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How can a shortwave radio wave be transmitted long distances?
Radio waves in the shortwave band can be reflected or refracted from a layer of electrically charged atoms in the atmosphere called the ionosphere. Therefore, short waves directed at an angle into the sky can be reflected back to Earth at great distances, beyond the horizon.
Why are short wave radios not used anymore?
“Shortwave audiences have been in decline since then.” “AM broadcasting is expensive, and, since the end of the Cold War, many Western governments don’t see the need to spend large amounts on transmitting their output on shortwave,” said Sennitt. “As a result, some have closed down their shortwave services altogether.
Is there anything on shortwave anymore?
Answer: Absolutely! Regular shortwave radio listeners already know the answer to this question. Sure, the landscape of the shortwaves is changing, but it’s such a vast landscape that, even with a few major players dropping out, there is still so much to hear and appreciate.
Can I broadcast shortwave?
Shortwave stations in the USA are not permitted to operate exclusively for a domestic audience; they are subject to antenna and power requirements to reach an international audience. Private shortwave broadcasting is fairly rare around the world.
What can I listen to on shortwave radio?
Specialized interests of shortwave listeners may include listening for shortwave utility, or “ute”, transmissions such as shipping, sailing, naval, aviation, or military signals, listening for intelligence signals (numbers stations), or tuning in amateur radio stations.
What should I listen to on shortwave?
Here is some of what I heard just in that wee swatch of spectrum:
- Voice of Greece – 9,240 kHz.
- Voice of Iran – 9,460 kHz.
- WTWW – 9,478 kHz.
- Deutsche Welle – 9,490 kHz.
- Radio Riyadh – 9,555 kHz.
- Radio Marti – 9,565 kHz.
- North Quebec Service – 9,625 kHz.
- Voice of Turkey – 9,635 kHz.
Do you need a license to broadcast shortwave?
According to Ofcom, it’s legal to purchase a shortwave radio receiver or scanner without a license. You can use a shortwave radio to listen to channels over the airwaves as long as the device isn’t capable of transmitting messages to other people.
What can I do with a shortwave radio?
Besides their use in international broadcasting, shortwave radio frequencies and techniques are utilized to relay telephone and telegraph communications over great distances. Amateur radio stations and portable two-way radios also operate at shortwave frequencies.
Do you need a license for shortwave radio?