Looking for cheap radar gun to check speeds.

[hyperasus]

Ok I bought a Bushnell Velocity off ebay for $69.99. Hopefully it should work.

[jhautz]

Anyone use GPS for speed testing? Anyone have any sugestions as to a good, small, light GPS unit for strapping into a truck?

[BrianG]

If you use a GPS, make sure it has a fast enough sampling rate to be accurate. The Garmin I have in my car seems to update every second. In an R/C, you could hit a top speed that may not register on the GPS unless it is sustained.

[MetalMan]

Originally Posted by BrianG

If you use a GPS, make sure it has a fast enough sampling rate to be accurate. The Garmin I have in my car seems to update every second. In an R/C, you could hit a top speed that may not register on the GPS unless it is sustained.

I use a Garmin eTrex, and it too seems to update only once a second. When you're at full throttle for only 1sec. because you don't have much room during a speed run, it can be frustrating.