Preliminar y Specifications for 157SA:

Pending FCC – GMDSS ID

GENERAL: Frequency Range: Navigation Interface: Frequency Range: 155 to 163.6 MHz RS-232 Serial I/O and current NMEA 0183 compatible 155 to 163.6 MHz Number of Channels: Sensitivity: All US, Canadian, and International Channels10 weather channels& expansion channels Clock: Less than .3uV for 12dB SINADLess than .4uV for 20dB quieting Input Voltage: Date and time of day, battery backed Current Drain: 12 VDC +30% - 10% (13.8V nominal) 24VDC option and 120VAC OptionNegative ground (U.S. version)Isolated chassis (C.E.P.T. version) Standby 0.5AReceive 0.6ATransmit 6.0A (25W) 1.5A (1W) Selectivity: Calling Formats: At least 80dB at 25 KHz85dB at 50 KHz or greater FCC ID: All formats per U.S.FCC, ITU-R & IMO for Class A GMDSS SOLAS.EXTENDED DSC, Specified Options BZ6SEA157 ITU Recommendations: IM Ratio: Warranty: Current ITU R. 493 and 541 At least 80dB Two Year - Limited IMO Resolutions: Spurious andImage Rejection: A.694(17), A.609(15) and A.803(19) At least 80dB Memory: Nonvolatile memory for unit’s DSC individual ID number. Nonvolatile memory for Emergency Calls, frequently called DSC ID numbers, Call Groups and Coast Stations with associated alphabetic names. Audio Output: 4W, less than 10% distortioninto 4 Ohms TRANSMITTER: Frequency Range: 155 to 159 MHz Frequency Stability:

Dimensions

5ppm, -30 to +60 C in. (mm) Power Output: 25W. 1W into 50 Ohms Audio Response: 6dB per octave pre-emphasis300 to 3000 Hz Audio Distortion: Less than 10% Spurious andHarmonic Radiation: SEA 1573 lbs (1.4 kg) At least 60dB below rated carrier 7030 - 220
th S.W., Mountlake Terrace, Washington 98043; (425) 771-2182; Fax: (425) 771-2650; www.sea-dmi.com
SEA 157SA(1/2007)Specifications subject to change without notice or obligation.©1998 SEA . All rights reserved. Printed in the U.S.A.