300 BPS AC-3 Acoustic Modem (260-1174) Specifications Faxback Doc. # 5680 COMPATIBILITY: RECEIVER SENSITIVITY: -3 to -42 dBm MODEM: Bell 103 TRANSMIT LEVEL: -9 dBm to -17 dBm DIALER: Manual TONE DIAL LEVEL: None DATA RATES: 110, 150, 300 baud LINE IMPEDANCE: 600 Ohms SPEED SELECT: Automatic RINGER EQUIVALENCE: 0.0 B CMD BUFFER: N/A MODULATION: SPEAKER: On 300 BAUD: Frequency Shift DATA FORMATS: Serial binary, Keyed (FSK) Asynchronous DIALING: None TESTING MODES: None (dtc-08/04/93)