Radio transmission in the 1.7-30 MHz frequency range worldwide. Like AM radio, shortwave signals reflect back from the ionosphere and follow the curvature of the earth. As a result, shortwave (SW ...

With the audio signal fed to HDSDR, [Aniss] was able to pick up a shortwave radio broadcaster. While this is by no means a high-performance receiver, building an SDR on a breadboard is still a ...

Package Dimensions: 26.67 cms (L) x 14.732 cms (W) x 8.382 cms (H) Product Type: Radio Package Quantity: 1 Country Of Origin: Japan ...

Short Wave New discoveries, everyday mysteries, and the science behind the headlines — in just under 15 minutes. It's science for everyone, using a lot of creativity and a little humor.

THE practical application of ultra-short waves to radio communication made a step ... the new acorn tubes specially produced for ultra-short wave purposes.

A QSL Card from Radio Moscow probably got many 14-year-olds on government watch lists. (Public domain) Between World War II and Y2K, shortwave listening was quite an education. With a simple ...

Ducati launched its first motorcycle, the Cucciolo, in 1946, manufactured at the Borgo Panigale factory in Italy. But where ...

This is KDDI Corp.’s Yamata Transmitting Station, the nation’s only facility broadcasting shortwave radio programs to overseas listeners. The station started broadcasts on Jan. 1, 1941.

the author comments on the story “VOA Is Shuttering Its Marianas Shortwave Site” and the subsequent letter “Keep the Marianas Shortwave Site and Shutter the ‘Worthless’ Services.” Radio World welcomes ...

In this letter to the editor, the author comments on Carter Ross’ popular story “VOA Is Shuttering Its Marianas Shortwave Site.” Radio World welcomes letters to the editor on this or any story. Email ...

"It was the last of the shortwave sites to be built in the UK," transmitter engineer Matt Porter told BBC Radio Shropshire. "It was excellent at getting into Europe and further afield. With the ...

NOAA said these recent flares were rated R3 on a 1 through 5 scale in terms of radio blackouts, meaning they were strong enough to knock out high-frequency or shortwave radio communication for ...