[aprssig] A question for an electronic design tech./ engineer
Steve Noskowicz noskosteve at yahoo.comSat Sep 22 15:44:13 UTC 2012
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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) Up to date APRS Beginner Guide - updated Oct-2011 http://K9DCI.home.comcast.net Click 'APRS Beginner INFO' under Contact Manage Radio Memories with an Excel Spreadsheet ! Click to tune. Click to capture Radio freq. All Memories on one page. Cut, Copy, Paste, Print 'em, etc... For: TM-D700 | TH-F6A & F7 | TS-2000 | Icom 706MkIIG All PMs |Real-time & memories | Sat mems too | Loads Mem Tones! |Also does MCP.fx files NOT D710| A version for the D7 is in the works. More Details, Features and Downloads at: http://k9dci.home.comcast.net/ --- 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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