U.S. Geological Survey Open-File Report 75–663
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Eaton, J.P., 1975, Notes on some experiments on the application of subtractive compensation to USGS seismic magnetic tape recording and playback systems: U.S. Geological Survey Open-File Report 75–663, 36 p. (Available at http://pubs.usgs.gov/of/1975/0663/.)
I. Introduction
II. Test VCO Bank Design and Performance
III. Compensation Tests on the B&H VR-3700B
IV. Performance of the System Under Strong Modulation and with TimingSignals
V. Compensation Tests with the Sony TC-126 Cassette Recorder
VI. Influence of the Discriminator Output Filter and of the Subcarrier Channel Density on Frequency Response and Dynamic Range of the Data Channel