What should one look for in the specifications to determine whether a handheld purpose-built GPS receiver provides good navigational consistency under reasonably normal, low-speed conditions? Highly ...
I know the USGS and many others offer free downloadable raster topo maps for almost anywhere. But what if I want vector maps using GPS coords? I'm new to GIS but I would assume there is a de facto ...
The black waterproof rubber seal round my Garmin etrex h has just started to peel away, and while not a major issue at the moment I don't really want to use it in the rough when it's waterproofing is ...
Is there any difference in navigational equipment between the northern and southern hemisphere? We live in the northern hemisphere but will be emigrating to the southern in the next few weeks. We'll ...
I have looked at offerings from MemoryMap and Anquet, but once you scale beyond a small area they become prohibitively expensive.