Airmar Diplexer Installation Instructions Download Page 1

Tools & Materials

Safety glasses
Dust mask
Ear protection
Pencil
Electric drill
Drill bit

3mm 

or

 1/8"

Grommets (some installations)
Deck gland (some installations)
Phillips screwdrivers
Heat-shrink tubing
Adjustable wrench
Petroleum jelly (such as Vaseline

®

 brand)

Cable ties

Where to Purchase Parts

Gemeco

USA
Tel: 803-693-0777
email: [email protected]

Airmar EMEA

Europe, Middle East, Africa
Tel: +33.(0)2.23.52.06.48
email: [email protected]

Applications

• Converts a dual transmission-line transducer to a single 

transmission-line.

• For use with 1kW echosounders only

Installation

Mounting Location & Hole Drilling

1. Select a convenient, dry, mounting location for the water-

resistant Diplexer, a minimum of 1m (3') from other cables and 
electronic equipment.

2. Hold the Diplexer at the selected location and mark the position 

of the four screw holes.

NOTE

: If the Diplexer will be mounted on a vertical surface, 

face the cordgrip downward to avoid any possibility of water 
seeping into the box.

3. At the marked locations, drill 3mm or 1/8" holes to a depth of 

10mm (3/8"). 

Do not fasten the Diplexer in place at this time

.

Cable Routing

1. Route the transducer cable from the transducer to the Diplexer. 

Do not connect the transducer cable or fasten it in place at this 
time.

2. Route the fishfinder cable from the fishfinder to the Diplexer’s 

cable. 

Do not connect the cables or fasten them in place at this 

time.

Convert transducer

                   from dual to single transmission-line

External Diplexer

Patent http://www.airmar.com/patent.html

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Follow the precautions below for optimal 

product performance and to reduce the risk of 

property damage, personal injury, and/or death.

WARNING

: Always wear safety glasses, a dust mask, 

and ear protection when installing.

CAUTION

: To reduce electrical interference from 

other electrical wiring and any on-board equipment with 

strong magnetic fields such as radar equipment, radio 

transmitters, boat engines, generators, etc., separate 

the cables by at least 1m (3').

CAUTION

: Be careful not to tear the cable jackets 

when passing them through bulkheads and other 

parts of the boat. Use grommets to prevent chaffing. 

Use deck glands to prevent water seepage into the 

boat.

IMPORTANT

:

 Please read the instructions completely 

before proceeding with the installation. These 

instructions supersede any other instructions in your 

instrument manual if they differ.

 INSTALLATION  INSTRUCTIONS

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