PHPWIND
HELLOCQ
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提个建议:1。dds最好能用电脑和单片机控制.2。带混频,接收输出rssi信号,可以做频谱仪.3。最好用ad9851便宜些.4。频率能扩展.日本有个网站有此功能,现在上不去.
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我最近在做这个ddshttp://www.sp2swj.sp-qrp.pl/dds2_vfo_bfo/dds2_vfo_bfo.htm
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