Trip Odometer Accuracy?
2026157
It's adding up the noise from repeated measurements. That will always tend to make it read high. This is less of an effect when the signal strength is very good, or you are moving fast. Basically, the noise in the position information looks like a random walk on top of the path you take. (visualize it as if its constantly bouncing around you, like a hyperactive puppy on a 15 foot leash. If you walk slowly for 10 miles in s traight line, the puppy will walk a much longer path to get to the same place.) Try telling it to record on a slower interval, or shutting it off when you stop for lunch. Also, upload the data to MapSource and look at it. Sometimes it goes nuts, and gets one bad data point far away from where you are. The software will dutifully add in the round trip distance to that bad point to your total. If you delete the one bad point, you'll get the right distance.
1806569
It's a nice feature but it is inaccurate in the mileage dept. I found that there are better options out there. When I tried to correct the hos to actual time it wouldn't let me and said that nothing could be changed in it.
1992357
I have found mine to be very accurate, although sometimes it will be off usually about a quarter mile for a 10 miles ruen. I think it has more to do with the movement or adjustment of the satelites rather than the watch, since I have noticed on the peaks website that sometimes the course is really off and has me starting out in Lake Erie. There is not really much you can do about it and all brands pretty much use the same gps. If I am running a course for time, I always measure it by my bike or car for better accuracy. I did do a 10 mile race last fall and it showed 10.07 which was very good. Trees and turns or switchbacks can through it off as well. I have found mine to be very accurate, although sometimes it will be off usually about a quarter mile for a 10 miles ruen. I think it has more to do with the movement or adjustment of the satelites rather than the watch, since I have noticed on the peaks website that sometimes the course is really off and has me starting out in Lake Erie. There is not really much you can do about it and all brands pretty much use the same gps. If I am running a course for time, I always measure it by my bike or car for better accuracy. I did do a 10 mile race last fall and it showed 10.07 which was very... » Read More I have found mine to be very accurate, although sometimes it will be off usually about a quarter mile for a 10 miles ruen. I think it has more to do with the movement or adjustment of the satelites rather than the watch, since I have noticed on the peaks website that sometimes the course is really off and has me starting out in Lake Erie. There is not really much you can do about it and all brands pretty much use the same gps. If I am running a course for time, I always measure it by my bike or car for better accuracy. I did do a 10 mile race last fall and it showed 10.07 which was very good. Trees and turns or switchbacks can through it off as well. « Show Less
122563
Yes. I was told that it can be a little off if there are a lot of GPS watches in the area, but I have found it to be pretty accurate.
441562
No there is no where to input that data. I would not recommend this GPS, although it is sold as a RV GPS the first road it tried to have me go on was a parkway (cars only) with low bridges even after I put in the RV height.
2059996
Thanks for the help. I've set the tracking to "auto least often" and that seems to nail the distance pretty well. Did a measured 2.6 mile hike out and back through some fairly heavy cover and got 2.63 one way and 2.65 the other. Close enough. Funny though, Garmin "admitted" this was an accuracy problem. Told me the fix was downloadable on their site, with the Web Updater, but I've decided not to mess with it. Don't want their gremlins crawling around inside unless I have no choice.
2235997
I doubt that it is "accurate" in terms of being calibrated to any significant extent. I just line the up the disk to where I want it and it is very close to my floor pumps reading. I just use it to finish my ride if I get a flat. If I'm within 10 psi I'm happy enough to get home.
811934
Yes, Magellan's directions are accurate nearly all of the time. Your routing choices are the biggest variation. Yet, very occasionally Magellan will go astray. A good dose of common sense helps a lot in interpreting routing.
1322632
I don't know.. However, it's not as accurate as I would have expected. I suppose for the price it's close enough.
680249
It calculates miles per gallon as you operate the vehicle (otherwise based on your mileage is during travel). I've used the garmin a few times on long road trips and have checked the mileage with by dividing trip miles by gallons and its pretty accurate by 2-4 tenths of mile. Their are some neat features like water temperature, MAF, rpm, and a couple of other things. Fun toy knowing what the car is doing.
503574
Hello...there are 3 buttons on the computer. The button on the far left must be held down until your trip odometer resets. Some times I have had to push and hold...let up on button....and then push again. Please don't try to use the instruction manual that came with the odometer. The instructions that are written on the back of the computer are much easier to follow. Sure hope this helps. Have a great weekend, Barb
1992359
I have found mine to be very accurate, although sometimes it will be off usually about a quarter mile for a 10 miles ruen. I think it has more to do with the movement or adjustment of the satelites rather than the watch, since I have noticed on the peaks website that sometimes the course is really off and has me starting out in Lake Erie. There is not really much you can do about it and all brands pretty much use the same gps. If I am running a course for time, I always measure it by my bike or car for better accuracy. I did do a 10 mile race last fall and it showed 10.07 which was very good. Trees and turns or switchbacks can through it off as well.
1380029
I am NOT an expert by any means, however when I am in the tunnels in Boston I lose the GPS signal and it doesn't seem to be able to estimate where we are. The Garmin I had before could. I hope this helps!
2137484
Sorry but the only way of verifying that is to ride beside a car. Using a GPS wouldn't be accurate. I haven't done either one.
716046
flat out we havent a clue how accurate the number is. but the one I bought is consistant. the calibration knob is used to get your SWR its not used to calibrate the meter
102776
Go to settings, scroll to stamp, I set mine to "vehicle number", so when viewing the data, it should show Date/Time, GPS location, vehicle number....no speed. You can also go to you tube, look up "TechMoan", he gives a pretty good review of the 0801 and all the settings. Hope this helps
1656251
Yes it does give an address of where it is parked. It Is quite accurate. Lots of nice features.