The link to Furuno FCV-1150 Digital Sounder Without Transducer has been copied
The FCV1150 is a color digital sounder designed for a variety of professional fishing operations. Its bright 12.1" LCD with AR coated glass filter provides superior, glare-free viewing in direct sunlight. Employs Furuno Free Synthesizer technology which permits a wide selection of operating frequencies from 28 to 200 kHz. If a Furuno transducer is used, operating frequency is automatically set in the menu and can be shifted manually at any time. Display modes and functions include Single (HF/LF), Dual, Single + Zoom, Zoom, Mix Mode, Nav Data, and A-Scope. Rate of transmission has been increased by more than 30% compared to conventional fish finders. New technique automatically switches the echo transmission rate according to the depth of the sounding area. Gain setting for all the echoes can be adjusted by rotating the Gain knob. White edge feature shows the top of the seabed in white so you can discriminate between it and bottom fish.