![]() The embargo caused fuel shortages and that led to rationing, which made it difficult to locate gas supplies. government responded by lowering the national highway maximum speed to 55 mph. There was an oil crisis when OPEC, a group of oil producing countries, declared an oil embargo. When And Why Did CBs Become Popular?īack in the 70s, CB became very popular. Class D began with only 23 channels, but more were added to bring CB to the current 40 channels in 1977. Ten years later Class D was established, becoming the forerunner of CB radio. ![]() That makes sense, as less expensive CB equipment offers the general public the chance to communicate with each other short distances over various CB frequencies without the expense, study and then the waiting period for getting an FCC license.Ĭlass A and B radio services were established in 1948, which formed the basis of the Family Radio Service. The Federal Communications Commission (FCC), which still regulates CB, took bands from the UHF band (460-470 megacycles) for personal and business communication, as well as for controlling model aircraft. Citizens Band (CB) radio dates back to the 1940s.
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