The transom mount installation allows adjustment of both running angle and depth after the transducer is mounted, which enables you to tune the installation for the best results.


Ob varietatem navium, tantum instructiones generales in hoc rectore institutioni exhibentur. Quaelibet navis carina repraesentat singulare praescriptum requisitorum quae ante institutionem aestimanda sunt. Ad melius informationes de transductoribus in diversis sedibus figurarum inauguratis, de instruendis Resource Ducis Transductoris ex nostris Webat site
Transducer vultus vestri non transducer ostensum est prorsus sicut in exemplis, nisi quod erit mons est in eodem prorsus modo.

installation Praeparatio
Imperium caput instrue antequam transductor institutionem incipias.

Vide caput institutionis moderatio rector.

Review naviculam tuam manualem fabricatoris domini ad commendationem transductoris institutionis locorum ac funerum modos excitandi. Opus erit etiam angulo superliminare tuo.
Navem in conspectu tuo scriptor warantum legere et intelligere incipiens hanc institutionem.
Read the instructions in this guide completely and understand the mounting guidelines before beginning this installation.

Visit our Web situm apud informationis et subsidia pro transducer installations. Etiam, visita informational ad videos.

Tua enim navis instruitur gradu.
Ponite corda vestra super celeritas commodum.

Traveling over 65 mph with the transducer in the water is not recommended with the XNT 9 SI 180 T, XNT 9 DB 74 T, XNT 9 MSI 150 T, XNT 9 HW DI T, XNT 9 HW SI T, and XNT 14 74 T transducers,

as damage may occur. If speed above 65 mph is critical, see the FAQ (Frequently Asked Questions) section of our Web site at Humminbird. com.

Down Imaging® provides the maximum detail at slower speeds, however, high-speed performance is available in the Down Imaging and traditional sonar views. If the high-speed operation is critical with your Down Imaging transducer, you may want to consider an Inside the Hull transducer.

SIDE IMAGING® NOTE: The Side Imaging transducer CANNOT be installed inside the hull of the boat.

Supplies: In addition to the supplied hardware, you will need a powered hand drill and various drill bits, various hand tools, including a ruler or straightedge, a level, a socket driver, marker or pencil, safety glasses and dust mask, marine-grade silicone sealant, dielectric grease (optional), and a 12″ plumb line (weighted string or monofilament line [optional]). You may also need extension cables and hardware for routing the cable to the control head.

Adscendens pretium motus faceret-Solvo

Magni interest ut transducentem in area collocare relative libera aqua turbulenta. Animadverte sequentia ad inveniendum optimum locum cum minimo turbidum:


  1. Fugiat areas ubi turbidae aquae fluunt. Aqua turbida normaliter areis arctatur statim afi costis, striis, vel claviculis in fundo navi, et in immediata parte propeller(s). Optimus via ad liberam aquam collocare turbulentum est view superliminare dum navis movetur.
  2. Propeller de partem exitum tuum ex rotatione (quatenus ad proficies, quantum tibi in puppi nauis adversus navem a tergo). Clockwise propellers a turbulentia creare magis portum plagam. Counterclockwise creare magis propellers a dextera parte.
  3. Ensure there is the adequate distance from the propeller(s). On outboardor inboard/outboard boats, it is best to locate the transducer at least 15″ (38.1 cm) to the side of the propeller(s).
  4. The ideal mounting location (right of the propeller[s]). It is important to note that 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 the loading and unloading of the boat.
  5. Iit cum navibus amissis, in gradum transducer conscendere liceat. Non secundum gradum conscendere transducer in superliminari et papaver ne altiora transducer aqua celeritates.
  6. Oportet autem transducer effundebatur aqua ut cum parallela sed in aqua submersa penitus operatio.HUMMINBIRD-HELIX-7-CHIRP-MSI-GPS-G4N-FIG-4
  7. If you have a Side Imaging transducer, the transducer must NOT have anything obstructing the ‘view' tignorum lateris aspectus. Nam ex *ample, nothing can be in the line of sight of these beams (not a hull, motor, or another transducer, etc.)

patens View: Haec lamina sinciput institutionem dat transductorem tutum distantiam a motore et turbulento. Latus Imaging patet view latus ad latus.

NOTE: Movere debes motorem et extra viam cum radiis aspectantibus utens.

Deadrise: Figura hydrodynamica transductoris tui permittit radios sonos ad designandum sine tionibus mortuis.

Para Adscendens Location


  1. Confirmo super sex gradus scapha (ex portu dextera arcum et puppi).
  2. Hold the mounting bracket against the transom of the boat in the location you have selected. Align the bracket horizontally, using the level. Make sure that the lower screw hole protrusion does not protrude past the bottom of the hull.
  3. Refer ad minimam alvi requisitam inter imum bracket et imum superliminare pro navi tuae generis infra:
    • 1/4″ (6 mm) alvi pro lintribus fibreglas
    • 1/8″ (3 mm) alvi pro naviculis aluminis
    • NOTA Aluminium navigia; For flat-bottomed aluminum boats, some additional adjustments may be needed to accommodate the rivets on the bottom of the boat (the gap may need to be a little smaller than 1/8″). This will help you to avoid excessive turbulence at high speeds. If your propeller moves clockwise, mount the transducer on the starboard side, and align the bottom right corner of the mounting bracket with the bottom of the boat. If your propeller moves counterclockwise, mount the transducer on the port side, and align the bottom left corner of the mounting bracket with the bottom of the boat.
  4. Continue to hold the bracket on the transom of the boat, and use a pencil or marker to mark the two initial drill holes (see Using the Mounting Bracket to Mark the Initial Drill Holes). Mark the drill holes near the top of each slot, making sure that your mark is centered in the slot.
    • NOTE: Tertium foramen non esse debet, donec angulus transducentis et altitudo perficiatur, quod non facies nisi postea procedendum.
  5. Confirma paulum terebra perpendicularis ad ipsam superficiei superficialis (terrae NON parallelam), antequam terebrare. Usus 5/32″ (4 mm) frenum, duo foramina terebrare solum ad altitudinem circiter 1″ (25.4 mm).
    • NOTA FIBERGLASS TESTA: Optimum est cum minore frenum incipere et usu maiore gradatim terebra calcaria reducere occasionem detractionis vel flaturae exterioris fibrillae efficiens.

Congrega Transducer et Coepi Adscendens

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.

  1. If your transom is angled at 14 degrees (a common transom angle for many boats), use position 1 for the ratchets. 1b. If you have a different transom angle or do not know your transom angle, refer to the Transducer Installation Resource Guide on our Web situm apud ad detailed instructiones.
  2. Pone binas ratches, tesseras transducis ex utraque parte, ita ut globuli in unaquaque ratchetae acie cum optato numero super tesseras ponantur (vide Installing the Ratchets in Position 1). Si ratchetas in positione 1 proponas, globuli in unaquaque scalare cum costa in transductoris tesserae lineam erunt, ut unam continuam lineam in coetu constituant.


NOTE: Scalae spectantur. Fac ut dentes quadrati in utraque scalare spectent quadratos dentes in transductor talorum, et dentes triangularis exteriorem faciem.

  1. Hold the ratchets on the transducer knuckle until it snaps into place with the other hand. Refer to the illustration Fitting the Pivot Arm over the Ratchet.
  2. 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 (see Inserting the Pivot Bolt).
    MONITIO: Noli uti summus celeritas exactoris in hac iunctura fasteners. Obstringere manu tantum.
  3. Insert the pivot arm assembly into the mounting bracket (see Inserting the Pivot Arm Assembly into the Mounting Bracket). Do NOT snap the assembly closed, as you will need to access the mounting bracket in the next step.


NOTE: If the pivot assembly is snapped closed over the mounting bracket, use a flat head screwdriver or similar tool to gently pry the assembly away from the mounting bracket.


  1. 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.
    • NOTE: Fac ut cochleae inscensiones foveantur, sed cochleae cochleae plene obstringunt ne hoc tempore sinat conventum transductorem pro tionibus ad proposita labi.
  2. Snap the pivot arm down into place.

Adscendens Anglus confirmare

Vos mos postulo ut adjust ponamus initio angulum et verticaliter et horizontaliter, ad confirmandas de transducer transducer orantibus escendere suggestum ad angulum.

  1. Adjust the transducer assembly vertically, until the seam on the leading edge of the transducer (see 1 below) is level and just slightly below the hull.
  2. Accommodare angulum initialem transducentis a tergo ad frontem, transducto revolvendo usque ad commissurae latus transductor fere parallelum cum fundo navigii, ad tempus utrinq (cf. Adjusting. Initial Transducer Angle).


Pronus Slant: The transducer has a natural downward slant of 4 to 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.

Down Imaging Transducers: A downward slant is not required for Down Imaging Transducers. Adjust the running angle so that the transducer is parallel to the water and submerged in the water.


  1. Leading edge (the edge closest to the transom of the boat).
  2. One-click too high: the transducer is tilted out of the water and cannot maintain a sonar signal.
  3. Trailing edge (the edge farthest away from the boat).
  4. Correctly aligned: the transducer side seam is parallel with the water line.
  5. One-click too low: the deeper the transducer is in the water, the more likely that a rooster tail of spray will be generated at high speeds. You also risk the transducer being struck and damaged by objects in the water, so make sure that the transducer is as high as it can be and still be submerged in the water.


  1. Continue to adjust the transducer assembly until the bracket is also level from port to starboard (horizontally level as you look at the transducer from behind the boat) (see Adjusting the Horizontal Transducer Angle).
  2. Postquam complevit, notare rectam positionem super superliminare, silhouette transductoris bracket escendentis cum graphio vel titulo vestigando.
  3. Obstringe versorium fulmen, utendo cochleae undiquaque et nuce ad ecclesiam claudendam. Manum obstringere tantum!
    • MONITIO: Noli uti summus celeritas exactoris in hac iunctura fasteners. Obstringere manu tantum.
  4. Snap open the assembly and hand-tighten the two mounting screws, then snap the assembly closed.

NOTE: Tertiam foveam escendentem exercebis et institutionem finalise post te, funem mittis et experire et institutionem in sequenti processu perficies.

Iter cable


Funem per superliminare vel per foramen superliminare potes super aqua. Navicula tua praeexistentem canalem vel ductum wiring habere potest ut funem meatus uti possis. Elige methodum excitandam quae optima est ad configurationem naviculam tuam, et quaslibet rudentes funes, cables tondeas eme, cl.amps, etc., prout opus fuerit.

  • Optimum est funem meare ad latus transductoris, ut transductor in motu dilabi non laedat.
  • Et transducer potest pivot ad XC gradus in bracket. Dilabi sinere satis inutilis In hoc enim motus.
  • Si quis exercitio foramina gradus marinorum Silicone efncerentur implebit.
  • Cable superfluum: Si funis nimius est qui in uno loco colligendus est, funem ab utraque parte fusum coles, ut una ansa relinquatur e loco repono. Hinc duplicare funem, in orbem formare funem. Repono excessum fune utens hac methodo impedimentum electronicum minuere potest.


  • Non secare vel minuere funem transducer, et experiri fune velit ne laedas. Funem itine- rum, quantum fieri potest, ab aliquo VHF antennae radiophonicae vel funes tachometris facultatem minuendi impedimenti sunt. Si funis nimis brevis est, funiculi extensio praesto sunt ut funem transducis extendat usque ad summam 50′. Ad auxilium, contactus Humminbird® Support.
  • Ne funes conscendas ubi iunges submergi vel in aqua vel inundari possent. Si rudentes in area prona displosione instituuntur, utile erit uncto dielectric ad interiora iunctis ne corrosionem applicare. Uncta dielectrica separatim mercari possunt ab ferramento generali vel copia autocineta.

Cable coniungere

  1. Connect the transducer cable to the transducer port on the control head or cable connector (if applicable). The connector is keyed to prevent reversed installation, and insertion should be easy. Do not force the connectors into the ports. If the cable connector is round, hand-tighten the screw nut to secure the cable connection. Hand-tighten only! Refer to your control head installation guide for additional details.HUMMINBIRD-HELIX-7-CHIRP-MSI-GPS-G4N-FIG-11

Test ac perfice institutionem

Cum caput imperium instituisti, transductor, et omnes funes fudistis, tentationem ultimam praestare debes antequam transductorem in loco claudat. Testis facienda est cum navi in ​​aqua quam 2 pedes profundior. Transductor plene submergi debet, quia signum sonarium per aerem transire non potest.

CAVE: Per operationem in aquis immergitur transducer nostrum perfectum sonar signum quod potest transire per auras. Aeris pinging transducer sit amet est.

Installation est Transducer test in Caput Imperium

  1. Potentia key Preme ut convertat in caput imperium. Si transductor deprehensus fuerit, regimen capitis modus Normalis incipiet.
  2. Eligere Sonar View in screen ut ostenderet. HELIX®: Press and hold the VIEW clavis. Lego Sonar> Sonar View. SOLIX®: Press the HOME key. Select a Sonar View. Alter: Vide potestatem capitis operationes manuales.
  3. If the bottom is visible on-screen with a digital readout for Depth, 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.
    NOTE: Down Imaging provides the maximum detail at slower boat speeds, however high speed performance is available in the Down Imaging and traditional sonar views.
  4. Si angulum rectum in transductor positum habes, fundum tamen legendi in alta celeritate amitte, altitudinem ac angulum currentem in parvis incrementis compone ut tibi specimen transducer positio navigii tuae des. Primum, in parvis incrementis altitudinem accommodare.
  5. If you are still not getting good high speed readings, you may need to disassemble the transducer mounting assembly and re-position the ratchets. 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.

Denique instruitur Transducer

Cum tamen aequabili et bonis quae pervenit ad signum sonar desideravit celeritate estis parati ad clauditis descendit transducer occasus.

  1. Force the pivot to the Up position to gain access to the mounting screws, 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.
  2. Unscrew and remove the mounting screws and the transducer assembly and set aside.
  3. Terebra tertia cavum ascendens, utens 5/32″ (4 mm) terebra frenum.
  4. Gradu marino utere silicone sealant ad omnia tria terebrata ascendentium foramina replenda, praesertim si foramina superliminare penetraverint.
  5. Re-position the transducer assembly against the transom of the boat, then hand-install all three screws. Make sure that the transducer location and the pivot angle have not changed, then fully tighten all three mounting screws. Hand-tighten only!
  6. Snap the pivot back down. If you have performed the preceding procedures correctly, the transducer should be level and at the right height for optimal operation.

Lock Down the Transducer (Optional)


NOTE: You have the option to lock down the Two Piece Kick Up bracket if you do not want the transducer to kick up. Please be aware, however, that the transducer can be damaged if it is locked down and it strikes debris in the water.

  1. To lock down the transducer, trace the position of the mounting bracket. Force the pivot to the Up position to gain access to the mounting screws, 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 fourth mounting hole using a pencil or marker (see Using the Mounting Bracket to Mark the Initial Drill Holes). Unscrew and remove the mounting screws and the transducer assembly and set aside.
  2. Drill the fourth mounting hole, using a 9/64″ drill bit. Use a marine-grade silicone sealant to fill all four drilled mounting holes, especially if the holes penetrate the transom wall.
  3. Re-position the transducer assembly against the transom of the boat, then hand install the first three screws (two on the outside edges and one in the 3rd mounting hole). Make sure that the transducer location and the pivot angle have not changed, then fully tighten all three mounting screws (see Fully Tightening All Three Mounting Screws). Hand-tighten only!
  4. Snap the pivot back down. Install the #8 x 1″ wood screw into the 4th hole to lock down the pivot arm. Hand-tighten only!

Contactus Humminbird

Contactus Humminbird Support in aliquo ex his modis:

Horae de Operatione

  • Lunae - Veneris
  • 8:00 ad 4:30 post meridiem (Central Standard Time)

Documenta / Resources

HUMMINBIRD HELIX 7 CHIRP MSI GPS G4N [pdf] Installation Guide


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