Transducers and Accessories

Boat Transducers, Depth Sounders and Accessories

How Does a Transducer Work?

The easiest way to understand how a transducer functions is to think of it as a speaker and a microphone built into one unit. A transducer receives sequences of high-voltage electrical pulses called transmit pulses from the echosounder. Just like the stereo speakers at home, the transducer then converts the transmit pulses into sound. The sound travels through the water as pressure waves. When a wave strikes an object like a weed, a rock, a fish, or the bottom, the wave is reflected. The wave is said to echo—just as your voice will echo off a canyon wall. When the reflected sound wave returns the transducer acts as a microphone. It receives the sound wave during the time between each transmit pulse and converts it back into electrical energy. A transducer will spend about 1% of its time transmitting and 99% of its time quietly listening for echoes. Remember, however, that these periods of time are measured in microseconds, so the time between pulses is very short. The echosounder can calculate the time difference between a transmit pulse and the return echo and then display this information on the screen in a way that can be easily understood by the user.

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  1. 8701505_simrad_boat_multisensor_transducer_000_11852_001_idst800l_235khz.jpeg
    Airmar Boat Multisensor Transducer 000-11852-001 | IDST800L 235kHz
    GLS Stock #: 8701505-5C683
    $499.95 MSRP: $599.00
  2. 1061613_medallion_7050_02003_00_black_5_1_2_x_3_1_4_inch_plastic_boat_depth_module.png
    Medallion 7050-02003-00 Black 5 1/2 x 3 1/4 Inch Plastic Boat Depth Module
    GLS Stock #: 1061613-5A424
    $379.95 MSRP: $512.93
  3. 23617_1_lg_1.jpg
    Airmar Boat Triducer B744VL | 31-707-5-01 (Northstar Only)
    GLS Stock #: 1034563-5F664
    $299.99 MSRP: $404.99
  4. 25977_1_lg_1.jpg
    Airmar TD1014 Long Stem Bronze 50/200 kHz DST Thru Hull Boat Transducer
    GLS Stock #: 1035752-5F455
    $299.95 MSRP: $404.93
  5. 1080724_airmar_boat_smart_transducer_kit_dt820pv_235_n2_thru_hull_20_degree.jpeg
    Airmar Boat Smart Transducer Kit DT820PV-235-N2 | Thru Hull 20 Degree
    GLS Stock #: 1080724-5C072
    $239.95 MSRP: $323.93
  6. 8701752_garmin_boat_smart_transducer_kit_010_11105_00_thru_hull_20_degree.jpeg
    Garmin Boat Smart Transducer Kit 010-11105-00 | Thru Hull 20 Degree
    GLS Stock #: 8701752-5F366
    $239.95 MSRP: $314.99
  7. 8200963_four_winns_028_3060_airmar_010_11105_00_boat_depth_temp_sensor_transducer_kit.jpg
    Airmar 010-11105-00 NMEA 2000 Boat Thru Hull Smart Sensor Transducer
    GLS Stock #: 8200963-5C074
    $239.95 MSRP: $323.93
  8. 8700717_airmar_boat_transducer_31_556_3_02_carver_yachts_50_200_khz_b60_20.jpg
    Airmar Boat Transducer 31-556-3-02 | Carver Yachts 50/200 kHz B60-20
    GLS Stock #: 8700717-5F475
    $234.95 MSRP: $299.99
  9. 1020010_evinrude_johnson_boat_multi_sensor_triducer_763440_235_khz_kit.png
    Evinrude Johnson Boat Multi-Sensor Triducer 763440 | 235 kHz (Kit)
    GLS Stock #: 1020010-1FB3
    $229.00 MSRP: $310.43
  10. 1067282_yamaha_boat_transom_triducer_6y9_tridu_ce_kt_command_link_kit.png
    Yamaha Boat Transom Triducer 6Y9-TRIDU-CE-KT | Command Link (Kit)
    GLS Stock #: 1067282-5G404
    $199.95 MSRP: $269.93
  11. 1079892_faria_airmar_boat_depth_finder_gauge_ds0173a_w_transducer_kit.png
    Faria Airmar Boat Depth Finder Gauge DS0173A | w/ Transducer (Kit)
    GLS Stock #: 1079892-5G585
    $139.95 MSRP: $188.93