multifrequency signal वाक्य

उदाहरण वाक्य

1. This was also an in-band system but, instead of using multifrequency signals for digits, it used four 35 ms pulses of tone, separated by 35 ms of silence, to represent digits in four-bit binary code, with 2400 Hz as a'0'and 2040 Hz as a'1 '.