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James A. Van Allen journal, October 1955-March 1958
Page 275
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10) He agrees with (9?) & will do. 11) Also suggested increasing scaling factor on stored data from 128 to 256 or 512 to give greater dynamic range. Probably not time to make this change! ---- Ludwig also suggested a very promising new possibility for reading data out of the noise. -- Namely: - beating the subcarrier (after passing through narrow filter) with a fixed frequency oscillator signal, to make an oscilloscope Lisasjou figure. As the frequency jumps, the Lissajou figure should go into confusion. Then reform when the subcarrier returns to original value. -->
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10) He agrees with (9?) & will do. 11) Also suggested increasing scaling factor on stored data from 128 to 256 or 512 to give greater dynamic range. Probably not time to make this change! ---- Ludwig also suggested a very promising new possibility for reading data out of the noise. -- Namely: - beating the subcarrier (after passing through narrow filter) with a fixed frequency oscillator signal, to make an oscilloscope Lisasjou figure. As the frequency jumps, the Lissajou figure should go into confusion. Then reform when the subcarrier returns to original value. -->
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