Re: [PSUBS-MAILIST] Re: SONAR

[Lew Clayman <lew_clayman@yahoo.com>]

--- Matt Cadieux <compkid15@earthlink.net> wrote:
> In order for a sonar to work it has to "hit" against something and bounce
> back so an upward facing sonar would only give you readings if you were
> under something.  SO it would only really be good to check when your
> surfacing to make sure that your not coming up under a boat other then that
> it would give no reading.

Couldn't someone out there test this topic pretty easily and let us all know for sure?

Science begins, as they say, with observation...

One concern that strikes me is this: if the thing can "see" the surface, and if it can "see" boats
at the surface, does it have the resolution to make out really small/shallow draft boats, say
under 6" draft as many little dinghies and inflatables are?

And related, if it can "see" the surface, how does chop etc influence readings?

Easy for me to ask, I don't got no sub anyhow...

-Lew


=====
"Yo no soy marinero / Soy capitan"
          - Traditional Mexican Lyric (La Bamba)
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