OPERATING SYSTEM HOST PC

     Windows 2000

 OPERATING MODE

     CTFM (Continuous Transmission

                       Frequency Modulated)

 OPERATING FREQUENCY

    Swept Band (CTFM)

    ACTIVE (water):          205 to 220 kHz

     ACTIVE (test):             100 to 115 kHz

     PASSIVE:                       20 to 50 kHz

 RANGE SCALES

         FEET                      METERS

        2 -  20                   0.5 - 6

         5  -  50                   1.5 - 15

       20 - 200                  6.0 - 60

       50 - 500                  5.0 - 150

     200 - 2000             60.0 - 600

 TYPICAL MAXIMUM RANGE

     1500 Feet

 RANGE RESOLUTION

     1% to 2% of Range Scale

 SCAN RATE

     360° Coverage in 8 Seconds

            (45° per second)

 SCAN MODES

      Off, 30°, 90°, 180°, 360°

 DEPTH RATING

      3000 psi

 EMERGENCY BEACON FREQUENCY TUNING

      20 to 50 kHz

 COMMUNICATIONS INTERFACE

     PROTOCOL:                 RS-485 / RS-422

     WIRES REQUIRED:     2 for 485; 4 for 422

AZIMUTH RESOLUTION   

          3 Degrees

OPERATING INTERFACE

      DISPLAY    Plan position Indicator,

                          Full circle or Sector,

                          5 Range Rings

        COMMANDS

            Mode       (SONAR or  BEACON)

            Range Scale

            Beacon Tune

            Audio Level

            Receiver Gain

            Target Display Threshold

            Sector Scan (30°, 90°, 180°, 360°)

            Scan Reverse

POWER

      Power                      30 Watts

      Line Voltage           95 to 125 Vrms

      Line Voltage (alt)  220 - 250 Vrms                           

      Line Frequency      50 – 60 Hz

      Line Current           .25 amps @ 115 VAC

      Voltage Isolation   1600 Vrms

DIMENSIONS

      Scanning Mechanism

            Height (without

                 Transducers)      5.25”

            Diameter                  4.5”

      Electronics Unit

          Length                      11.5”

            Diameter                   4.5”

CONNECTORS

      On Training               Burton

         Mechanism            5999-1149-C002

      On Cylinder (to

         Training Mech)      5999-1149-C002

      Cylinder (Power &    Impulse

         Telemetry)              MHDG-7-BCR