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![Using a uhf antenna, sdr# in q-branch mode, trying to to see some CW on the HF bands. Any way to eliminate these periodic spikes? : r/RTLSDR Using a uhf antenna, sdr# in q-branch mode, trying to to see some CW on the HF bands. Any way to eliminate these periodic spikes? : r/RTLSDR](https://preview.redd.it/241ykoc3xb051.jpg?auto=webp&s=2898d08c5eaa07a4823ed69e69997c0abcadc0a2)