[BC] GPS recommendations

[Cowboy]

 The GPS I use is a Garmin WAAS enabled eTrex hand held,
 for proofs with the serial data fed to a laptop.
 Delorme mapping provides more than any of the GPS units
 I've looked at, so I find this arrangement more than adequate.

 Now then...

On Friday 15 June 2012 10:22:08 am Alan E. Gearing wrote:

> With regard to NAD27, keep in mind that according to the FCC the internal 
> algorithm to convert from NAD83/WGS84 to NAD27 does not have acceptable 
> accuracy.  See the footnotes to the Public Notice at the following URL:

 Ain't that just special !
 Those algorythms far exceed a pencil on a topo map, so I'm confused.

 Practically everyone I know does all field work in WGS84 and
 only converts to NAD27 for the filing.

>   Only the professional grade GPS 
> units (read costing multiple thousands of dollars) have sufficiently 
> accurate internal conversion routines.

 After all, it's only OUR money they are spending like a drunken sailor.

-- 
Cowboy