Fishfinder Transom Mount
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 Eagle Cuda 350 S Map Sonar GPS Fish Finder  US $155.00
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 GARMIN TRANSOM MOUNT DEPTH AND TEMPERATURE TRANSDUCER PART NO 010 10272 00 US $59.00
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 Lowrance Elite 4 DSI Combo Base GPS Fishfinder with transducer 000 10494 001 US $348.00
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 Lowrance Elite 5x DSI Fishfinder W Transducer 10235 001 US $394.99
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 Raymarine Dsm 250 Raystar 128 And A Triducer Airmar P66 US $150.00
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 Humminbird 798ci Hd Si Combo 407970 1 US $924.98
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 Lowrance Elite 5 Dsi Color Combo Fishfinder chartplotter 000 10236 001 US $577.55
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 Garmin GPSMAP 546s BRAND NEW PN 010 00774 01 US $869.00
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 GARMIN GPSMAP 135 168 178 178C 420s 430s 431s 440s 441s TRANSOM MOUNT TRANSDUCER US $54.95
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 NEW GARMIN ECHO 500C COLOR FISHFINDER DUAL BEAM XDUCER 010 00954 00 US $299.99
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 Lowrance Mark 4 Chartplotter Fishfinder NEW 000 10483 004 Nautic PRO US $239.00
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 Lowrance Mark 4 Chartplotter Fishfinder BRAND NEW IN BOX 000 10483 001 US $189.00
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 GARMIN FISHFINDER 160 160C 240 250 250C 300C 320C 340C TRANSOM MOUNT TRANSDUCER US $54.95
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 NEW GARMIN OEM TRANSOM MOUNT TRANSDUCER for GPSMAP 546s 720s 740s GSD 20 21 22 US $66.00
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 Humminbird 385ci Combo W Internal Antenna 407680 1 US $355.48
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 NEW GARMIN OEM TRANSOM MOUNT TRANSDUCER for FISHFINDER 100 160 240 250 GSD 21 22 US $74.95
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 GARMIN GPSMAP 421S GPS CHART FISHFINDER COMBO WITH T M US $421.99
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 Garmin Gpsmap 541s GPS Receiver Brand New in the Box with Transducer US $680.00
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 GARMIN GPSMAP 185 298 398 498 520s 525s 530s 531s 535s TRANSOM MOUNT TRANSDUCER US $54.95
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 GARMIN GPSMAP 525 GPS Marine Navigation Chartplotter 010 00597 00 US $404.95
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 Humminbird Fishfinder 597ci Hd Di Combo Down Imaging Combo 408120 1 US $626.89
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 HUMMINBIRD FISHFINDER 597CI HD DI COMBO DOWN IMAGING COMBO 408120 1 US $720.15
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 Lowrance Elite 5 DSI Color Combo Fishfinder Chartplotter 10236 001 US $599.00
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 Humminbird 365i Combo W Internal Antenna 407670 1 US $278.99
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 GARMIN GPSMAP 188C 238 298 398 TRANSOM MOUNT TRANSDUCER US $66.00
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 GARMIN GPSMAP 421S GPS CHART FISHFINDER COMBO WITH T M 010 00764 01 US $447.75
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 GARMIN GPSMAP 441S W TRANSDUCER PN 010 00766 01 US $474.00
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 GARMIN GPSMAP 546s 720s 740s TRANSOM MOUNT TRANSDUCER w DEPTH TEMPERATURE SPEED US $74.95
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 Garmin Transducer 50 200kHz Transom Mount 010 10272 00 US $68.95
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 GARMIN GPSMAP 546 Marine GPS Navigator Chartplotter Fishfinder 010 00774 00 US $733.95
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 GARMIN GPSMAP 440s 441s 541s TRANSOM MOUNT TRANSDUCER US $66.00
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 NEW GARMIN OEM TRANSOM MOUNT TRANSDUCER for GPSMAP 530s 531s 535s 540s 541s 545s US $66.00
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 GARMIN GPSMAP 420s 430s 440s TRANSOM MOUNT TRANSDUCER US $54.95
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 GARMIN GPSMAP 545s GPS Sonar Chartplotter Navigator Fishfinder 010 00602 00 US $639.95
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 GARMIN GPSMAP 531s 535s 536s TRANSOM MOUNT TRANSDUCER US $54.95
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 Humminbird 365i 4 Inch Waterproof Marine GPS and Chartplotter NEW US $264.99
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 GARMIN GPSMAP 421s GPS Sonar Chartplotter Transducr Fishfinder 010 00764 01 US $431.50
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 Humminbird 788ci Hd Combo 407950 1 US $615.98
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 Garmin Gpsmap 521s Gps Chart Fishfinder W o Xducer 010 00760 02 US $573.55
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 GARMIN GPSMAP 441S 520S 521S TRANSOM MOUNT TRANSDUCER DEPTH TEMPERATURE SPEED US $74.95
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 GARMIN GPSMAP 135 168 178 178C TRANSOM MOUNT TRANSDUCER DEPTH TEMPERATURE SPEED US $74.95
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 GARMIN GPSMAP 541S GPS CHART FISHFINDER W TM XDUCER US $713.88
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 Garmin GPSMAP 421S GPS Dual Frequency Combo US $454.49
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 GARMIN GPSMAP 540S 541S 545S TRANSOM MOUNT TRANSDUCER DEPTH TEMPERATURE SPEED US $74.95
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 GARMIN GPSMAP 430S 431S 440S TRANSOM MOUNT TRANSDUCER DEPTH TEMPERATURE SPEED US $74.95
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 GARMIN GPSMAP 540 545 720S 740S TRANSOM MOUNT TRANSDUCER DEPTH TEMPERATURE SPEED US $74.95
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 GARMIN GPSMAP 420S 421S 430 440 TRANSOM MOUNT TRANSDUCER DEPTH TEMPERATURE SPEED US $74.95
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 GARMIN GPSMAP 541S GPS CHART FISHFINDER W O XDUCER 010 00762 02 US $662.94
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 Humminbird 407970 1 798ci Hd Si Gps Color Fishing System 4079701 US $1,049.99
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 Humminbird 798ci SI Fish Finder 5 Active Matrix US $1,051.96
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 Garmin GPSMAP 421S GPS Chartplotter Fishfinder Combo w o Transducer US $401.79
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 GARMIN GPSMAP 521S GPS CHART FISHFINDER W TM XDUCER 010 00760 01 US $665.92
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 Humminbird 587ci HD Combo Fish Finder 45quot Active Matrix TFT Color US $518.39
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 Humminbird 798ci SI Fish Finder 5quot Active Matrix TFT Color LCD 4 US $1,059.07
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 Combo Lowrance Elite 5 Gold GPS fishfinder 000 00144 001 Chartplotter preloaded US $585.00
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 Raymarine E22054 Raymarine ST40 Bidata Display w TM Transducer Kit US $374.38
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 GARMIN GPSMAP 421S GPS CHART FISHFINDER COMBO W O XDUCER 010 00764 02 US $408.70
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 Garmin 010 00762 02 Garmin GPSMAP 541S Chartplotter Fishfinder Combo w o Transdu US $719.20
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 Garmin 010 00764 02 Garmin GPSMAP 421S GPS Chartplotter Fishfinder Combo w o Tra US $439.27
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 Garmin 010 00772 02 Garmin GPSMAP 526S Chartplotter Fishfinder Combo w o Transdu US $852.17
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 GARMIN GPSMAP 531S 535S 536S TRANSOM MOUNT TRANSDUCER DEPTH TEMPERATURE SPEED US $74.95
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 GARMIN GPSMAP 525S 526S 530S TRANSOM MOUNT TRANSDUCER DEPTH TEMPERATURE SPEED US $74.95
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 GARMIN GPSMAP 520 530 525 535 TRANSOM MOUNT TRANSDUCER DEPTH TEMPERATURE SPEED US $74.95
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 Garmin GPSMAP 521S GPS Chartplotter Fishfinder w o Transducer US $577.43
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 GARMIN GPSMAP 541S GPS CHART FISHFINDER W TM XDUCER 010 00762 01 US $751.36
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 Garmin 010 00952 00 Garmin echo 300c Color Dual BM Fishfinder TM Trolling Transd US $232.43
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 GARMIN GPSMAP 536S GPS CHART FISHFINDER DUAL BEAM TM 010 00773 01 US $891.52
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 Raymarine A57D 57 Fishfinder Chartplotter Combo TM Transducer No Charts E62188 US $685.88
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 Hummingbird 407970 1 FISHFINDER 798CI HD SI COMBO Kit US $1,073.77
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 Garmin 010 00955 00 Garmin echo 550c Color Dual BM Fishfinder TM Trolling Transd US $449.03
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 Garmin 010 00953 00 Garmin echo 200 Dual Beam 5 Fishfinder TM Trolling Transduc US $171.77
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 Garmin 010 00760 02 Garmin GPSMAP 521S GPS Chartplotter Fishfinder w o Transduce US $623.30
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 Lowrance HDS 7 Gen2 Insight USA GPS Receiver with 50 200 transducer fishfinder US $999.00
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 Humminbird New 788ci HD DI Combo Fishfinder 408130 1 US $703.99
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 Humminbird New 788ci HD Combo Internal GPS Fishfinder 407950 1 US $614.99
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 Lowrance Elite 5 DSI Color Fishfinder Chartplotter Model 000 10236 001 US $599.00
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 Lowrance Elite 5 Gold Combo w 83 200 KHz TM US $642.64
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 LOWRANCE ELITE 5 GOLD COMBO BUNDLE W 83 200 KHZ TRANSOM MOUNT 144 001 US $619.00
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 Hummingbird Fishfinder 597Ci HD US $699.99
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 Hummingbird Fishfinder 587Ci HD US $477.42
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How to Mount Your Fish Finder Transduer
There are several different methods you can use to mount your fish finder. In this article mounting refers to attaching the transducer to your watercraft- boat, kayak, float tube, etc. “Mounting” your fish finder display is a separate topic. The common methods are: transom mount, thru hull, and portable mounts. There is also a “Shoot Thru” hull mounted transducer, but this type is less common.
As the name suggests, a transom mount model mounts on the transom of the boat. The best mounting location is at the bottom of the transom, with the transducer face (bottom) parallel or nearly parallel to the transom itself. All major manufacturers recommend that installation be completed out of the water. In order to minimize turbulence and aeration around the unit, do not mount the transducer along strakes, behind thru hull fittings or other hull irregularities as they can cause unusual disturbances around the transducer and cause improper readings.
Thru Hull units, when properly installed, typically offer better fish detection and overall performance than other mounting methods. Since this mounting method requires drilling or cutting a hole through the hull, all thru hull installations should be completed while the boat is in dry dock. As with transom mounted models, thru-hull transducers should be completely submerged in water with good water flow through the unit. Objects such as strakes, fittings and propeller wash can disturb the water flow and cause inaccurate readings. Work to avoid any areas where the water flow will be uneven or disturbed. To eliminate leaks it is imperative to seal any holes between the transducer and hull. It is generally best to have a professional install a thru-hull model.
Portable fish finders are the easiest to install, if they need any installation at all. Some portable fish finders have a transducer with a suction cup mounting system. Just take these models and stick the suction cup to your boat, kayak or float tube beneath the water line so that they are completely submerged. Again, make sure the transducer can have free, uninterrupted water flow. Humminbird also makes a line of portable fishfinders that use a clamp to attach the entire fish finder to your watercraft. The transducer is at the bottom of the fish finder shaft and will be submerged as all transducers should be.
There are also some portable fish finders that need no mounting at all. The Humminbird SmartCast series has a remote sensor fish finder that is wireless. Simply attach the sensor to your fishing line and cast it along with the bait. It will provide signals back to the display so you can see if there are any fish near your line. This type of fishfinder is an excellent choice for shallow water fishing.
The last mounting method is the “Shoot thru” transducer. Unlike thru-hull models, shoot thru models do not require a hole in the boat’s hull. Instead the unit is placed inside the hull and transmits and receives signals from there. This type of fish finder works only with fiberglass hulls and as with other methods, placement is critical. Usually a flat spot in the aft bilge area is the best location, but check with a professional.
There are several ways to attach a shoot thru model. They can be bolted on or some can be fiberglassed or epoxied to the hull. There are also some shoot thru models that are encased in a special enclosing. A professional can help you choose the right method for your fish finder and your boat.
Fish finder mounts can be difficult depending on the type. If you have any doubts about how to mount your model, it is always best to get professional help.
About the Author
Karen Janos is an expert on fish finders. When she is not fishing she is the webmaster for http://www.fishfindersdirect.com.