Besides the more obvious broadcast, emergency and mobile radio services there are cellular and cordless telephones, radar, garage door openers and other remote controls, telemetry, and amateur and CB radio.
Besides the more obvious broadcast, emergency and mobile radio services there are cellular and cordless telephones, radar, garage door openers and other remote controls, telemetry, and amateur and CB radio.
无线电频谱除了广播频段，应急通信频段和移动通信频段以外，还包括蜂窝电话、无绳电话、雷达、遥控器、无线电爱好者和民用频段。