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.
South San Diego's boundaries are the city of Imperial Beach on the west, Chula Vista to the north, Otay Lakes to the east, and the U.S.-Mexico border with Tijuana on the south. Brown Field Municipal Airport is located in the Otay Mesa region of South San Diego.