Connect a Garmin GT30 transom mount scanning transducer and an AIRMAR® P72 or AIRMAR P79 in-hull mount traditional transducer to a compatible echoMAP™ chartplotter/sonar combo.
This adapter cable allows the echoMAP to continue to display water depth from the in-hull transducer in instances when the transom mount transducer loses depth reading due to cavitation.
![RAM Mount Base 11" x 3" w/3-3/8" Ball [RAM-E-111BU]](https://www.yachtseatworks.com/wp-content/uploads/2026/10/ram-mount-base-11-x-3-w-3-3-8-ball-ram-e-111bu.webp)
