"BTIZ" wrote in message
news:0Pu5c.16807$Nj.10761@fed1read01...
[...] granted with minor errors of cheap handheld GPS
units

The "minor errors" exist in all GPS units, no matter the cost. There aren't
any error-free GPS units available.

Not all GPS receivers perform to the same standards, but they all have
errors. No amount of money will change this.

Pete