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For Eric and Mr. Bill

A

Anonymous

Guest
Eric and Bill,
I'm thinking that perhaps my previous posting got lost, as I responded to an older post on the subject of Aquastar modifications. Perhaps I'm just anxious to hear if my suggestion has any merit, or if it's cost effective to do at all. Thanks as always Bill for your helpfull response.
Quote from previous post>>
Eric, if a may, I would like to make a suggestion for any future modifications to the Aquastar. While reading the archives I learned that Terry in Hawaii did a lot of the beta testing on your prototype Aquastar and that the external frequency adjustment was added to allow the user to filter out RF interference (apparently there was a lot of interfernece on Hawaii) without impacting the sensitivity of the unit.
In my short 8 months of using the Aquastar I haven't needed to use the frequency adjustment, although I do detect near an Air Force base with some fairly powerful radars, and who knows what other transmitters. What I have found is that I do need to adjust the internal SAT and Sensitivity (7/8 turn) pots as I work different beaches. These adjustments, of course, require opening the case, brushing the sand off my fingers and hoping that I don't contaminate the pcb while experimenting with the settings.
It would be very useful to have these two adjustments available externally, although I do realize that more penetrations would increase the chances of a leak. Perhaps there is a way to install magnetically adjusted trim pots as I've seen installed in watertight pressure transducers. It would be great if the two pots had small adjustment knobs installed on top of the case with the other external adjustments.
I've enjoyed the Aquastar immensely and especially enjoy being able to learn from the "Master" and others on this forum.
Respectively,
Don
 
Hi Don,
Firstly, congratulations on the impressive finds you are making with the Aquastar. You are definitely off to a good start (see Beach and Waterhunters Forum for pix).
Secondly, your suggestions for the Aquastar. The addition of a frequency control to counter interference was made long before any tests that Terry did. I have incorporated this control in all my detectors since the early 90
 
Eric,
Thanks so much for your detailed response. I was sure that you were way ahead of me on this idea, but thought I might make a suggestion concerning my own experience with the machine.
One more question: Although I realize that the battery has no memory, is it possible to damage it or degrade it by leaving it on the charger too long? I sometimes forget and leave it on for more than the suggested 12 hours when it's fully discharged.
Thanks again,
Don
I find that many detectorist have not seen the Aquastar and am always glad to put in a plug for you and Bill.
 
Hi Don,
I may have a different battery charger then you have. But I general do not charge over 8 hours. I use a timer in series with my charger for my Aquastar. I also check the voltage to with a volt meter. The best full charge is 17.3 volts. But I consider any thing over 17.0 volts is OK.
The beach that I used to check changes made to my Aquastar. Has 7 different TV and radio station
transmit towers in with in 1 mile. Plus the big Honolulu airport and the Hickam Air Force base is
only 3 miles away.
Please send me a e-mail some time.
Terry in Hawaii
 
thanks
max @ : vabch_surfhunter_max@msn.com or
benns51@cox.net
 
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