Manual switch, superheterodyne receiver , good anti - jamming , with commutator, easy to install.
带手动开关, 超外差接收, 抗干扰性强, 带换向功能, 安装方便.
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Manual Switch Operation : Under load, with door closed and with either or both sources energized operation.
手动开关操作: 欠载, 闭门状态,任一源或者所有源通电.
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