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James A. Van Allen journal, October 1955-March 1958
Page 213
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in conjunction with J.P.L. Ludwig proposed as follows: DO-1 for first Jupiter flight: ___________________ 1) No storage 2) Our cosmic ray counter with scale of (2 exponent 5) amplitude modulating an 80 mw. 108 [mw?]/second transmitter suitable for minitrack ( plus 3 environmental bits of info) and perhaps amateur reception. Battery life: 2 weeks 3) Our cosmic ray counters with scale of (2 exponent 5) plus 3 different (from[item above] (2)) environmental measures -- phase modulating a 10mw. transmitter at 108 mc per second ( freq differs from (2) by 0.03 mc/second. Battery life: 2 months Primarily for micro[c?]lock reception --------------
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in conjunction with J.P.L. Ludwig proposed as follows: DO-1 for first Jupiter flight: ___________________ 1) No storage 2) Our cosmic ray counter with scale of (2 exponent 5) amplitude modulating an 80 mw. 108 [mw?]/second transmitter suitable for minitrack ( plus 3 environmental bits of info) and perhaps amateur reception. Battery life: 2 weeks 3) Our cosmic ray counters with scale of (2 exponent 5) plus 3 different (from[item above] (2)) environmental measures -- phase modulating a 10mw. transmitter at 108 mc per second ( freq differs from (2) by 0.03 mc/second. Battery life: 2 months Primarily for micro[c?]lock reception --------------
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