<html><head><meta http-equiv="content-type" content="text/html; charset=utf-8"></head><body dir="auto"><div style="-webkit-text-size-adjust: auto;">Thanks Alec,</div><div style="-webkit-text-size-adjust: auto;">I had a look at the Interfase scout, & they make comment that .....</div><div><span style="-webkit-text-size-adjust: auto; background-color: rgba(255, 255, 255, 0);">" The unit is not designed to provide forward "bottom" image, but will provide a bottom chart mode directly under the boat. Some limitations are observed in very shallow ranges."</span></div><div><span style="-webkit-text-size-adjust: auto; background-color: rgba(255, 255, 255, 0);">That's a bit of a warning that 2 of you haven't had much success.</span></div><div><span style="-webkit-text-size-adjust: auto; background-color: rgba(255, 255, 255, 0);">Just had a a look at a guy experimenting with a fish finder for forward sonar on a ROV.</span></div><div><span style="-webkit-text-size-adjust: auto; background-color: rgba(255, 255, 255, 0);">He was really having trouble interpreting what was happening with the on screen</span></div><div><span style="-webkit-text-size-adjust: auto; background-color: rgba(255, 255, 255, 0);">representation of a bucket moving toward the transducer in his swimming pool.</span></div><div><span style="-webkit-text-size-adjust: auto; background-color: rgba(255, 255, 255, 0);">( there are other nuts out there)</span></div><div><span style="-webkit-text-size-adjust: auto; background-color: rgba(255, 255, 255, 0);">Alan</span></div><div><span style="-webkit-text-size-adjust: auto; background-color: rgba(255, 255, 255, 0);"><br></span></div><div><span style="-webkit-text-size-adjust: auto; background-color: rgba(255, 255, 255, 0);"><br></span></div><div><span style="-webkit-text-size-adjust: auto;"> <br></span><br><span style="-webkit-text-size-adjust: auto;">Sent from my iPad</span></div><div style="-webkit-text-size-adjust: auto;"><br>On 9/10/2014, at 12:00 am, Alec Smyth via Personal_Submersibles <<a href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>> wrote:<br><br></div><blockquote type="cite" style="-webkit-text-size-adjust: auto;"><div><div dir="ltr">Hi Alan,<div><br></div><div>I made multiple attempts to use an Interphase Vista, which sounds a lot like what you're describing, but was never able to make anything of what I saw on the display and ended ecup getting rid of it. Technically I suppose it worked, but I could not interpret the images. I know far better ones are available now, but if what you're looking at is an Interphase, I would suggest it might be worth while going for the next step up price-wise.</div><div><br></div><div>Best,</div><div><br>Alec</div></div><div class="gmail_extra"><br><div class="gmail_quote">On Wed, Oct 8, 2014 at 5:55 AM, Alan James via Personal_Submersibles <span dir="ltr"><<a href="mailto:personal_submersibles@psubs.org" target="_blank">personal_submersibles@psubs.org</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div><div style="color:#000;background-color:#fff;font-family:HelveticaNeue,Helvetica Neue,Helvetica,Arial,Lucida Grande,sans-serif;font-size:16px"><div dir="ltr">Has anyone had any experience or know anything about forward scanners.</div><div dir="ltr">I'm reading.....<span style="font-family:Verdana,Helvetica,Arial,sans-serif;font-size:12px">Without moving parts, the ForwardScan transducer is more akin to a conventional sounder that has been tipped on its side. Its effective range is about eight times the actual depth, up to about 160 feet ahead of the boat. It includes a built-in shallow depth alarm with parameters set by the user. In deep water, this is great for detecting rocks and pinnacles. Of course, if you are operating in shallow waters such as the Bahamas or portions of the Chesapeake the eight-to-one ratio begins to work against you.</span></div><div dir="ltr">This seems to indicate that if you are cruising 5ft off the bottom or closer in a submarine, you won't get much warning for collision avoidance from the alarm settings These would just pick up on the bottom 5ft below rather than an obstruction coming off the bottom in the distance. Can these be mounted so the angle of the beam runs parralel to the sea bed, pointing more up than down? Or do I leave as is & forget about the alarm function. Am I just as well off buying a fish finder & mounting that forward facing? </div><div dir="ltr">Regards Alan.<br></div><div></div></div></div><br>_______________________________________________<br>
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