Do any of the Garmin aviation handheld GPS units include obstruction data?
The Garmin GPS III Pilot, GPSMAP 196, and GPSMAP 295 do not have vertical obstruction data such as radio towers standard in the Jeppesen database. Obstruction data is included on the Mapsource Topographic CDs that can be used as an option with the GPSMAP 196 and 295 units.