TRF Lifetime Supporter
- Nov 25, 2009
- Reaction score
- Central Illinois
Wow Norman, That form factor would be easier to mount in a rocket. Nonetheless, The GPS trackers out there are sufficient to effect a recovery. One tip I like to give is blow the main at as high an altitude that one's launch venue would be practical with. Under a good main, the positions are more likely to stream in and give a drift pattern. In a large enough field I'll blow the main at 1000'. Altitude is good for radio propagation.Wowsers. That took longer to find than I'd anticipated..... https://www.gnss.store/gnss-gps-mod...s-receiver-board-with-sma-for-uav-robots.html Still available but slightly different and certainly more expensive.... I seem to remember that after the Ublox5 was released, although the chipsets became more sensitive and you could pick up GNSS satelites that the dynamic performance became legally reduced to prevent use in guided things that hurt people.
Just out of curiosity, I went downstairs and found out I saved the dead ublox 5 GPS module with the amplified helical antenna. I also found my prototype EggFinder I hacked with a GPS chipset I think I bought from an English concern. I don't remember the designation offhand. I originally dropped the EggFinder and the patch antenna broke off the base. It ended up in my junk drawer until I decided to desolder the base and added this GPS (from England) with a helical receiver antenna with two wires. This GPS chipset isn't amplified but gave really good performance using GPS and the Glonass constellations. I notice the helical antenna is a little shorter than the Ublox 5 unit. Dang! I wished I would have spent the $400.00 or so to get some backup Ublox units when they were available. I recall it gave excellent performance even from my basement. I presume the receiver amplifier was the key there.
Once my son is done using the computer to watch videos, I'll stick the units on the scanner and post them.