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Jon, That sounds like a really great tracking device. Hope one is available to see it at this coming convention. I might have a need for one. Kyle's pinger is not based upon the HBH design but uses the underwater speaker (transducer for solids instead) It is still broadband so would be subjected to the interference you mentioned. This unit sounds much better and more reliable. David Bartsch > Date: Sat, 13 Mar 2010 11:47:45 -0500 > From: jonw@psubs.org > To: personal_submersibles@psubs.org > Subject: Re: [PSUBS-MAILIST] Desert Star Sport > > > If Kyle's pinger is the same HBH designs that I used in Spring testing > of 2008, there's no comparison. Andy Goldstein brought a "Scout" unit > (scaled back sport version) with him to the Maine convention and it > easily outperformed the HBH acoustic pinger that I brought. The Desert > Star unit is ultrasonic which cut through the salt water without issue, > and more importantly it was directional. The HBH/pinger still has a use > I think as a last ditch method of drawing attention to oneself > underwater, and especially since they can be made for about $15. > However, with our Desert Star discount the cost of the ultrasonic units > is somewhere around $120 for the scout, which is quite affordable. The > only drawback I saw with the Desert Star unit was that it did not use > the ABS approved frequency for pingers, 32khz if I remember correctly, > and was centered upward in the 40-50khz range. For tracking purposes by > a surface boat however, that wouldn't matter. > > Jon > > > David Bartsch wrote: > > I am curious as to how the locator pinger on Kyle's #7 measures up > > against the desert star sport for tracking purposes. > > > > > ************************************************************************ > ************************************************************************ > ************************************************************************ > The personal submersibles mailing list complies with the US Federal > CAN-SPAM Act of 2003. Your email address appears in our database > because either you, or someone you know, requested you receive messages > from our organization. > > If you want to be removed from this mailing list simply click on the > link below or send a blank email message to: > removeme-personal_submersibles@psubs.org > > Removal of your email address from this mailing list occurs by an > automated process and should be complete within five minutes of > our server receiving your request. > > PSUBS.ORG > PO Box 53 > Weare, NH 03281 > 603-529-1100 > ************************************************************************ > ************************************************************************ > ************************************************************************ > Hotmail: Trusted email with powerful SPAM protection. Sign up now. |