Lowrance electronic 500 - Manual (Page 48)

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4. Loading: There may be more than one GPS Data File (*.USR) on the
card. To select a file, press
ENT to activate the selection box, use
↓ or ↑
to highlight the file, then press ENT to accept the selection. Next, press
↓ to
L
OAD
| ENT . The unit will display a completion message when the
data transfer is finished. To return to the Page view, press EXIT | EXIT .
From left to right, these figures show the menu sequence for loading a GPS
Data File from an MMC into AirMap's memory.
Switch to Land Mode
To leave Aviation Mode and switch to Land Mode:
1. Press
MENU | MENU |
↓ to
S YSTEM S ETUP
|
↓ to
D ISABLE A IR M AP
| ENT .
2. Unit asks, "Are you sure you want to turn on land navigation mode?"
3. Press
←|
ENT and the unit switches to Land Mode.
Switch Back to Aviation Mode from Land Mode
To leave Land Mode and switch back to Aviation Mode:
1. Press
MENU | MENU |
↓ to
S YSTEM S ETUP
|
↓ to
E NABLE A IR M AP
| ENT .
2. Unit asks, "Are you sure you want to turn on aviation mode?"
3. Press
←|
ENT and the unit switches to Aviation Mode.
Aviation Utilities
To help you with flight planning, this unit has four aviation utilities
built into it that let you calculate density altitude, true airspeed, wind
speed and direction, plus vertical navigation.
NOTE:
AirMap also includes a set of five general-purpose utilities. These
are discussed in Sec. 4, Utilities.
E6B Altitude/Airspeed Calculator
The Altitude/Airspeed Calculator lets you calculate density altitude or
true airspeed. The screen in the following image appears.
For each item in the top portion of the screen, press the enter key, use
↑ and ↓ to enter the field value, and then press
EXIT when you're done.
You’ll need to enter indicated altitude ( A
LTITUDE
), barometric pressure
( B ARO
) in inches of mercury, outside air temperature ( T EMP
), and cali-
brated airspeed ( CAS ).