December 2021 raw audio data at 9999 kHz using Grape 1 for radio station JJ1BDX

This dataset contains all audio data (WAV, 8kHz S16_LE monaural) for the analysis of 10MHz standard frequency stations (mostly BPM, including WWVH and WWV) for HamSCI December 2021 Eclipse Festival recorded at radio station JJ1BDX in Setagaya City, Tokyo, Japan. Other references: See https://github.com/jj1bdx/hamsci-202112-freqdata for the analysis results. See https://github.com/jj1bdx/dcrx-10MHz-design/ for the technical specification of the direct conversion receiver HamSCI Grape 1.