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category 31
DSC Call 72
track log 35
waypoint 32
depth 89
detour 61
DGPS 92, 93, 123
alarm 77
differential 123, 124
digital selective calling. See DSC
direction display 89
display tab 84
distance and speed 89
distress calls 71, 72, 73, 74, 75, 128,
129
drift 78
DSC 71, 128–129
DSC Tab 71
E
edit
route 21, 22, 23, 60
waypoints 29
editing a waypoint 29
emergency 128
entering data 9
erase track log 35
GPSMAP 378/478 Owner's Manual
exits 17
external power source 2
external voltage
alarm 77
F
faster time 87
FCC 128, 129, 138
field 8
find 17
from 17
from a different location 17, 18
menu 15, 19
finding an item 17–19
find current location 3
Find Menu 17
fishing 82
fish symbols 108
flasher 110
following an automotive route 63
forecast map 98
fronts 97
fuel flow 23
G
getting started 1
going to a destination 14
go to
distress call 73
point 14
position report 73
GPS
off/on 5
options 6
page 6
tips 6
GPS Tab 68
GRI Chain 126
GSD 20 103
GSD 20 Sounder Module 103
GXM 30 Antenna 95, 100
connecting 118
H
heading 90
highways
avoid 87
highway page 48, 85
hiding/showing 48
options menu 49
page layout 49
setup 49
hunt & fish sub tab 82
hurricanes 96
I
ndeX
I
icons 84
identifier 128
information page 19, 43
installation 117
interval 37
invert 50
item details 19
K
keypad 7
L
language 85, 86
legs, track 37
lightning 96
limited warranty 135
lithium-ion battery 2
local time 89
location 6, 26
location format 90, 127
log filter 84
longitude 132
LORAN TD Setup 125
lost satellite reception 5
139
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