A better GPS?

I find MGPS to be very inaccurate in faster models such as my jets. For example when I look at the track on the map in Studio it shows my jet landing on the grass behind the pilots instead of on the tarmac in front of the pilots, an error of 10-15 metres. After landing and going slowly the track slowly moves over to where the model really is.
Is there another brand of GPS that is proven to be accurate in fast models compatible with Jeti such as powerbox, sm modellbau etc?

Hi Harry,
I am using PowerBox GPS-II / -III in my Jets.
Working quite well.

Ingmar

Don't have jets, only gliders. Use a GPS3 logger from SM that receives GPS and Galileo. On average 3 LON/LAT pairs per second are recorded in the log. More may be possible if the unit is set to 10Hz, I run it at 5HZ. When I walk the glider back to the starting point, I am at 5m accuracy.

Anyway, the Jeti MGPS device has been sold on Amazon since 2012, so it can probably only receive GPS satellites and is somewhat outdated

Das wäre doch etwas für die Selberbauer hier (leider nicht für mich). zB bei den Windsurfern gibt's einige die das so machen. Vor allem in Australien, aber auch hier in Europa. Passende Hardware (Chips) gibt's genügend, die Firmware (muss man natürlich auch selbst schreiben) ist der Knackpunkt. Allerdings ist bei denen nicht die genaue Positionsermittlung das Wichtigste, sondern die Geschwindigkeitsmessung. Und da kommt ausschließlich die Dopplergeschwindigkeitsmessung (= chipabhängig) zum Einsatz. Die Genauigkeiten liegen hier bei so ca. 0,15 kmh horizontal und bei ca. 0,5-0,8 kmh vertikal. Diese Fehlerwerte werden in den Datenfiles, zB für dezentrale weltweite Wettbewerbe, auch ausgewiesen (nennt sich VDOP, HDOP....vertical dillution of precision...etc.).

I cannot speak for the SM one, but after testing of both the MGPS, GPS/II (powerbox) and GPS/III (powerbox), I definitely take Powerbox GPS/III as far better than the other options.

Also, please consider the DIY on rc-thoughts, but with the cost increase in electronics, may not be as competitive as before. It's a decent contraption, and being open source, you can always make your own code.