Tape format Each bit is represented by three 2.484 ms long tones. The first is always 3700 Hz, the middle is 3700 Hz for "0" or 2400 Hz for "1", and the last one is always 2400 Hz. This gives an effective bit rate of 134.2 bit/s. Detection is done through a PLL using LM565.
Tape format Each bit is represented by three 2484 ms long tones The first is always 3700 Hz the middle is 3700 Hz for "0" or 2400 Hz for "1" and the last one is always 2400 Hz This gives an effective bit rate of 1342 bit/s Detection is done through a PLL using LM565