Limited Warranty This Garmin product is warranted to be free from defects in materials or workmanship for one year from the date of purchase. Within this period, Garmin will at its sole option repair or replace any components that fail in normal use. Such repairs or replacement will be made at no charge to the customer for parts or labor, provided that the customer shall be responsible for any transportation cost.
Thank you for choosing the Garmin GSD 20. The GSD 20 is an intelligent, remote sounder module designed to include powerful features as found in other Garmin sounders, including Depth Control Gain (DCG chartplotters, it provides full-featured depth sounder functions. It may interface to multiple head units, providing for complete sounder control from multiple stations, including transmit frequency, range, and gain adjustments.
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The GSD 20 must be properly installed according to the following instructions to get the best possible performance. To complete the installation, you need the appropriate fasteners. If you experience difficulty with the installation, contact Garmin Product Support. The module should be mounted in an out-of-the-way location that is dry and well ventilated. Avoid mounting the module where it can be submerged in liquids or exposed to extreme temperatures.
If a display unit is connected and this code persists, check the wiring. Software failure - Call Garmin Product Support. If the cause is a software error, the display unit can show the error. Power must be cycled to clear the error.
4000 watts (peak to peak) Frequency: 50/200 kHz Depth: 1500 foot max depth* * Depth capacity is dependent on water salinity, bottom type, and other water conditions. Data Output Source: Proprietary Garmin data format. GSD 20 Sonar Module NSTALLATION NSTRUCTIONS...