| 需要2套 bpf，以减小比赛时换滤波器的工作量，2×$318=￥4400——太贵了，强烈考虑diy，就怕diy的时间成本还不如买了，再斗争一会儿吧。
A reintroduction of a product first featured in 1994, Model 419B is a six position bandpass transceiving filter for HF services. Constructed in an I.C.E. standard heavy case measuring (HWD) 31/2" X 71/2" X 8
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160m |
