Hi Allan,
Garmin makes a GPS unit called eMap. It came out in March 2000. It sells
for around $200. Service Merchandise is reducing the line of products they
sell and they have the unit for $150 around here. These units have the 2.04
version of firmware, but with a PC cable ($30 more) you
As most of you know, the US government has relaxed the restrictions on
the GPS system. Supposedly the accuracy has improved from 10 meters to 1
meter. My question is, do the actual GPS units in use permit this
accuracy? At the equator, one degree is 111,308 meters in length.
One-meter is thus
You have been given the wrong information. Before SA was turned off, the
official accuracy was 100 metres (95%) but with 27-28 satellites, typically
accuracy under good conditions was 50-60 metres (95%). Turning off SA
improved accuracy from 5 to 10 times, so at most to just under 10 metres
