Recently started using Raceqs, very cool app. Thanks!
I have a Dual Bluetooth GPS (http://gps.dualav.com/explore-by-product/xgps150a/) which I use for other things like geocaching, etc. In addition to less battery drain and better gps antenna than a phone, it comes with a wrist strap, so I can leave the phone below. It also supports 5hz sampling rate for very accurate positioning, esp when moving.
I used the Dual with RaceQS on Android just yesterday, and that seems to work just fine. But not sure that raceqs takes advantage of the higher sampling rate. A few of the ipad-based chart plotter apps (ie. iNavX or Anchor!) listed on the Dual site as being compatible – presumably in that they can take advantage of the better positioning.
Thoughts? (note: I do not work for Dual)
Chris (Woodside, CA)