Lowrance electronic LMS-334c iGPS - Manual (Page 179)

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The Trails Menu (left). Trail Options menu with Distance set as the
update criteria (right).
Update Trail Criteria
The options are automatic, time or distance. When it's in the default
automatic mode, the unit doesn't update the plot trail while you're
traveling in a straight line. Once you deviate from a straight line, the
unit drops a plot point (trail waypoint) onto the trail. This conserves
plot trail points. If a plot trail uses all of the available points allotted to
it, the beginning points are taken away and placed at the end of the trail.
From the Trails Menu, press
→ to
T
RAIL
O
PTIONS
| ENT |
↓ to
U
PDATE
C
RI-
TERIA
. Use
↑ ↓ to select criteria type and press
ENT .
Trail Update Rate
You can update a trail by time, with a range from 1 to 9999 seconds.
The default is 3 seconds. You can also update by distance with a range
from 0.01 to 9.99 mile/nm/km. The default is 0.10 mi.
With Time or Distance selected as the update criteria, highlight the
dialog box and press
ENT . Press
↑ ↓ to change the first character, then
press
→ to the next character and repeat until the desired figure has
been input. Press EXIT to return to the Trail Options Menu.
Specific Trail Options
New Trail
To start a new trail from the Trails Menu, highlight N
EW
T
RAIL
| ENT .
Delete Trail
From the Trails Menu, press
↓ to a saved trail|
ENT . The Edit Trail
menu appears. Press
→ to
D ELETE T RAIL
| ENT |
← to
Y ES
| ENT .