alright i hope you are ready for all this info
Garmin eMap
Moving map features
basemap:built-in (north america and south america)map contains state and country boundries, lakes, rivers, streams,
airports, cities, towns, coastlines, state and interstate highways(USA), local thoroughfares and secondary roads within metro areas(USA), federal interdstate highway exit information for services such as food, lodging, and truck, RV, and automotive service stations.
cdrom: Accepts downloadable map detail from GARMIN MapSource CD-ROMs which provide street-level detail, shorelines, topographic elevation information, addresses, listings of nearest restaurants, hotels, ATMs, and more.
Note: requires 8 or 16 mb data card.
MAP SCALE
Screen width scale 500 ft to 3,000 miles
NAVIGATION FEATURES
WAYPOINTS
500 with name and graphic symbol
TRACK LOG
2000 track log points plus 10 saved tracks
TRACBACK:
navigate saved tracks
TRIP COMPUTER
2 resettable odometers, timers, average and max speed
ROUTES
store 1000 map points and 500 user-defined waypoints in up to 50 points each
MAP DATUMS:
108, including on user datum
LOCATION FORMATS
lat/lon, UTM/UPS, MGRS, Maidenhead, user grid and 11 other grids
SUN AND MOON
sun and moon rise and set times, sun and moon position, and moon phase for any day of the year
GPS PERFORMANCE
RECIEVER
Differential-ready, 12 parallel channel GPS reciever continuously tracks and uses up to 12 satellites to compute and update your position
ACQUISITION TIMES
WARM: Approximately 15 seconds
COLD: Approximately 45 seconds
AUTOLOCATE: Approximately 2 minutes
UPDATE RATE
1/second, continuous
ACCURACY
POSITION: 15 Meters (49 ft)RMS
VELOCITY: 0.1 Knot RMS steady state
DYNAMICS
6g's
INTERFACES
RS232 with NMEA 0183, RTCM 104 DGPS and propriety GARMIN data formats
ANTENNA
Built-in patch; standard MCX-type connector for optional external antenna connection
PHYSICAL
SIZE
2.4"W x 5.5"H x 0.8"D (6 x 14 x 2cm)
WEIGHT
6.7 Ounces (190g)
DISPLAY
1.7"W x 2.2"H (120 X 160 pixels)FTSN, 4-level grey scale, with electro-luminescent backlighting
DATA STORAGE
Indefinite; no memory battery required
MAP STORAGE
Optional data card stores detailed map data