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[aprssig] A question for an electronic design tech./ engineer

Steve Noskowicz noskosteve at yahoo.com
Sat Sep 22 15:51:47 UTC 2012



Saw your added info after sending.

I would also be highly inclined to use another technology including a processor, but info on the way it is used would still be helpful.


73, Steve, K9DCI  

-------
..additional criteria: be able to with stand down to 4 ATM's, neutral to slightly neg. buoyancy, small able to be held in one hand.

https://sites.google.com/site/kendiver/PingerConstruction1.pdf

Clay AA3JY


--- On Sat, 9/22/12, Steve Noskowicz <noskosteve at yahoo.com> wrote:

> From: Steve Noskowicz <noskosteve at yahoo.com>
> Subject: Re: [aprssig] A question for an electronic design tech./ engineer
> To: AA3JY at Winlink.org, "TAPR APRS Mailing List" <aprssig at tapr.org>
> Date: Saturday, September 22, 2012, 10:44 AM
> 
> Hi Clay,
> 
>  It would help greatly if you gave information about what
> this is to be used for. It doesn't say, but appears to
> either be for finding the transmitting unit, or just knowing
> if the transmitter is near.
> 
>  What is the enviromnent this will be used in?
>  What is the maximum distance that the receiver needs to
> hear the transmitter?
>  Does it need to have direction finding ability, or just
> proximity?
>  Does the transmitter need to last for a long time?
> 
>  I actually consulted in the design of a product slightly
> similar and had to solve some of the problems mentioned in
> the paper. 
>  If manufactured as described in that paper, it may very
> well be more expensive than needed due to the tuning
> procedure and special components. 
> However, There is a good chance there is an easier way to
> accomplish the desired result.
> 
>   I also consulted on another project that used
> completely different technology that could be quite
> inexpensive for locating a "pinging transmitting unit".
> 
>   Please provide more information about the use of the
> "pinger". 
>  Direct email, via arrl.net, or my web site Contact page.
> 
> 73, Steve, K9DCI  USN (Vet)  MOT (Ret)  Ham
> (Yet)
> 
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>     Click 'APRS Beginner INFO' under Contact
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> 
> --- On Sat, 9/22/12, AA3JY at Winlink.org
> <AA3JY at Winlink.org>
> wrote:
> 
> > From: AA3JY at Winlink.org
> <AA3JY at Winlink.org>
> > Subject: [aprssig]  A question for an electronic
> design tech./ engineer
> > To: kc6ete at gmail.com
> > Cc: aprssig at tapr.org
> > Date: Saturday, September 22, 2012, 5:50 AM
> > David-
> > 
> > Currently looking at the cost of a single unit with a
> > possibility of future units..
> > 
> > https://sites.google.com/site/kendiver/PingerConstruction1.pdf
> > 
> > Thanks,
> > 
> > Clay AA3JY
> > 
> > 
> > _______________________________________________
> > aprssig mailing list
> > aprssig at tapr.org
> > https://www.tapr.org/cgi-bin/mailman/listinfo/aprssig
> > 
> 
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