What are the different types of UHF radio?
Ultra-vysocofrime (UHF) radio waves are most commonly used for short-range communication systems, such as two-way radios, wireless local computer network technologies such as Wi-Fi and most cellular phones. These radio waves are also used for local broadcast media, such as UHF. Different types of UHF inspection devices use different frequencies in the range of 300 Megahertz (MHz) to 3 Gigahertz (GHz). Special frequencies are often reserved by law for specific types of equipment, with the specifics different according to jurisdiction. UHF radio waves can be picked up by smaller antennas than they require lower frequency radio transmissions, but have a much shorter range.
Most wireless phones use UHF Radio to transfer from a wireless phone to bass phone. In the United States, they transmit the most modern wireless phones at 900 MHz, 1.9 GHz or 2.4 GHz. Early mobile phones had low -range frequencies, but these frequenciesThey were abandoned largely because they can be easily picked up and tapped radio scanners.
Many mobile phones use UHF transmissions. The world's most widespread mobile phone technology, GSM (Global System for Mobile Communications or Group Special), uses UHF radio to transmit information between mobile phone and an antenna of the basic transceiver to connect the phone to the cell network. Most mobile phones in the United States and in most other countries of America are transmitted to the basic station at either 824 to 849 or 1850 to 1910 MHz, while the basic station transfers back to 935 to 1990 or 1930 to 1990 MHz. In the bridge of the other parts of the world, most mobile phones are transmitted at 890 to 915 or 1710 to 1785 MHz and receive at 930 to 960 or 1805 to 1880 MHz.
wireless networks are usually based on UHF radio, even whenSome wireless technologies are transmitted at an even higher frequency in the Super High Frequency band (SHF). Bluetooth devices are transmitted at frequencies between 2402 and 2480 MHz. Many wireless local areas (WLAN) and wireless network of wide areas use UHF signals in the 2.4 GHz band. The best known standard of wireless technology, Wi-Fi, is an example.
UHF frequency also uses many bidirectional radios. Some manual transceivers that are known as Walkie-Talkes are transmitted at frequencies between 400 and 500 MHz or at 900 MHz. Specific assignment of different UHF band frequencies is usually determined by law and varies according to jurisdiction.
For example, in the United States, 14 frequencies are assigned between 4625 and 467,7125 MHZA Radio Service, a set of unlicensed frequencies used for personal and business communication. The overlap is a group of eight UHF frequencies called the general mobile radio service, which also deals with two -way devices that inthey are licensed to use. The industrial/business fund in the United States has reserved for the use of companies licensed by FCC or Federal Communication Commission, several sets of UHF frequencies, between 406 to 413 MHz to 1427 to 1432 MHz.