Ultra high frequency (UHF) is the ITU designation for radio frequencies in the range between 300 MHz and 3 GHz, also known as the decimetre band as the wavelengths range from one meter to one decimetre.ltra high frequency (UHF) is the ITU designation for radio frequencies in the range between 300 MHz and 3 GHz, also known as the decimetre band as the wavelengths range from one meter to one decimetre.
The San Diego Unified Port District was created in 1962 after the California State legislature passed Senate Bill 41 and the San Diego County Board of Supervisors certified it. The citizens, in 1964, approved a $10.9 million bond for capital improvements.
San Diego is an important site for fishery and has a good situation (the situation is the location of the city in respect to other areas), because it is next to the ocean, whi â¦ ch makes it a convenient port for other ships to dock and leave for other countries, creating more trade.an Diego is also an important tourist site. Important tourists site in San Diego include Balboa Park, Sea World and Old Town. Tourism boosts economy in the U.S. and San Diego is one of those cities.