Final answer:
UHF radios operate between 300 MHz and 3,000 MHz, suitable for various applications like TV broadcasting and wireless communications due to minimal absorption by common building materials.
Step-by-step explanation:
Radios that operate between 300 MHz and 3,000 MHz are known as UHF (ultra high frequency) radios. These frequencies are higher than those used for FM radio transmission and VHF television broadcasting. UHF channels are capable of carrying a great deal of information and are utilized for various applications including TV channels and other technologies, such as 4G cellular telephone signals, which operate at approximately 880 MHz, and the so-called Global Positioning System (GPS) signals at 1.228 and 1.575 GHz. The UHF spectrum is ideal for these technologies because such waves are not significantly absorbed by common building materials, making them convenient for use in wireless communications.