Joe wrote...
Looking for a schematic to interface a transducer to the serial
port with some programming, Would settle for depth only for now.
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.
Thanks,
- Win
(email: use hill_at_rowland-dot-org for now)
