Reradiating the GPS antenna signal for isolation is an interesting idea. I had not considered it. I had a Trimble Scout handheld GPS that used that method to couple in a magnet mounted car rooftop GPS antenna signal into the built in antenna inside the handheld. It used a little clip on reradiating adapter.
Wish the Trimble Scout was still alive. It had an excellent well thought out feature set in software. It's display gradually quit working and Trimble considered it obsolete and unreparable when I asked six or seven years ago. I saw one of those units in a GPS historical display in the Smithsonian museum in Washington. That's when you know your technology is becoming dated. Hi! Thanks, Charles S. Osborne Technical Director Pisgah Astronomical Research Institute 1 PARI Drive, HC 73, Box 638 Rosman, NC 28772-9614 http://www.pari.edu 828-862-5813 direct 828-862-5554 main 828-862-5877 FAX [EMAIL PROTECTED] ----- Original Message ----- From: "Bjorn Gabrielsson" <[EMAIL PROTECTED]> To: "Charles S. Osborne" <[EMAIL PROTECTED]> Cc: "Discussion of precise time and frequency measurement" <[email protected]> Sent: Thursday, January 05, 2006 8:53 AM Subject: Re: [time-nuts] GPS receiver replacements for UT+ > "Charles S. Osborne" <[EMAIL PROTECTED]> writes: > > > If this has come up before, I must have missed it. Frequent lightning storms > > in summer keeps me in the hunt for these boards. Even with lightning > > protection on the coaxes the EMP still gets a few every year. > > Ever tried a reradiating antenna to further separate the GPS from the > dangerous outside? Does such a solution have any technical drawbacks > wrt timing accuracy? > > It might not be cheaper than to buy a new lowcost oem receiver board, > but if you want to protect hard to replace units it could be a > solution. > > I have only used the "professional" type of kits like found here, > > http://www.navtechgps.com/supply/rerad.asp > > I know there is also a lower end market for use inside cars and the > like, > > http://www.prairie.mb.ca/tri_m.htm > > > -- > > Björn > _______________________________________________ time-nuts mailing list [email protected] https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
