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 can upgrade with v 2.5 for "free". It has a moon and sun "locator" in its 2.5 version of firmware. I am not sure what that means - and would appreciate anyone shedding light on the topic.
Caution: If you want maps of streets, points of interest, etc. -- you can only use Garmin Map Source MetroGuide CD ROMs (USA, United Kingdom, France, Germany, Italy,Sweden and Denmark, or Belgium, Netherlands and Luxembourg $ 124.99 each) with a PC that will load only a portion of the maps onto an 8(`$90) or 16 Meg ($125) cartridge for eMap to use. -- You could connect the GPS to something like Street Atlas on a laptop (or Palm?) , but that would defeat the purpose of a hand held mapping device. I found a lot of interesting things in the last issue of the Compendium. I was expecting some discussion on this list about some of the concepts. It is a great publication. I really liked the "interactive" dial of moving one's hand up a vertical pole - when the hand shadow hit a date line on a horizontal surface - the hand was on the hour mark. Any comments - anyone? Warren Thom (41.649N 88.096W) Allan Pratt wrote: > 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 .000009 (9 millionths) of a degree. Even as far north > as Miami FL, a meter is about .00001 (1 one-hundred-thousanths) of a > degree. At my location, a meter is .0000107 degrees. Do the GPS units > read out to 5 or 6 decimal digits of accuracy? > > Al Pratt > 33 20 36 N > 111 54 14
