START-STOP RECEIVERS 233 



but also in determining the characteristics, and hence the accuracy, of 

 start-stop distortion measuring sets and monitoring teletypewriters. 



Finally, there has resulted an improved ability to analyze and predict the 

 performance of transmission links from the results of distortion measure- 

 ments made on a start-stop basis. 



References 



1. "Measurement of Telegraph Transmission," H. Nyquist, R. B. Shanck, S. I. Cory, 



Jour., A. I. E. E., March 1927, p. 231. 



2. "Fundamentals of Teletypewriters Used in the Bell System," E. F. Watson, Bell Sys. 



Tech. Jour., October 1938, p. 620. 



3. "A Transmission System for Teletypewriter Exchange Service," R. E. Pierce and E. W. 



Bemis, Bell Sys. Tech. Jour., October 1936, p. 529. 



4. "Recent Developments in the Measurement of Telegraph Transmission," R. B. Shanck, 



F. A. Cowan, S. I. Cory, Bell Sys. Tech. Jour., January 1939, p. 143. 



5. "Der Spielraum des Siemens — Springschreibers," M. J. de Vries, Telegraphen-und 



Ferns prech-Technik , January 1934, p. 7. 



