, or computer - no Kindle device required. In order to navigate out of this carousel please use your heading shortcut key to navigate to the next or previous heading. Register a free business account To calculate the overall star rating and percentage breakdown by star, we don’t use a simple average. Instead, our system considers things like how recent a review is and if the reviewer bought the item on Amazon. It also analyzes reviews to verify trustworthiness. Please try again later. ---- Quah Tat Hye 4.0 out of 5 stars. Our payment security system encrypts your information during transmission. We don’t share your credit card details with third-party sellers, and we don’t sell your information to others. Please try again.Please try again.Please try again. Please try your request again later. Then you can start reading Kindle books on your smartphone, tablet, or computer - no Kindle device required. In order to navigate out of this carousel please use your heading shortcut key to navigate to the next or previous heading. Register a free business account To calculate the overall star rating and percentage breakdown by star, we don’t use a simple average. Please try again.Please try your request again later.
No Cost EMI availableIt's also a useful guide to anyone interested in hearing shortwave broadcasts while travelling anywhere in the world. Several complete projects are included to demonstrate how quick and easy it is to construct these makeshift antennas. The remainder of the book consists of detailed listings of the best frequencies and times to listen to shortwave radio stations in Africa, Asia, Europe, North America, South America, and Oceania. Especially valuable to travellers are the two appendices: a UTC time chart and a chart of voltages and frequencies for wall outlets around the world. Then you can start reading Kindle books on your smartphone, tablet, or computer - no Kindle device required. Get your Kindle here, or download a FREE Kindle Reading App.To calculate the overall star rating and percentage breakdown by star, we don’t use a simple average. It also analyses reviews to verify trustworthiness. Used: Very GoodFree Upgrade to Priority Shipping. Products ship daily. Excellent customer service and Your Satisfaction is 100 Guaranteed. Book is in Very Good Condition. Text will be unmarked. May show some signs of use or wear. Will include dust jacket if it originally came with one.Please try again.It's also a useful guide for anyone interested in hearing shortwave broadcasts while traveling anywhere in the world. Several complete projects are included to demonstrate how quick and easy it is to construct these makeshifts antennas. Download one of the Free Kindle apps to start reading Kindle books on your smartphone, tablet, and computer. Get your Kindle here, or download a FREE Kindle Reading App.To calculate the overall star rating and percentage breakdown by star, we don’t use a simple average. It also analyzes reviews to verify trustworthiness. May show some signs of use or wear. Will ” Text will be unmarked. Will include dust jacket if it originally came with one. Satisfaction is guaranteed with every order.
” It's also a useful guide to anyone interested in hearing shortwave broadcasts while travelling anywhere in the world. By using our website you agree to our use of cookies. It's also a useful guide to anyone interested in hearing shortwave broadcasts while travelling anywhere in the world. Especially valuable to travellers are the two appendices: a UTC time chart and a chart of voltages and frequencies for wall outlets around the world. show more. In fact, based on the previous sections you've read, you may have already hopped onto the bands and have found a good broadcast. Below you'll find a Quick Guide to getting on the air. You can print this page and keep the Guide by your radio for quick reference until you get the hang of SWLing. As a general rule of thumb, lower frequencies are better at nighttime, higher frequencies in daytime. Every digital radio is different, so consult your owner's manual for instructions. On an analog radio, make sure you have the appropriate shortwave frequency band selected, then tune to the station frequency. Since analog dials are not as accurate as digital tuners, you may need to search a bit to find the broadcast you seek. Now you're SWLing! After you've been tuning in to the world bands for a while, you'll get to know different broadcasters. Unlike your local news media, shortwave news travels with you. That's the glory of shortwave radio. It doesn't care about borders. I would love your feedback, especially if it helps make my guide easier to understand.SWLing has been a catalyst for many professional careers in international fields, such as journalism, social sciences, and diplomacy. When your children listen to shortwave and are exposed to languages, stories, music and news from around the world, it sparks their imaginations like no other medium. It is, perhaps, one of today's most cost-effective educational tools you can get for your family.
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In some developing countries, shortwave listening enables remote communities to obtain regional programming traditionally provided by local medium wave AM broadcasters.Audiences discovered that international programming was available on the shortwave bands of many consumer radio receivers, and a number of magazines and listener clubs catering to the practice arose as a result. Shortwave listening was especially popular during times of international conflict such as World War II, the Korean War and the Persian Gulf War.Many hobbyists also choose to use Software-defined radio receivers for their benefits over traditional radios. The number of organized shortwave listening clubs has diminished along with printed magazines devoted to the hobby; however, many enthusiasts continue to exchange information and news on the web.Frank Conrad, an early pioneer of medium wave broadcasting with KDKA in Pittsburgh, instituted some of the first shortwave broadcasts around 1921. Stations affiliated with General Electric and Crosley followed shortly after.During the 1930s, new shortwave receivers appeared on the market as well as popular shortwave magazines and clubs. Shortwave stations often offered unique QSL cards for DXers.Germany, Italy, the Soviet Union, Britain, and many other countries soon followed, and some classic shortwave broadcasters got their start. Radio Moscow was broadcasting on shortwave in English, French, German, Italian and Arabic by 1939. The Voice of America (or VOA) began broadcasting in 1942 after its entry into World War II using the Yankee Doodle musical theme.Shortwave receiver manufacturers contributed to war production. Zenith launched the multi-band Trans-Oceanic series of radios in 1942. In some other countries, during the war, listening to foreign stations was a criminal offense. Established in 1939, 35-kilowatt Chinese shortwave station XGOY broadcast programming aimed at listening-restricted Japan.
While mostly simulcasting its medium wave sister station CKGW in Toronto, it also aired the International Short Wave Listening Club, aimed at DXers. Once the station boosted its signal to 500 Watts in 1932, it could be heard as far away as Europe, South Africa, and New Zealand on 6.095 MHz. It, and other Canadian shortwave stations, began broadcasting Northern Messenger in 1933, a mailbag show which allowed people to communicate personal messages to listeners in remote outposts in the Far North.Translations of intercepted broadcasts were teletyped to all New York newspapers, Associated Press, United Press International and International News Service, and in turn disseminated to newspapers and radio stations throughout the United States.Allied monitors notified families, but many shortwave listeners were often first to report the broadcasts.Although many of the messages undoubtedly are true, they represent but a small fraction of our prisoners and we have no assurance that many of them are not faked from papers picked up on the battlefield. What concerns some of us is the consequences of listening to Nazi broadcasts unless you are a well-trained listener (and often, even if you are). Nazi arguments often sound plausible. A person may listen to them with all the skepticism in the world, knowing that every word is a lie.A number of specialty radio clubs such as the Newark News Radio Club also arose during these decades and provided hobbyists with an exchange of DX news and information. Some of the other prominent DX programs were Radio Netherlands' DX Jukebox (which became Media Network ), the SWL Digest on Radio Canada International, and the Swiss Shortwave Merry-go-round on Swiss Radio International.The show originated on Philips Radio's PCJJ shortwave station in 1928, continuing until 1940. After World War II Radio Netherlands broadcast the show from 1946 until it terminated in 1995. Producer and presenter Keith Perron revived Happy Station on March 12, 2009.
Traditionally, listeners would send letters to the station with reception reports and requests for schedules. Many stations now accept E-mails or provide reception report forms on their Web sites. In addition, stations can provide broadcast schedules through the mail or E-mail. There are also shortwave radio programs dedicated to shortwave listening and DXing, such as the U.S.-based World of Radio and DXing With Cumbre, but recently these programs have been curtailed or dropped by many international broadcasters. As of 2007, Radio Habana Cuba still hosts a program called DXers Unlimited.In 2002, according to the National Association Of Shortwave Broadcasters, for estimated numbers of households with at least one shortwave set in working order, Asia led with a large majority, followed by Europe, Sub Saharan Africa, and the former Soviet Union, respectively.China and Russia retransmit some domestic channels on shortwave that target listeners in far off provinces.Radio Netherlands, Voice of Russia (formerly Radio Moscow ), Radio Canada International and Radio Australia are among the prominent broadcasters who have ceased broadcasting on shortwave. Although most of the prominent broadcasters continue to scale back their analog shortwave transmissions or completely terminate them, shortwave is still very common and active in developing regions such as parts of Africa.One reason is that digital shortwave broadcasts using DRM can cover the same geographic region with much less transmitter power — roughly one-fifth — than traditional AM mode broadcasts, significantly reducing the electricity cost of operating a station. Endorsed by the ITU, it has been approved as an international standard for digital broadcasts on the HF (shortwave) bands.October 2002. Archived from the original on February 22, 2020. Retrieved December 29, 2020. Retrieved 2006-05-18. By using this site, you agree to the Terms of Use and Privacy Policy. For other uses, see Shortwave (disambiguation).
Therefore, short waves directed at an angle into the sky can be reflected back to Earth at great distances, beyond the horizon. Thus shortwave radio can be used for very long distance communication, in contrast to radio waves of higher frequency which travel in straight lines ( line-of-sight propagation ) and are limited by the visual horizon, about 64 km (40 miles). Shortwave radio is used for broadcasting of voice and music to shortwave listeners over very large areas; sometimes entire continents or beyond. Other uses include military over-the-horizon radar, diplomatic communication, amateur radio enthusiasts’ two-way international communication for hobby, education, and emergency service, as well as for long-distance aviation and marine communications.Shortwave radio received its name because the wavelengths in this band are shorter than 200 m (1,500 kHz) which marked the original upper limit of the medium frequency band first used for radio communications.The drawbacks to this system included a very limited spectrum available for long-distance communication, and the very expensive transmitters, receivers, and gigantic antennas that were required. Long waves are also difficult to beam directionally, resulting in a major loss of power over long distances.Franklin rigged up a large antenna at Poldhu Wireless Station, Cornwall, running on 25 kW of power.Long-distance radio circuits also reduced the need for new cables, although the cables maintained their advantages of high security and a much more reliable and better-quality signal than shortwave.It recommended and received Government approval for all overseas cable and wireless resources of the Empire to be merged into one system controlled by a newly formed company in 1929, Imperial and International Communications Ltd. The name of the company was changed to Cable and Wireless Ltd. in 1934.This provided 36 high quality telephone channels and was soon followed by even higher capacity cables all around the world.
Competition from these cables soon ended the economic viability of shortwave radio for commercial communication.Longer distances and higher frequencies using this method meant more signal loss. This, and the difficulties of generating and detecting higher frequencies, made discovery of shortwave propagation difficult for commercial services. In 1922 hundreds of North American amateurs were heard in Europe on 200 meters and at least 20 North American amateurs heard amateur signals from Europe. The first two-way communications between North American and Hawaiian amateurs began in 1922 at 200 meters. Although operation on wavelengths shorter than 200 meters was technically illegal (but tolerated at the time as the authorities mistakenly believed that such frequencies were useless for commercial or military use), amateurs began to experiment with those wavelengths using newly available vacuum tubes shortly after World War I.On 21 September 1924 several amateurs in California completed two-way contacts with an amateur in New Zealand. On 19 October amateurs in New Zealand and England completed a 90 minute two-way contact nearly halfway around the world. The 15 meter band (21 MHz) was opened to amateurs in the United States on 1 May 1952.A typical phenomenon of shortwave propagation is the occurrence of a skip zone where reception fails. With a fixed working frequency, large changes in ionospheric conditions may create skip zones at night.At night, this property is reversed. The instantaneous amplitude of the carrier is controlled by the amplitude of the signal (speech, or music, for example).An amplitude-modulated signal has frequency components both above and below the carrier frequency. If one set of these components is eliminated as well as the residual carrier, only the remaining set is transmitted.Small errors in the detection process greatly affect the pitch of the received signal. As a result, single sideband is not used for music or general broadcast.
Single sideband is used for long-range voice communications by ships and aircraft, citizen's band, and amateur radio operators. Lower sideband (LSB) is customarily used below 9 MHz and USB (upper sideband) above 9 MHz.It is a compromise between AM and SSB, enabling simple receivers to be used, but requires almost as much transmitter power as AM. Its main advantage is that only half the bandwidth of an AM signal is used. It is used by the Canadian standard time signal station CHU. Vestigial sideband was used for analog television and by ATSC, the digital TV system used in North America.Because of the larger bandwidth required, NBFM is commonly used for VHF communication. Regulations limit the bandwidth of a signal transmitted in the HF bands, and the advantages of frequency modulation are greatest if the FM signal has a wide bandwidth.It is a digital signal, like the data modes, below, but is for transmitting audio, like the analog modes above.These generally require special equipment to decode, such as software on a computer equipped with a sound card.Licenses are granted by authorized government agencies. The CHU radio station in Canada transmits on the following frequencies: 3.33 MHz, 7.85 MHz, and 14.67 MHz. Other similar radio clock stations transmit on various shortwave and longwave frequencies around the world. The shortwave transmissions are primarily intended for human reception, while the longwave stations are generally used for automatic synchronization of watches and clocks. These are stations that broadcast on behalf of various political movements such as rebel or insurrectionist forces. They may advocate civil war, insurrection, rebellion against the government-in-charge of the country to which they are directed.It is believed that Numbers Stations are operated by government agencies and are used to communicate with clandestine operatives working within foreign countries. However, no definitive proof of such use has emerged.
The last WRC took place in 2007.AM shortwave broadcasting channels are allocated with a 5 kHz separation for traditional analog audio broadcasting.Additionally, international broadcasters sometimes operate outside the normal WRC-allocated bands or use off-channel frequencies. This is done for practical reasons, or to attract attention in crowded bands (60 m, 49 m, 40 m, 41 m, 31 m, 25 m).There are some ongoing discussions with respect to specific band allocation for DRM, as it mainly transmitted in 10 kHz format.Shortwave transmitting centers often use specialized antenna designs (like the ALLISS antenna technology) to concentrate radio energy at the target area.Simple shortwave regenerative receivers can be easily built with a few parts. Newer technology includes hand-cranked radios which provide power without batteries. Shortwave broadcasts can be easily transmitted over a distance of several thousands of kilometers, including from one continent to another. Therefore, in many of these countries it is widely used for domestic broadcasting. All one needs is a pair of transceivers, each with an antenna, and a source of energy (such as a battery, a portable generator, or the electrical grid). This makes shortwave radio one of the most robust means of communications, which can be disrupted only by interference or bad ionospheric conditions. Modern digital transmission modes such as MFSK and Olivia are even more robust, allowing successful reception of signals well below the noise floor of a conventional receiver. Therefore, Western audiences are limited. Others focus on intelligence signals from numbers stations, stations which transmit strange broadcast usually for intelligence operations, or the two way communications by amateur radio operators. Other listeners participate in clubs, or actively send and receive QSL cards, or become involved with amateur radio and start transmitting on their own.
Some stations even give out special certificates, pennants, stickers and other tokens and promotional materials to shortwave listeners.Evocations of shortwave reception distortions have been incorporated into rock and classical compositions, by means of delays or feedback loops, equalizers, or even playing shortwave radios as live instruments. Snippets of broadcasts have been mixed into electronic sound collages and live musical instruments, by means of analogue tape loops or digital samples.A few countries are hanging on to it, but most have faced up to the fact that the glory days of shortwave have gone.Retrieved 5 September 2009. Historical note discusses an International Radiotelegraph Conference on 4 October 1927, its intrigues and fallout. Dordrecht: Kluwer. ISBN 0-7923-0775-5. Retrieved 8 February 2007. University of California Press. pp. 76 ff. ISBN 978-0-520-02143-3. Chicago Review Press. pp. 275 ff. ISBN 978-1-55652-107-2. Cambridge University Press. pp. 83 ff. ISBN 978-1-107-18289-9. Ebury Publishing. pp. 98 ff. ISBN 978-1-4481-7776-9. The Economist. article describing pros and cons of short wave radio since the Cold War. Popular Mechanics. Hearst Magazines. July 1931. mid page 114. describes experiments carried out for the French and British governments. By using this site, you agree to the Terms of Use and Privacy Policy. Many are easily heard; some are difficult and rarely audible. You may not hear anything unless you are listening at the right time, or you may hear another language, or you may hear some other country sharing the frequency. Explore the dial and you will hear many fascinating things, including exotic music. Many of the frequencies are relayed from elsewhere. In the case of China, all of them shown below are relays. Don't assume any particular frequency is actually coming directly from the originating country. Longer frequency lists for these give you more chances to hear something directed elsewhere.
Groups Discussions Quotes Ask the Author To see what your friends thought of this book,This book is not yet featured on Listopia.There are no discussion topics on this book yet.We've got you covered with the buzziest new releases of the day. He has since tested positive for the coronavirus.The respiratory disease has spread rapidly across six continents and has killed at least 1 million globally. See What Yours Is Doing Here's how changes in case numbers are affecting their reopening plans. But there are lots of different ways to deal with your worries — like giving yourself a big hug! SARS-CoV-2 is the virus that causes COVID-19.There were 800 doses of vaccine available at the site.Here he plays at his Turnberry golf resort in 2018.The nursing home was an early epicenter for coronavirus outbreaks in the United States.Here, cardboard placards populate Iowa's Carver-Hawkeye Arena last month.He says between 70 and 90 of New Yorkers need to be vaccinated for the vaccine to be effective. Situated at the base of Mount Hood in the Pacific Northwest, it’s a magnet for creative musicians, a shoppingGreat food is always easy to come by in Portland. After you’ve shopped at Washington Square or downtown boutiques, check out restaurants on Burnside StreetThen wash it all down with some of Oregon’s infamous craft ales atFrom shoppers and sports fans to music lovers and hikers, Portland is a wonderful destination to explore. Whatever time of year you visit, you can listen to superb indie bands at venuesHead to chain stores like Macy’s at Washington Square Mall orIt’s also Oregon’s sporting center. Home to an NBA franchise (the Trail Blazers), a successful Major. League Soccer team (the Timbers) and an NHL team (the Winterhawks), sports fans can take their pick.
Take a rental car to coastal beauty spots like Seaside and Cannon Beach or head inland to Multnomah Falls to watch the Columbia RiverThe cultural highlight of the city’s calendar is the Rose Festival, which takes place at the Rose. Test Garden (400 SW Kingston Ave). In the summer, the gardens play host to 7,000 rose varieties, creating an astonishingly beautiful sight. But if there aren’t any basketball games duringFor instance, head to Providence Park to see the Timbers play Major League Soccer orIf you visitHead to the city in July to see the Waterfront Blues. Festival in Tom McCall Park or check the schedules at local venues like the Doug Fir Lounge (830 E Burnside St) and Wonder Ballroom (128 NE Russell St). Drive to nearby Cannon Beach, which has stunning rock formations, rent a fishing boatThe trailhead is just two hours from downtown Portland, so anyone with a rental car can drive upBetween July and September, Portland is also a hive ofHowever, don’t rule out a winter trip. TheConvention Center hosts a massive festive market in December, so a Christmas break could be ideal. The best way to reachThe Cascades service connects PortlandThe Coast Starlight links the city to San Francisco and Los Angeles, while visitors from Chicago and cities to the east can takeSimply take Interstate 5. I-84 runs into the cityNorthrup Station (2025 NW Northrup St). In the Downtown District, there’s the Hotel Monaco (506 SW Washington St) and the Westin (750 SW Alder St) which isYou can stay in 1920s style accommodation at the Heathman (1001 SW Broadway) or opt for something more modest likePopular Districts Diverse andIt’s also a great place to shop, with shoe stores like Zelda’s Shoe Bar (717. SW Alder St), jewelry makers, farmers’ markets, and men’s apparel stores like Steven Alan (1029 SW Stark St).
There are brewpubs like the Bridgeport (1313 NW Marshall), great Mediterranean food at Bluehour (250 NW 13th Ave), andMany people choose to rent bikes, and the city has published a handy map of all of the cyclingHowever, if you don’t have the energy to pedal, there are light rail, streetcar, and bus services all over town. Single tickets onHowever, locals tend to advise against driving into town as parking is scarce. Metered. That’s why it makes more sense to park your car outside the center and use public transport. The cityIt’s the largest city in America without a sales tax, so in many cases shoppers will make big savings onPenney at Oregon’s largest shopping mall. If you love to read, free an afternoon to browse at Powell’s City of Books (1005 W Burnside S), which houses overBlvd) and find retro-bargains at the House of Vintage (3315 SE Hawthorne Blvd). Groceries and Other Portland is nowhere near as expensive as New York or San Francisco, but groceries tend to be slightly more costly than elsewhere in the U.S. For example. There are plenty of supermarkets in the center ofAve). Fast food lovers will enjoy theHaydn (701 NW 23rd Av) is the best place to go for decadent desserts. After dining, why not venture into some of Portland’s brewery pubs. The city is famed. Now, the released Rapunzels are flocking to salons. Those in the know are donating their ponytails via the Sustainable Salons program and benefitting children with cancer and Alopecia. Emily Bissland reports. These are among the stranger and less convenient places where bees have swarmed in south west Victoria this year. Botanical beekeeper Dr Anna Currukan explains why bees swarm and what to do about it. Jacinta and Brian are pleased to curate twelve of these conversations for your listening pleasure. Help shape the ABC. Join ABC YourSpace. About the Archive This is a digitized version of an article from The Times’s print archive, before the start of online publication in 1996.
To preserve these articles as they originally appeared, The Times does not alter, edit or update them. Occasionally the digitization process introduces transcription errors or other problems; we are continuing to work to improve these archived versions. The development of portable, easy-to-use radios -- some the size of a paperback book -- has also brought about the 20 to 25 percent growth in the number of world-band receivers sold in the United States in the past few years, said Jock Elliott, a contributing editor to Passport to World Band Listening, an annual guide. Shortwaves differ from AM radio waves by their ability to travel great distances by bouncing from the earth to the ionosphere and back and again; AM waves bounce, too, but not as far. Shortwave broadcasters can also beam their programs in specific directions. Increasingly, English is becoming the standard language of international radio, and most countries broadcast at least part of their programs in English. They talk about tuning in to Radio Zagreb, reporting live from the streets during bombardments by Serbian forces, or hearing Russian pensioners on a Radio Moscow call-in program complain about the cost of living. In Europe and elsewhere, world-band radio has been a major news source for years. When Mikhail Gorbachev was under house arrest in the Crimea last August, he kept abreast of events in Moscow with his shortwave radio. Circuit design and technological breakthroughs also improved enough to make nighttime listening, when reception is best, nearly as clear as domestic AM broadcasts. And world-band listeners tend to be nighttime listeners: insomniacs, parents soothing a fussy baby, maybe even harried world leaders. Contact an embassy or consulate for information. Curiously, Americans cannot receive schedules for Voice of America broadcasts; Voice of America, a quasi-governmental agency, is forbidden by law to direct broadcasts or information to residents of the United States.