... Very low cost, and extremely accurate (.01 percent) compace, battery powered measuring equipment Is available greatly easing the task of field measurement. ... This performance is usually expected with 4-wire voice or carrier derived circuits but not normally with 2-wire Loaded circuits. .... aquot;Negative Resistance and Negat and Voice Frequency Repeate Construction Manual, Sectio REA Telephoneanbsp;...
|Title||:||Proceedings of the National Electronics Conference|