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LQQking for a Laptop --- Depth/Fish finder project

Discussion in 'Electronic Design' started by Joe, Jun 19, 2004.

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  1. Joe

    Joe Guest

    Looking for a schematic to interface a transducer to the serial port
    with some programming, Would settle for depth only for now.
    remove nospam in email
  2. Joe wrote...
    I do not believe you will be able to find anywhere an "interface"
    between a 200kHz 200W narrow-beam sonar transducer and an RS-232
    serial data port. What you are talking about is a complete sonar
    "system" including a repetition-rate oscillator, a 200W pulse
    generator with high-voltage transformer, a low-noise high-gain
    preamp with TVG (time-variable gain), and a high-speed digitizer
    and data buffer. This collection of exotic items is no doubt most
    cheaply obtained in a commercially-made personal fish finder, with
    an integral computer interface. Or, if you want to "roll-your-own"
    then obtain a low-cost fish finder and add your own DAQ back end.

    - Win

    (email: use hill_at_rowland-dot-org for now)
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