My Garmin 305 arrived yesterday. I charged the battery last night, and tonight I gave it a try running out the driveway onto Hwy 138, then west on Hwy 138 about 200 feet, then back, then back down our driveway. The plot on the Garmin data did not show me actually on Hwy 138. It looked like it was off calibration about 20 or 30 feet. Also, the driveway and Hwy 138 are flat, but the Garmin showed 33 feet elevation gain, and 45 feet elevation loss. I'll have to see what to do about calibration. |