1. Apply marine-grade silicone sealant to the drilled holes for the mounting bracket. 2. Place the mounting bracket on the mounting surface, aligning with the drilled holes. 3. Insert the four #8 Phillips countersink wood screws into the mounting holes and hand tighten only!

Pivot Knuckle

Gimbal Knob

Thumbknob Bolt

Figure 7

Mounting Holes

4. Insert the thumbknob bolt through the pivot knuckle on the control head (Figure 7). 5. Align the pivot knuckle with the mount base arms and slide into place, twisting slightly if necessary, until the unit is firmly seated. 6. Rotate the control head to the desired angle and hand tighten the thumbknob bolt. 7. Thread the gimbal knob onto the pivot bolt and tighten.
Attaching the Cables to the Control Head
Follow these steps to attach the power and transducer cables to the control head: 1. Matching the cable plugs to the shape and orientation of the sockets, insert the transducer and power cables into the correct sockets on the control head (Figure 8).
Power Temperature Transducer

Figure 8

2. With the control head in place, tilt and/or swivel the unit through its full range to make sure there is enough cable slack for the unit to move freely. Hand tighten the thumbknob bolt when you achieve the desired position for the control head.
You are now ready to install the transducer. See Transducer Installation Overview and then find the section that refers to your transducer type.
Transducer Installation Overview
The transducer can be installed on the transom of the boat, inside the hull, or onto a trolling motor, depending on your transducer type. The type of transducer you have will also determine how the cable will be routed. Go to the section that describes your transducer, and follow the steps to position and mount the transducer on your boat.
NOTE: Due to the wide variety of hulls, only general instructions are presented in this installation guide. Each boat hull represents a unique set of requirements that should be evaluated prior to installation. It is important to read the instructions completely and understand the mounting guidelines before beginning installation. NOTE: If the included transducer will not work for your application, you may exchange it, NEW and UNASSEMBLED, with mounting hardware included, for a transducer appropriate for your application - often at very little or no charge depending on the transducer. Call the Humminbird Customer Resource Center at 1-800-633-1468 for details and pricing, or visit www.humminbird.com. NOTE: In addition to the hardware supplied with your transducer, you will need a powered hand drill and various drill bits, various hand tools, including a ruler or straightedge, a level, a 12" plumb line (weighted string or monofilament line), marker or pencil, safety glasses and dust mask, and marine-grade silicone sealant. NOTE: When drilling holes in fiberglass hulls, it is best to start with a smaller bit and use progressively larger drill bits to reduce the chance of chipping or flaking the outer coating.

Transom Transducer Installation
Locating the Transducer Mounting Position
Turbulence: You must first determine the best location on the transom to install the transducer. It is very important to locate the transducer in an area that is relatively free of turbulent water. Consider the following to find the best location with the least amount of turbulence:
Areas of Possible Turbulence

Rivets Transom

Strakes Hull

Figure 9 Stepped Hull

As the boat moves through the water, turbulence is generated by the weight of the boat and the thrust of the propeller(s) - either clockwise or counter-clockwise. This turbulent water is normally confined to areas immediately aft of ribs, strakes or rows of rivets on the bottom of the boat, and in the immediate area of the propeller(s). Clockwise propellers create more turbulence on the port side. On outboard or inboard/outboard boats, it is best to locate the transducer at least 15" to the side of the propeller(s) (Figure 11). The best way to locate turbulence-free water is to view the transom while the boat is moving. This method is recommended if maximum high-speed operation is a high priority. If this is not possible, select a location on the transom where the hull forward of this location is smooth, flat and free of protrusions or ribs (Figure 9).

Figure 10

On boats with stepped hulls, it may be possible to mount the transducer on the step. Do not mount the transducer on the transom behind a step to avoid popping the transducer out of the water at higher speeds; the transducer must remain in the water for the control head to maintain the sonar signal (Figure 10).
If the transom is behind the propeller(s), it may be impossible to find an area clear from turbulence, and a different mounting technique or transducer type should be considered, such as an Inside the Hull Transducer. If you plan to trailer your boat, do not mount the transducer too close to trailer bunks or rollers to avoid moving or damaging the transducer during loading and unloading of the boat. If high speed operation is critical, you may want to consider using an In-Hull transducer instead of this Transom Mount transducer.

Deadrise Angle

Find a turbulence-free location at least 15 from the propeller(s) and not in line with trailer bunks or rollers. (Figure 11).

Figure 12

NOTE: The hydrodynamic shape of your transducer allows it to point straight down without deadrise adjustment (Figure 12).
NOTE: If you cannot find a transom mount location that will work for your high-speed application, find an In-Hull Transducer by contacting our Customer Resource Center at either 1-800-633-1468 or by visiting our website at www.humminbird.com. 10
Preparing the Mounting Location
Positioning the Mounting Bracket
After determining the mounting location for the transducer, follow the steps below to position and mount the transducer bracket. 1. Make sure that the boat is level on the trailer, both from port to starboard and from bow to stern, by placing your level on the deck of the boat, first in one direction, then in the other. 2. Hold the mounting bracket against the transom of the boat in the location you have selected (Figure 13). Align the bracket horizontally, using the level; make sure that the lower screw hole protrusion does not protrude past the bottom of the hull, and there is at least 1/4" clearance between the bottom of the bracket and the bottom of the transom for fiberglass boats, and 1/8" clearance for aluminum boats (Figure 14).
NOTE: If you have a flat-bottomed aluminum boat, some additional adjustment may be needed to accommodate the rivets on the bottom of the boat (i.e. the gap may need to be a little smaller than 1/8"). This will help you to avoid excessive turbulence at high speeds.

Figure 13

Boat Hull Types Require Different Mounting Positions
1/8 for aluminum NOTE: If your propeller moves clockwise (in forward, as 1/8 for aluminum 1/4 for fiberglass you're facing the stern of the boat from behind), mount 1 Figure 14
Using the Mounting Bracket to Mark the Initial Drill Holes

Mark Initial Drill Holes

3rd hole

Figure 15

the transducer on the starboard side. If your propeller moves counter-clockwise (in forward, as you're facing the stern of the boat from behind), mount the transducer on the port side.
3. Continue to hold the bracket on the transom of the boat, and use a pencil or marker to mark where to drill the two mounting holes. Mark the drill holes near the top of each slot, making sure that your mark is centered in the slot (Figure 15).

NOTE: The third hole should not be drilled until the angle and height of the transducer is finalized, which you will not do until a later procedure. 11
4. Make sure that the drill bit is perpendicular to the actual surface of the transom, NOT parallel to the ground, before you drill. Using a 5/32 bit, drill the two holes only to a depth of approximately 1.
NOTE: On fiberglass hulls, it is best to use progressively larger drill bits to reduce the chance of chipping or flaking the outer coating.
Assembling the Transducer and Initial Mounting
In this procedure, you will assemble the transducer using the hardware provided, then mount it and make adjustments to its position without locking it in place.
NOTE: You will initially assemble the transducer and the mounting bracket by matching the two ratchets to a numbered position on the transducer knuckle. Further adjustments may be necessary.
1a. If you already know your transom angle, refer to the chart below for the initial position to use to set the ratchets (Figure 16). If your transom is angled at 14 degrees (a common transom angle for many boats) use position 1 for the ratchets. In either case, go to step 2.

Bead Alignment Number

0.0 cm 0

1.1cm 1/2

2.5 cm 1

4.3 cm 1 5/8

5.9 cm 2 3/8

7.6 cm 3

9.3cm 3 5/8

11.1cm 4 3/8

12.9cm 5

14.9cm 5 7/8

16.9cm 6 5/8
Transom Angle () -2 -Measured Distance (x)

Figure 16

Measuring the Transom Angle
Plumb line Transom Angle in degrees ()

Weight

1b. If you do not know your transom angle, measure it using a plumb line (weighted nylon string or monofilament line) exactly 12 inches long. Hold the top of the plumb line against the top of the transom with your finger, and wait until the line hangs straight down (Figure 17). Using a ruler, measure the distance from the bottom of the plumb line to the back of the transom, then use the chart (Figure 16).
NOTE: It is important to take your measurement in the location shown in Figure 17, from exactly 12 inches down from the top of the transom. 12

Measured Distance (X)

Figure 17
2. Place the two ratchets, one on either side of the transducer knuckle, so that the beads on each ratchet line up with the desired position number on the knuckle (Figure 18a). If you are setting the ratchets at position 1, the beads on each ratchet will line up with the rib on the transducer knuckle to form one continuous line on the assembly (Figure 18b).
NOTE: The ratchets are keyed; make sure that the square teeth on each ratchet face the square teeth on the transducer knuckle, and the triangular teeth face outward.

Hold the ratchets on the transducer knuckle with one hand and fit the mounting bracket over them until it snaps into place with the other hand. Refer to the illustration (Figure 18d).
Transducer Knuckle Positions

Knuckle

Ratchets Placed in Position 1

Beads Ratchet

Rib at position 1

Figure 18a

Figure 18b
Ratchets Placed in Position 2
Fitting the Mounting Bracket Over the Ratchet

Rib Ratchet

Figure 18c

Figure 18d

Inserting the Pivot Bolt
3. Put the pivot bolt through the assembly to hold it in position and loosely install the nut, but do NOT tighten the nut at this time (Figure 19). 4. Align the mounting bracket transducer assembly with the drilled holes in the transom. With a 5/16" socket driver, mount the assembly to the transom using the two #10 - 1" long screws provided (Figure 20). Hand tighten only!
NOTE: Make sure that the mounting screws are snug, but do not fully tighten the mounting screws at this time to allow the transducer assembly to slide for adjustment purposes.
Figure 19 Mounting the Assembly to the Transom

Figure 20

5. Adjust the initial angle of the transducer from back to front by rotating the transducer until the side seam on the transducer is almost parallel with the bottom of the boat, one click at a time in either direction (Figure 21 and 22).
Adjusting the Initial Transducer Angle
One click too high Correctly aligned (transducer side seam aligned with boat bottom) Trailing edge Leading edge One click too low

Figure 21

Figure 22
Adjusting the Transducer Mounting Position
6. Adjust the transducer assembly vertically, until the seam on the leading edge of the transducer (the edge closest to the transom of the boat) is level and just slightly below the hull (Figure 23).
NOTE: The transducer has a natural downward slant of 4-5 degrees from leading edge (closest to the boat transom) to trailing edge (farthest away from the boat). Looking at the back of the transducer, the seam should be slightly below the bottom of the hull.
Seam aligned with boat hull

Figure 23 Leveling the Mounting Assembly Horizontally
7. Continue to adjust until the bracket is also level from port to starboard (horizontally level as you look at the transducer from behind the boat (Figure 24). 8. Mark the correct position on the transom by tracing the silhouette of the transducer mounting bracket with a pencil or marker.
9. Tighten the pivot bolt, using the pivot screw and nut to lock the assembly. Hand tighten only! 10. Hand-tighten the two mounting screws.

Figure 24

NOTE: You will drill the third mounting hole and finalize the installation after you route the cable and test and finish the installation in the following procedures.

Routing the Cable

The transducer cable has a low profile connector, which must be routed to the point where the control head is mounted. There are several ways to route the transducer cable to the area where the control head is installed. The most common procedure routes the cable through the transom into the boat.
NOTE: Your boat may have a pre-existing wiring channel or conduit that you can use for the transducer cable.
1. Unplug the other end of the transducer cable from the control head. (The transducer cable was connected in the earlier section Attaching the Cables to the Control Head). Make sure that the cable is long enough to accommodate the planned route by running the cable over the transom.
CAUTION! Do not cut or shorten the transducer cable, and try not to damage the cable insulation. Route the cable as far as possible from any VHF radio antenna cables or tachometer cables to reduce the possibility of interference. If the cable is too short, extension cables are available to extend the transducer cable up to a total of 50'. For assistance, contact the Customer Resource Center at www.humminbird.com or call 1-800-633-1468 for more information. NOTE: Allow enough slack in the cable for slight movement at the pivot point. It is best to route the cable to the side of the transducer so the transducer will not damage the cable during movement.
2a. If you are routing the cable over the transom of the boat, secure the cable by attaching the cable clamp to the transom, drilling 9/64" diameter holes for #8 x 5/8" wood screws, then skip directly to step 5 to connect the cable. or. 2b. If you will be routing the cable through a hole in the transom, drill a 5/8" diameter hole above the waterline. Route the cable through this hole, then fill the hole with marine-grade silicone sealant and proceed to the next step immediately.

3. Place the escutcheon plate over the cable hole and use it as a guide to mark the two escutcheon plate mounting holes. Remove the plate, drill two 9/64" diameter x 5/8" deep holes, and then fill both holes with marine-grade silicone sealant. Place the escutcheon plate over the cable hole and attach with two #8 x 5/8" wood screws. Hand tighten only! 4. Route and secure the cable by attaching the cable clamp to the transom; drill one 9/64" diameter x 5/8" deep hole, then fill hole with marine-grade silicone sealant, then attach the cable clamp using a #8 x 5/8" screw. Hand tighten only!
Figure 25 Storing Excess Cable
NOTE: If there is excess cable that needs to be gathered at one location (as shown in the illustration), dress the cable routed from both directions so that a single loop is left extending from the storage location. Doubling the cable up from this point, form the cable into a coil. Storing excess cable using this method can reduce electronic interference (Figure 26).

Figure 26

5. Plug the cable connector back into the control head. The slots are keyed to prevent reverse installation, so be careful not to force the connector into the holder. Your control head is now ready for operation.
Test and Finish the Installation
Once you have installed both the control head and the transom transducer, and have routed all the cables, you must perform a final test before locking the transducer in place. Testing should be performed with the boat in the water. 1. Press POWER once to turn the control head on. If the unit does not power up, make sure that the connector is fully plugged into the terminal slot and that power is available. 2. If all connections are correct and power is available, the Humminbird control head will enter Normal operation. 3. If the bottom is visible on-screen with a digital depth readout, the unit is working properly. Make sure that the boat is in water greater than 2' but less than the depth capability of the unit, and that the transducer is fully submerged, since the sonar signal cannot pass through air.
NOTE: The transducer must be submerged in water for reliable transducer detection.
4. If the unit is working properly, gradually increase the boat speed to test high-speed performance. If the unit functions well at low speeds, but begins to skip or miss the bottom at higher speeds, the transducer requires adjustment. 5. If you have the correct angle set on the transducer, yet lose a bottom reading at high speed, adjust the height and the running angle in small increments to give you the ideal transducer position for your boat. First, adjust the height in small increments (Figure 23).
NOTE: The deeper the transducer is in the water, the more likely that a rooster tail of spray will be generated at high speeds, so make sure that the transducer is as high as it can be and still be submerged in the water.

If you are still not getting good high speed readings, you may need to disassemble the transducer mounting assembly and re-position the ratchets (Figures 18a - 18d). If you do change the transducer position, re-trace the position of the mounting bracket before proceeding.
NOTE: It is often necessary to make several incremental transducer adjustments before optimum high speed performance is achieved. Due to the wide variety of boat hulls, however, it is not always possible to obtain high speed depth readings.
6. Once you have reached a consistently good sonar signal at the desired speeds, you are ready to lock down the transducer settings. Remove the transducer from the bracket (after noting where the ratchets are assembled), then re-align the mounting bracket against the transom of the boat to match the traced silhouette. Check the bracket position with the level again to make sure it is still level, then mark the third mounting hole using a pencil or marker. Unscrew and remove the mounting screws and the transducer bracket and set aside. 7. Drill the third mounting hole, using a 5/32 drill bit. Use a marine-grade silicone sealant to fill all three drilled mounting holes, especially if the holes penetrated the transom wall.
NOTE: On fiberglass hulls, it is best to use progressively larger drill bits to reduce the chance of chipping or flaking the outer coating. Fully Tighten All Three Mounting Screws

Figure 27

8. Re-position the transducer bracket against the transom of the boat, then hand-install all three screws. Make sure that the transducer location has not changed, then fully tighten all three mounting screws (Figure 27). Hand tighten only! Re-install the transducer to the mounting bracket, making sure to assemble the ratchets in the same location they had before. (See Figures 18a - 18d and Figure 21 - 22). If you have performed the preceding procedures correctly, the transducer should be level and at the right height for optimal operation.
In-hull mounting generally produces good results in single thickness fiberglasshulled boats. Humminbird cannot guarantee depth performance when transmitting and receiving through the hull of the boat, since some signal loss occurs. The amount of loss depends on hull construction and thickness, as well as the installation position and process.

Display

LEFT Arrow Key RIGHT Arrow Key POWER/MENU Key
What You See On the Display
The PiranhaMAX displays underwater information in an easy-to-understand format. The top of the display corresponds to the water surface at the transducer, and the bottom of the display corresponds to the Depth Range automatically selected for the current water depth. The Bottom Contour varies as the depth under the boat changes. Digital readouts provide precise information for depth, fish and water temperature. As the boat moves, terrain and bottom composition variations are displayed. Fish, baitfish and thermoclines (underwater temperature changes) are displayed when detected. Underwater conditions vary greatly, so some experience and interpretation is needed to realize all the benefits of the PiranhaMAX use the following illustration as a guide to the most common conditions and practice using your PiranhaMAX over known bottom types.
PMAX150/190c (Single Beam) and PMAX160/170 (Dual Beam) Display
* Units with 83 kHz Dual Beam sonar show targets in the wide beam as hollow fish icons. 1 - Water Surface Line 2 - Depth - Measured at the Transducer 3 - Temperature 4 - Upper Range 5 - Surface Clutter 6 - Structure 7 - Bottom Contour 8 - Lower Range
9 - 83 kHz, Wide Beam Hollow Fish Symbol (Dual Beam Units only)* 10 - 200 kHz, Narrow Beam Shaded Fish Symbol 11 - 455 kHz, Right Beam Fish Symbol (Tri Beam Unit only)** 12 - 455 kHz, Left Beam Fish Symbol (Tri Beam Unit only)**
PMAX180 (Tri Beam) Display
* Units with 455 kHz Tri Beam sonar show targets in the left beam as left-looking fish symbols, and targets in the right beam as right-looking fish symbols.
PiranhaMAX Sonar Technology
The PiranhaMAX is the easiest to use fishfinder ever. For most anglers, all youll ever need to do is power on and fish! The PiranhaMAX automatically determines depth and makes adjustments to keep the bottom and fish visible on the display. The PiranhaMAX uses sonar technology to send sound waves from the transducer into the water. The returned echoes are plotted on the display, creating a very accurate picture of the underwater world, including distance to underwater objects such as the bottom, fish, and structure.
Your PiranhaMAX will have Single, Dual, or Tri Beam sonar. Find the correct sonar description that applies to your unit.

Single Beam Sonar

The PiranhaMAX150 and PiranhaMAX190c use a 200 kHz single beam sonar system with a 20 area of coverage. Boat speed, wave action, bottom hardness, water conditions and transducer installation can all affect depth capability.

Dual Beam Sonar

The PiranhaMAX160 and PiranhaMAX170 use a 200/83 kHz dual beam sonar system with a wide (60) area of coverage. Dual Beam sonar is optimized to show the greatest bottom definition using a narrow (20) beam yet can still indicate fish found in the wide (60) beam when the Fish ID+TM feature is turned on. Dual Beam is ideal for a wide range of conditions - from shallow to very deep water in both fresh and salt water. Boat speed, wave action, bottom hardness, water conditions and transducer installation can all affect depth capability.

Tri Beam Sonar

The PiranhaMAX180 uses two frequencies and three different sonar elements, one narrow, two wide, that transmit signals to the left, right and straight down from your boat. The downward beam is 200 kHz with a 20 area of coverage. This beam maintains a continuous digital depth readout from the bottom directly beneath your boat. The side beams are 455 kHz with a 35 area of coverage, for a total 90 area of coverage. Boat speed, wave action, bottom hardness, water conditions, and transducer installation can all affect depth capability.

The Menu System

A simple menu system allows you to access your PiranhaMAX adjustable settings. To activate the menu system, press the POWER-MENU key. Press the POWER-MENU key repeatedly to display the PiranhaMAX menu settings, one at a time. When a menu setting is on the display, use the RIGHT and LEFT Arrow keys to adjust the menu setting. Menus settings are saved and removed from the screen automatically after several seconds. In Normal operating mode, most menu settings saved to memory will not return to their default values when the unit is turned off. See individual menu choices for more information.
NOTE: Each time the POWER-MENU key is pressed, the backlight momentarily illuminates for easy viewing at night. Adjust the LIGHT menu setting to keep the backlight on. NOTE: If Simulator Mode is selected from the Start-Up Menu and a transducer is plugged in, some menu setting changes will be saved in memory even after the unit is powered down. Menu setting changes will not be saved from Simulator mode when a transducer is not connected. NOTE: Turning on the SetUp menu choice from the Main Menu System allows you to access additional set-up menu choices. See SetUp Menu for more information.
(Setting Not Saved in Memory) Press the POWER-MENU key until LIGHT appears. Use the backlight for night fishing. Select either 0 (Off), or 1 through 5 to activate the backlight at the desired level. (0 to 5, Default = 0 [PiranhaMAX150/160/170/180]; 0 to 10, Default = 10 [PiranhaMAX190c])

Depth Alarm

(Setting Saved in Memory) Press the POWER-MENU key until DEPTH ALARM appears. Select OFF for no Depth Alarm, or select 3 to 99 feet to set the alarm depth. An audible alarm sounds when the depth is equal to or less than the setting. (Off, 3 to 99 feet, Default = Off)

Filter

(Setting Saved in Memory) Press the POWER-MENU key until FILTER appears. Select either Off or On. Filter adjusts the sonar filter to limit interference on the display from sources such as your boat engine, turbulence, or other sonar devices. (On, Off, Default = Off)

SetUp Menu

(Setting Not Saved in Memory) Press the POWER-MENU key until SetUp appears. Press the RIGHT Arrow key to select On. (Off, On, Default = Off) When you activate SetUp, additional menu choices will become available that are not a part of the Main Menu system. After selecting SetUp, press the POWER-MENU key to display the SetUp menu choices, one at a time. SetUp Menu choices include: Contrast Fish ID+TM Bottom View Battery Alarm Language (International only) Units (International only).
Scroll through all SetUp menu choices to exit the SetUp menu.

Contrast (SetUp Menu)

(Setting Saved in Memory, Monochrome only) Make sure that the SetUp menu is selected, then press the POWER-MENU key until CONTRAST appears. Select a setting from 1 through 5. (1 to 5, Default = 3) Scroll through all SetUp menu choices to exit the SetUp menu.

Fish ID+TM (SetUp Menu)

(Setting Saved in Memory) Make sure that the SetUp menu is selected, then press the POWER-MENU key until FISH ID+TM appears. Select either Off to view raw sonar returns or On to view Fish symbols. Fish ID+TM uses advanced signal processing to interpret sonar returns, and will display a Fish Symbol when very selective requirements are met. A select number of possible fish returns will be displayed with their associated depth. (On, Off, Default = On) Scroll through all SetUp menu choices to exit the SetUp menu. Dual Beam Single Beam
Raw Sonar, Fish ID+TM Off Raw Sonar, Fish ID+TM Off Raw Sonar, Fish ID+TM Off 200 kHz Narrow beam, Fish ID+TM On 200 kHz Narrow beam, Fish ID+TM On 200 kHz Narrow beam, Fish ID+TM On 83 kHz Wide beam, Fish ID+TM On 455 kHz Left and right beam, Fish ID+TM On

3. There is no bottom reading visible on the display.
If the loss of bottom information occurs only at high boat speeds, the transducer needs adjusting see your PiranhaMAX Installation Guide for details. Also, in very deep water, it may be necessary to increase the sensitivity setting manually to maintain a graphic depiction of the bottom. If you are using a transducer switch to connect two transducers to the PiranhaMAX, make sure that the switch is in the correct position to connect a transducer that is in the water. (If a trolling motor transducer is selected and the trolling motor is out of the water, no sonar information appears.) If none of these actions solves the problem, inspect the transducer cable from end to end for breaks, kinks, or cuts in the outer casing of the cable. If the transducer is connected to the unit through a switch, temporarily connect it directly to the unit and try again. If none of these actions identifies an obvious problem, the transducer itself may be at fault. Be sure to include the transducer if returning the unit for repair.
4. When in very shallow water, I get gaps in the bottom reading and inconsistent digital depth indication.
The PiranhaMAX will work reliably in water 3 feet (90 cm) or deeper. Remember that the depth is measured from the transducer, not from the surface of the water.
5. The unit comes on before I press the POWER-MENU key, and wont turn off.
Check the transducer cable if the outer jacket of the cable has been cut and the cable is in contact with bare metal, you will need to repair the cut with electrical tape. If there is no problem with the cable, disconnect the transducer from the unit and see if the problem is corrected, to confirm the source of the problem.
6. I get gaps in the reading at high speeds.
Your transducer needs adjusting. If the transducer is transom-mounted, there are two adjustments available to you: height, and running angle. Make small adjustments and run the boat at high speeds to determine the effect. It may take several tries to optimize high-speed operation. This can also be a result of air or turbulence in the transducer location caused by rivets, ribs, etc.
7. My unit loses power at high speeds.
Your PiranhaMAX has over-voltage protection that turns the unit off when input voltage exceeds 20 VDC. Some outboard motors do not effectively regulate the power output of the engines alternator and can produce voltage in excess of 20 Volts when running at high RPMs.

For More Information: Steve Roth 402/437-6400 steveroth@sramarketing.com

FOR IMMEDIATE RELEASE

With Humminbirds New PiranhaMAX Fishfinders High Tech Is Very Affordable
EUFAULA, Ala. (July 2006) Humminbird is introducing a new line of PiranhaMAX one-touch fishfinders offering high tech sonar, including 90 degree Tri Beam and wireless remote sonar, and high-resolution grayscale screens, at very affordable prices. Our new PiranhaMAX models for 2007 are a great value for anglers seeking a highperforming fishfinder without a big expense, Humminbird Senior Global Product Manager Darrell Watt said. We are excited to offer state-of-the-art technology such as the Tri Beam sonar in an entry level product line. All anglers, regardless of their budgets can benefit from Humminbirds advanced sonar capabilities. Top-of-the-line PiranhaMAX models feature a high-definition, 4-inch, 240 vertical pixel screen, with 8-level inverse grayscale technology, while the entry models feature a 160 vertical pixel screen with 4 level grayscale. All models feature easy-to-use operation that lets the angler just power the unit on and fish with no hassles. Anglers can choose from PiranhaMAX models with Tri Beam, Dual Beam and Single Beam, or combined with Humminbirds SmartCast Wireless Sonar. Tri Beam provides directional fishfinding that indicates whether fish are to the left, right or below the boat. Tri Beam sonar also offers an exceptionally wide view of the bottom by combining a 20 degree down-looking beam and two 35 degree beams for total 90 degree coverage. Fish in the narrow beam appear as solid symbols, while the fish in the outside beams appear as outline symbols, pointing either right or left to indicate which side of the boat they are located. Total coverage for fish is equal to twice the depth, so anglers see an area much wider with Tri Beam. -more
With Humminbirds New PiranhaMAX Fishfinders High Tech Is Very Affordable (add one)
Dual Beam offers much wider coverage for fish than single beam systems, and lets you know whether the fish are directly below or dispersed around the boat. Dual Beam sonar combines a high-definition 20 degree down-looking beam, with a wider scanning 60 degree beam that looks for fish. Fish in the narrow beam appear as solid symbols, while fish in the wider beam appear as outline symbols. Total bottom coverage is equal to the depth, which provides three times the coverage of single beam models. Single Beam sonar utilizes Humminbirds 20 degree @-10db beam that provides better definition of structure and bottom composition. Total bottom coverage is equal to one-third the depth. Depending on the model, PiranhaMAX units have maximum depth capability of 800 feet to 600 feet and offer power at 1,600 watts peak-to-peak (200 watts RMS) or 800 watts peak-topeak (100 watts RMS). All models include temperature built into the transducer. Select PiranhaMAX models are offered in a portable configuration with a hardshell carrying case and suction cup transducer. The unique PiranhaMAX 230 Portable (PT) combines traditional fishfinding with revolutionary SmartCast wireless sonar to locate fish anywhere it can be cast, whether fishing from the dock, bank or boat. The Manufacturers Suggested Retail Prices for the new PiranhaMAX models range from $79 to $199. New models available January 2007. For more information contact Humminbird, 678 Humminbird Lane, Eufaula, AL 36027, or call the Consumer Resource Center at (800) 633-1468 or visit www.humminbird.com. Humminbird is a leading innovator and manufacturer of fishfinders, fishfinder/GPS combo units, chartplotters, marine radios and digital depth gauges. Products in the Humminbird line include 900 Series, 700 Series, 300 Series, Matrix Series, 500 Series, PiranhaMax and SmartCast. Humminbird branded products are manufactured and marketed by the Marine Electronics Group of Johnson Outdoors Inc., headquartered in Racine, Wis. -30-

PiranhaMAX 240

Key Features:
240V x 160H high contrast 4" diagonal LCD display Tri Beam locates fish to the left, right and below the boat Selective Fish ID+ shows fish in wide beam as outlined symbols as well as the orientation to the boat, and fish in narrow beam as solid symbols 1600 watts peak-to-peak, 200 watts RMS power output, 2 " target separation 8-level grayscale delivers a clearly better image of bottom, fish and structure Swivel mount adjusts for optimum viewing from anywhere on the boat Easy One-Touch control accesses full set of advanced features Reliable performance from shallow to 800 feet

Specifications

Display: Transducer standard: Transducer coverage(s): Operating frequency(s): Power output: Depth capability: Target separation: Temperature: Speed: Power input: Unit mounting: Unit size installed (gimbal): Transducer mounting: 240V x 160H, 4" diagonal, 8-level grayscale, high-contrast FSTN LCD Tri Beam 20 & (2) 35 @ -10db; 90 of total coverage 200 & 455 kHz 1,600 watts peak-to-peak, 200 watts RMS 800 feet 2 1/2" Included in transducer Not capable 10-20 VDC Tilting and swiveling gimbal mount 4 3/8" W x 6 1/8" H x 3 1/4"D Transom standard; optional trolling motor, puck or thru hulls available

MSRP: $139

PiranhaMAX 230 Portable
Traditional 20 Single Beam sonar with 1600 Watts Peak-to-Peak, 200 Watts RMS power output and depth to 800 feet SmartCast 90 single beam wireless sonar with operating range to 100 feet and depth capability to 120 ft. SmartCast Advanced Remote Sonar Sensor with 4 level grayscale sonar, water temperature and programmable light for night fishing Rugged portable model with case, carry handle, transducer cable wrap and non-skid bottom Operates on 8 AA Alkaline batteries 240V x 160H high contrast 4 1/4 diagonal LCD display Suction cup transducer mounts on most smooth surface wood, fiberglass and aluminum hulls Water surface temperature included in transducer
Display: Transducer standard: Wireless Transducer: Transducer coverage(s): Wireless transducer coverage Operating frequency(s): Wireless operating frequency(s): Power output: Depth capability: Wireless depth capability: Target separation: Temperature: Speed: Power input: Unit mounting: Transducer mounting: 240V x 160H, 4" diagonal, 8 level grayscale, high-contrast FSTN LCD Dual Beam Single Beam 20 & 60 @ -10db 90 @ -10db 200 kHz 125 kHz 1,600 watts peak-to-peak, 200 watts RMS 800 feet 120 feet 2 1/2 Included in transducer Not capable 10-20 VDC Portable case Suction cup

MSRP: $199

PiranhaMAX 220
Key Features: 240V x 160H high contrast 4" diagonal LCD display
Dual Beam sonar provides wide 60 beam for Fish ID+ and precision 20 degree beam for better bottom detail Selective Fish ID+ shows fish in wide beam as outlined symbols, and fish in narrow beam as solid symbols True 8-level grayscale delivers a clearly better image of bottom, fish and structure Swivel mount adjusts for optimum viewing from anywhere on the boat Easy One-Touch control accesses full set of advanced features 1600 watts peak-to-peak, 200 watts RMS power output 2 1/2 target separation Reliable performance from shallow to 800 feet
Display: Transducer standard: Transducer coverage(s): Operating frequency(s): Power output: Depth capability: Target separation: Temperature: Speed: Power input: Unit mounting: Unit Size Installed (gimbal): Transducer mounting: 240V x 160H; 4" diagonal, 8-level grayscale, high-contrast FSTN LCD Dual Beam 20 & 60 @ -10db 200 and 83 kHz 1,600 watts peak-to-peak, 200 watts RMS 800 feet 2 1/2" Included in transducer Not capable 10-20 VDC Tilting and swiveling gimbal mount 4 3/8" W x 6 1/8"H x 3 1/4"D Transom standard; optional trolling motor, puck or thru hulls available

MSRP: $99

PiranhaMAX 215
160V x 132H high contrast 4" diagonal LCD display Dual Beam sonar provides wide 60 beam for Fish ID+ and precision 20 beam for better bottom detail Selective Fish ID+ shows fish in wide beam as outlined symbols, and fish in narrow beam as solid symbols True 4-level grayscale delivers a clearly better image of bottom, fish and structure Easy One-Touch control accesses full set of advanced features 800 Watts Peak-to-Peak, 100 Watts RMS power output, 2 1/2" target separation Reliable performance from shallow to 600 feet Water surface temperature included in transducer
Display: Transducer standard: Transducer coverage(s): Operating frequency(s): Power output: Depth capability: Target separation: Temperature: Speed: Power input: Unit mounting: Unit size installed (gimbal): Transducer mounting: 160V x 132H; 4" diagonal, 4-level grayscale LCD Dual Beam 20 & 60 @ -10db 200 and 83 kHz 800 watts peak-to-peak, 100 watts RMS 600 feet 2 1/2" Included in transducer Not capable 10-20 VDC Tilting gimbal mount 4 3/8" W x 6 1/8" H x 3 1/4" D Transom standard; optional trolling motor, puck or thru hulls available

MSRP: $89

PiranhaMAX 210
160V x 132H high-contrast 4" diagonal LCD display True 4-level grayscale delivers a clearly better image of bottom, fish and structure Easy One-Touch control accesses full set of advanced features 200 kHz , 20 Single Beam sonar delivers better bottom detail 800 Watts Peak-to-Peak, 100 Watts RMS power output, 2 1/2" target separation Ultra-compact size mounts almost anywhere Reliable performance from shallow to 600 feet Water surface temperature included in transducer
Display: Transducer standard: Transducer coverage(s): Operating frequency(s): Power output: Depth capability: Target separation: Temperature: Speed: Power input: Unit mounting: Unit size installed (gimbal): Transducer mounting: 160V x 132H; 4" diagonal, 4-level grayscale LCD Single Beam 20 @ -10db 200 kHz 800 watts peak-to-peak, 100 watts RMS 600 feet 2 1/2" Included in transducer Not capable 10-20 VDC Tilting gimbal mount 4 3/8" W x 6 1/8" H x 3 1/4"D Transom standard; optional trolling motor, puck or thru hulls available

MSRP: $79

PiranhaMAX 210 Portable
160V x 132H high-contrast 4" diagonal LCD display True 4-level grayscale delivers a clearly better image of bottom, fish and structure Easy One-Touch control accesses full set of advanced features 200 kHz , 20 Single Beam sonar delivers better bottom detail 800 watts peak-to-peak, 100 watts RMS power output, 2 1/2" target separation Reliable performance from shallow to 600 feet Rugged portable model with case, carry handle, transducer cable wrap and non-skid bottom Operates on 8 AA Alkaline Batteries Suction cup transducer mounts on most smooth surface wood, fiberglass and aluminum hulls Water surface temperature included in transducer
Display: Transducer: Transducer coverage(s): Operating frequency(s): Power output: Depth capability: Target separation: Temperature: Speed: Power input: Unit mounting: Transducer mounting: 160V x 132H; 4" diagonal, 4-level grayscale LCD Standard: Single Beam 20 @ -10db 200 kHz 800 watts peak-to-peak, 100 Watts RMS 600 feet 2 1/2" Included in transducer Not capable 10-20 VDC Portable case Suction cup

MSRP: $119

PiranhaMAX 215 Portable
160V x 132H high contrast 4" diagonal LCD display True 4-level grayscale delivers a clearly better image of bottom, fish and structure Dual Beam sonar provides wide 60 beam for Fish ID+ and precision 20 beam for better bottom detail Selective Fish ID+ shows fish in wide beam as outlined symbols, and fish in narrow beam as solid symbols Easy One-Touch control accesses full set of advanced features 800 watts peak-to-peak, 100 watts RMS power output, 2 1/2" target separation Reliable performance from shallow to 600 feet Rugged portable model with case, carry handle, transducer cable wrap and non-skid bottom Operates on 8 AA Alkaline Batteries Suction cup transducer mounts on most smooth surface wood, fiberglass and aluminum hulls Water surface temperature included in transducer

Display: Transducer standard: Transducer coverage(s): Operating frequency(s): Power output: Depth capability: Target separation: Temperature: Speed: Power input: Unit mounting: Transducer mounting: 160V x 132H; 4" diagonal, 4-level grayscale LCD Dual Beam 20 and 60 @ -10db 200 and 83 kHz 800 watts peak-to-peak, 100 Watts RMS 600 feet 2 1/2" Included in transducer Not capable 10-20 VDC Portable case Suction cup

MSRP: $129