So my wife bought me a GPS for my B-day, and I upgraded it to the Garmin
Rino 520, which just came out this month. It hasn't arrived yet, but I'm eagerly waiting. It has a 5 watt GMRS radio (comparable power to patrol and SAR units) for bc emergencies (need a licence to operate it legally), 0.5 watt FRS radio for local communication (doesn't require a licence), 56mb memory for maps, 176x220 color screen. The antenna is a quad-helix, which is supposedly better than the flat antennae used in smaller units. If you expect to be in really deep forest, an external repeater antenna can be used to extend range.
The GPS-loadable topo software (Garmin's proprietary) is extra, and as Cirquerider mentions, 100K scale, so it's best to carry a 24K paper map anyway to cross-correlate (and besides, paper maps and compasses don't run on batteries). You can still use the NG Topo! or Google Earth software, for loading waypoints to/from the GPS to the computer, but maps are not transferable to the GPS (there is a way around this, but it is time-intensive).
The Rino is pricey, but considering its versatility, may be worthwhile.
Bookmarks