Hi TPRThe Topcon Hiper II appears to be the same receiver - different colour, different badge. So that's maybe an option if Topcon support is better i...

> 11) Surveyors work in feet, tenths, and hundredths. The only people who work in inches are carpenters and... and... and... > > I can't rem...

If pacing an approximate grid for a topo in open terrain: count 'double paces', ie only when the left (or right) foot hits the ground. A 20 yard grid ...

It takes so little extra effort and time to log the data that it's worth doing, as others have said you just don't know when you might need it. It's n...

Set out a house foundation for a friend a while back. He wanted it to be aligned to face due south, we set up a stick and marked the end of the shadow...

Mr. Artie Kay> What on Earth have you chosen as an avatar? If you were in the southern US one might guess it to be the legendary chupacabra.Holy C...

Not strictly 'houses' any more at 5000 or so years old, but I was involved in a survey here for coastal protection, which we tied to existing survey c...

In Scotland and probably the rest of the UK it's a 'piercing rod' or 'piercer'. There's a bigger version known as a quarry spike or quarry bar - still...

Very interesting Christof, thanks for that. Reminds me how basic things still are in Scotland in spite of the system havings its origins 700 years ago...

Thanks Phil and Steve.That NTA2442 battery looks as if it's for the Allegro CX data collector which was sold with these units. The GPS battery is flat...