Panasonic 3.0 사용자 설명서

EchoMap v3.0

positioned below the heading indicator. If there is no GPS altitude

available, this area will display as a red and white slashed bar that

says NO ALT or NO GPS. Terrain and tower alert conditions are

always calculated, even when terrain and towers are not being

displayed on the map.

3.6.1 Terrain Alert Indicator

Echomap will display a terrain alert icon if there

is terrain within 8 minutes ( based on your

current GPS ground speed ) and 500 ft of your

current altitude. Although the terrain alert

indicator is always enabled, you have the

option of deciding whether or not you want to view the color

coded areas of conflicting terrain on the moving map as shown on

the next page.
EchoMap provides advisory worldwide terrain elevation data. The

terrain database is derived from the USGS GTOPO30 global digital

elevation model (DEM). Elevations are regularly spaced at 30-arc

seconds (about 1 Km). Elevations are stored in 100ft increments

to save disk space. The terrain data may contain some degree of

error (especially outside of the United States). By rounding up to

the nearest 100ft, we help to insure that the error is on the side of

caution. It is possible that some terrain features will not be

depicted in the data. Terrain data should never be used for

primary surface navigation

3.6.2 Tower Alert Indicator

Echomap will display a tower alert icon if there

is a tower within 8 minutes ( based on the

current GPS ground speed ) and 500 ft of your

current altitude. The tower alert function is

always enabled, and if there is a conflict the

obstacles are automatically displayed on the

moving map with the same color coding shown for terrain.

3.6.3 Terrain Alert Display