Have a route on basecamp and on my eTrex30 on the same topo 24k map with the same routing options and the distance is wrong on the device. The distance was longer but as I removed way points, it became shorter. The route is now only 9 points for a 10 mile loop, so it shouldn't be an issue. Anyone experience anything similar? The route started 3 miles longer and is down to only .4 miles longer but obviously something is going on here.
This reply is to move your post to the top in hopes someone can provide help.
Your observations really do not make sense. Some devices will convert an automated route (anything except Direct activity profile) to a Direct route if that is the profile on the unit, but this will be a shorter route on the device.
I’m not sure if a Direct route will automatically be converted to an automated route if the unit profile is something other than direct. But from what you say, the activity profiles and routing options are the same on both the device and BaseCamp. I assume they look visually identical and that the units of distance are the same.
They look exactly the same on the device and map. The only issue is one small area where you go from one trail to another via a direct waypoint (however, the route is a routable set of trails, not direct). I think its a bug though, because as I started removing unnecessary waypoints, the route got closer to the length on Basecamp. Right now this same route says 10.2 miles on my etrex30.
Does seem like a bug in the Etrex 30. On my Basecamp it's showing as 9.8 and as 9.7 on my Etrex 20, probably simply due to different rounding algorithms.
I have experienced the same issue with my eTrex 32x. When I create a route in BM and send it to the device, the distance on the device is much longer. Frustrating.
There's nothing to figure, you get slight discrepancies due to slightly different algorithms between BaseCamp and devices. If it's much longer have a look in BaseCamp at both routes, there will be a difference somewhere.
