Fee: $ 0.00 per 14 days
Band-pass filters are items to have on each station which is in SO2R category or any Multi-Operator category ( M/S, M/2, M/M). Filters help to minimize harmonics to allow a few bands simultaneous operation. 15, 20, 40, 80 band BPFs are Cauer type, 10 and 160 band BPFs are Chebyshev type.
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