90.965

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90.965 is a band that is commonly used in a variety of fields. It is the frequency used for radio services such as television, radio communication and paging. It is also used for monitoring aircraft and wildlife. The 90.965 band is also used in medical diagnosis, radar operation, weather monitoring, remote sensing and many other applications.

In order to accurately use the 90.965 band, a working principle must be established. The working principle depends on the type of application the band is being used for. For example, the frequency range for television broadcasts in the United States is from 54-216 MHz, with some channels located in the 90.965 band. The working principle for coaxial cable transmission, which is used for television broadcasting, is based on the principles of transmission over coaxial cable and frequency modulation (FM).

The 90.965 band is also used for radio communication, such as cellphone transmission. The working principle for radio communication includes the principles of frequency division multiple access (FDMA), which is used to separate different users sharing the same frequency; time division multiple access (TDMA), which is used for sharing a single frequency between different users; and spread spectrum, which is used to increase the range of frequencies available for use.

Other applications of the 90.965 band include medical diagnostics, radiolocation, microwave transmission, and radar operations. Medical diagnostics utilize the principle of electromagnetic radiation to detect abnormalities in the body. Radiolocation uses the principle of range finding and line of sight for locating objects. Microwave transmission uses the principles of waveguide propagation and antenna engineering for communication. Radar operations use the principles of linear frequency modulation (LFM), Doppler processing, and clutter rejection for radar systems.

The 90.965 band is also used in wildlife monitoring and remote sensing applications. For wildlife monitoring, sonar and radar sensors are used to detect biological activity in the environment. For remote sensing applications, the working principle involves the use of electromagnetic radiation to measure properties of the environment, such as humidity, temperature, and composition.

Within the 90.965 band, there are designated frequencies for specific applications. Each frequency is used for a different application, such as television transmission, radio communication, medical diagnostics, and remote sensing. Depending on the application, the working principle may vary.

Overall, the 90.965 band is an important frequency band that is used for many different applications. The working principle for each application depends on the use of the band and the type of equipment used. By understanding the working principle for each application, we can better utilize the 90.965 band to its fullest potential.

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