©2003 Garmin Ltd. and its subsidiaries
Garmin International, Inc.
1200 East 151st Street
Olathe, Kansas 66062, U.S.A.
913/397.8200 fax 913/397.8282
Garmin (Europe) Ltd.
Unit 5, The Quadrangle
Abbey Park Industrial Estate
Romsey, SO51 9DL, U.K.
44/1794.519944 fax 44/1794.519222
Garmin Corporation
No. 68, Jangshu 2nd Rd.
Shijr, Taipei County, Taiwan
886/2.2642.9199 fax 886/2.2642.9099
www.garmin.com
Sonar features
Power output:
500 watts (RMS), 4000 watts
(peak to peak) - dual freq.
400 watts (RMS), 3200 watts
(peak to peak) - single freq.
Frequency:
50/200 kHz - dual or 200 kHz - single
Depth:
1500 foot maximum
1
Display options:
Auto ranging, 2X and 4X auto and
manual zoom, bottom lock, big numbers,
water temperature log, advanced numeric
features for use as NMEA repeater,
3 fish symbol sizes
Alarms:
Fish size, shallow water, deep water,
drift alarm, timer, water temperature,
low battery voltage
Temp sensor auto-sense: Automatically displays temp data
See-Thru
®
technology: Shows weak/strong returns simultaneously
Depth Control Gain (DCG
®
):
Automatically adjusts fishfinder
sensitivity according to depth
Internal memory backup:
Customer settings not lost when unit is
turned off
Physical features
Size:
6.3"W x 6.2"H x 3.25"D (16 x 15.8 x 8.3 cm)
Weight:
2.25 lb (1.02 kg)
Display:
5.0" diagonal, 2.94"W x 4.02"H
(7.5 x 10.2 cm), 234 x 320 pixel, 16-color
sunlight-readable TFT display
Background colors:
Black, blue or white
Backlight:
Multi-level adjustable CCFL backlight
Power input:
10 to 35v DC w/ high voltage protection
Power usage:
17 watts max at 10v DC
Nominal power:
15 watts at 13.8v DC nominal
Case:
Fully gasketed, high-impact plastic alloy
Waterproof:
Waterproof to IEC 529 IPX7 standards,
submerged to 1 meter for 30 minutes
Temperature range:
5ºF to 158ºF (-15ºC to 70ºC)
Accessories
Standard:
Surface/flush mount with knobs
Protective front cover with quick
reference label
Wiring adapter cable
User’s manual
Quick reference guide
Optional:
Second mounting kit
Assorted single and dual
frequency transducers
Speed sensor
10 foot extension cable
20 foot extension cable
Optional transducers: Plastic transom mount with depth/temp
Bronze thru-hull with depth/temp
Plastic thru-hull with depth/temp
In-hull
Temperature sensor
Speed sensor
0403
M01-10140-00
Fishfinder 320C
Specifications are preliminary and subject to change
without notice.
1
Depth capacity is dependent on water salinity,
bottom type and other water conditions.
Color helps
you identify
the intensity
of returns.
Solid returns
show up red,
while less dense
objects show up
blue or green.
Split screen zoom
lets you view
normal and
zoomed screens
simultaneously.
The right of the
LCD displays real-
time sonar for
easy target
detection.
specifications
Bottom lock
feature maintains
a constant view
within a specified
distance of
the bottom.
