Lowrance electronic 500 - Manual (Page 84)

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Map Menu, left, Map Orientation window with
the North Up map orientation option selected.
By default, this receiver shows the map with north always at the top of
the screen. This is the way most maps and charts are printed on paper.
This is fine if you're always traveling due north. What you see to your
left corresponds to the left side of the map, to your right is shown on
the right side of the map, and so on. However, if you travel any other
direction, the map doesn't line up with your view of the world.
To correct this problem, a track-up mode rotates the map as you turn.
Thus, what you see on the left side of the screen should always be to
your left, and so on. Another option is course-up mode, which keeps the
map at the same orientation as the initial bearing to the waypoint.
When either the track-up or course-up mode is on, an "N" shows on the
map screen to help you see which direction is north .
To select the desired mode, first press the MENU key, then select M
AP
O RIENTATION
, then select the desired mode. Press the EXIT key to erase
this menu.
Navionics

Charts
Your AirMap can display Navionics

electronic charts on MMCs. They
work just like a MapCreate custom map on an MMC.
To display a Navionics chart:
1. Install the Navionics MMC in the memory card compartment and
turn on the unit. (For full card install instructions, see Sec. 2.)
WARNING:
You should never format the MMC containing your Navionics
chart. Formatting the MMC will permanently erase the chart
from the card.
2. From the Map Page, press MENU |
↓ to
M
AP
D
ATA
| ENT |
↓ to
M
AP
C HOICE
| ENT . Use
↑ or ↓ to select the Map Name, then press
ENT | EXIT | EXIT .