Panasonic 3.0 User Manual

EchoMap v3.0 

63 

Magnetic North: 

The region, some distance from the geographic 

North Pole where the earth’s magnetic lines concentrate. The angle 

between where the magnetic compass points to, magnetic north, and true 

north is the magnetic variation. Magnetic variation is measured in east or 

west. To get true course from magnetic course eastern variations are 

deducted and western variations are added.  In EchoMap, magnetic 

deviation is calculated based on the nearest airport or Navaid. A light, thin 

green tick on the compass indicates true north. 

: 1/60th of a degree of a circle. One nautical mile. 

Nautical Miles (Nm): 

1.15 statute miles equals 1 nautical mile.  All 

distances in EchoMap are in nautical miles. 

NDB (Non-Directional Beacon): 

NDBs can be set to display, or not 

display in the moving map mode according to their distance from the 

aircraft; this is user configurable. NDBs, closest to furthest can also be 
accessed directly through the  D

?

/F5 and INFO/F2 keys. 

Rng (Range): 

The distance from the present position to the destination 

Waypoint measured in nautical miles. 

: 1/60th of a minute of a circle. 

: 0.87 of a nautical mile.  Not currently used in EchoMap. 

Subscriber Communicator (SC): 

The subscriber communicator is 

the unit that simultaneously handles all two-way ORBCOMM data 

transmissions as well as the receiving of GPS signals and sends all data via 

an RS-232 serial port to the computer. 

Trk (Track

): The line over the earth that the aircraft is actually traveling. 

True North: 

Geographic north, located at the North Pole.  True north is 

represented in EchoMap by light green compass tick. 

UTC (Universal Coordinated 

Time): Zulu time, the time in Greenwich, 

England.  This time, provided by the GPS is used to calculate weather age 

in EchoMap.  

Waypoint: 

Any fix used for navigation and defined by latitude and 

longitude coordinates.