©2003 Garmin Ltd. and its subsidiariesGarmin International, Inc.1200 East 151st StreetOlathe, Kansas 66062, U.S.A.913/397.8200 fax 913/397.8282Garmin (Europe) Ltd.Unit 5, The QuadrangleAbbey Park Industrial EstateRomsey, SO51 9DL, U.K.44/1794.519944 fax 44/1794.519222Garmin CorporationNo. 68, Jangshu 2nd Rd.Shijr, Taipei County, Taiwan886/2.2642.9199 fax 886/2.2642.9099www.garmin.comSonar featuresPower 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 - singleDepth: 1500 foot maximum1Display options: Auto ranging, 2X and 4X auto andmanual zoom, bottom lock, big numbers,water temperature log, advanced numericfeatures for use as NMEA repeater,3 fish symbol sizesAlarms: Fish size, shallow water, deep water,drift alarm, timer, water temperature,low battery voltageTemp sensor auto-sense: Automatically displays temp dataSee-Thru® technology: Shows weak/strong returns simultaneouslyDepth Control Gain (DCG ®):Automatically adjusts fishfindersensitivity according to depthInternal memory backup:Customer settings not lost when unit isturned offPhysical featuresSize: 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-colorsunlight-readable TFT displayBackground colors: Black, blue or whiteBacklight: Multi-level adjustable CCFL backlightPower input: 10 to 35v DC w/ high voltage protectionPower usage: 17 watts max at 10v DCNominal power: 15 watts at 13.8v DC nominalCase: Fully gasketed, high-impact plastic alloyWaterproof: Waterproof to IEC 529 IPX7 standards,submerged to 1 meter for 30 minutesTemperature range: 5ºF to 158ºF (-15ºC to 70ºC)AccessoriesStandard: Surface/flush mount with knobsProtective front cover with quickreference labelWiring adapter cableUser’s manualQuick reference guideOptional: Second mounting kitAssorted single and dualfrequency transducersSpeed sensor10 foot extension cable20 foot extension cableOptional transducers: Plastic transom mount with depth/tempBronze thru-hull with depth/tempPlastic thru-hull with depth/tempIn-hullTemperature sensorSpeed sensor0403 M01-10140-00Fishfinder 320CSpecifications are preliminary and subject to changewithout notice.1 Depth capacity is dependent on water salinity,bottom type and other water conditions.Color helpsyou identifythe intensityof returns.Solid returnsshow up red,while less denseobjects show upblue or green.Split screen zoomlets you viewnormal andzoomed screenssimultaneously.The right of theLCD displays real-time sonar foreasy targetdetection.specificationsBottom lockfeature maintainsa constant viewwithin a specifieddistance ofthe bottom.