transmissions
Wavelength
Amplitute Modulation signals. a modulation(mixing)method used in early radio transmissions.in many countries, radio transmissions below 30 Mhz,are still using this method.short wave,medium wave transmissions,and some extent of VHF transmissions are possible in this method.
Chances are, the building you're in has a metal roof. This will block almost all radio transmissions.
No, not under normal circumstances do RF devices cause headaches. Radio frequencies are all around you at any given moment in time. Standard devices that you use everyday such as a radio (car, home, or walkman) or cordless phone pick up and use these radio transmissions.
A radio that receives Frequency Modulated (FM) transmissions.
transmissions
Wavelength
Amplitute Modulation signals. a modulation(mixing)method used in early radio transmissions.in many countries, radio transmissions below 30 Mhz,are still using this method.short wave,medium wave transmissions,and some extent of VHF transmissions are possible in this method.
yes
Yes, they can monitor and decipher.
Earth would appear as a bright source of radio waves to extraterrestrial astronomers due to human-made radio transmissions. These transmissions, including radio broadcasts, satellite communications, and radar signals, create a radio "glow" around Earth that can be detected from great distances in space.
CONTACT! Example (US radio transmission): "Lima 6 this is Mike 6 we have contact over!" Further transmissions would follow...normally with audible gunfire in the background of the radio transmissions.
radio transmissions and observatory purposes
radio
solar flares
Radio is spelled the same in Spanish as in English. It is pronounced, "RAH-dee-oh."