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微功率无线模块 rola 一样吗 rola模块传输距离
4G天线的具体频率是多少 2G基站:5261GSM:9001800MHz;4102CDMA:1653800MHz;3G基站:CDMA2000&WCDMA:2100MHz;TD-SCDMA:1880-1920,2010-2025,2320-2...
4G天线的具体频率是多少 2G基站:5261GSM:9001800MHz;4102CDMA:1653800MHz;3G基站:CDMA2000&WCDMA:2100MHz;TD-SCDMA:1880-1920,2010-2025,2320-2...