大发彩票
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深圳市新进时科技有限公司自主研发的DSG-1000数字电视信号发生ㄨ器，专◆业为教学定制，支持DVB-C,DVB-T/H,ATSC,J.83B,DVB-T2，DVB-S/S2，ISDB-T,DTMB,DAB,DAB+等
频率范围：40-2150MHz，电平范围：0~-45dBm
