telemeter can be suspended upside down with the sensing element 

 immersed in a controllable temperature bath; then, as the bath is 

 altered, an audio oscillator is adjusted for zero beat against the 

 nodulated tone of the RBA-6 receiver. After a number of points have 

 been recorded, a curve can be plotted to serve as the temperature- 

 modulated tone- conversion table. 



REFERENCES 



1. DOW, Willard. Underwater Telemetry: A Telemetering Depth 



Meter, Woods Hole Oceano graphic Institution Ref. 54-39* 

 (Unpublished Manuscript.) 



2. TERMAN, F. E., and J. K. Pettit. Electronic Measurements, 



McGraw-Hill Book Co,, Inc. 1952, New York, N. Y. 



19 



