Lowrance HOOK-3x Operators Manual EN - Page 18

Custom range menu NOTE: When using a custom range, you may not receive any digital depth readings, or you may receive incorrect depth information. Frequency Controls the transducer frequency used by the unit. This unit supports conventional, CHIRP and DownScan sonar frequencies. Only frequencies supported by your transducer will appear on the Frequency menu. 50 kHz Sonar frequencies Best depth penetration with lower resolution 83 kHz Wider cone angle provides more bottom coverage and easy lure tracking 200 kHz Highest sensitivity and best target separation in shallow water Low CHIRP Provides the best depth penetration with lower resolution Medium CHIRP Better depth penetration than High CHIRP with minimal loss of target separation High CHIRP Better resolution in shallow water than Medium CHIRP Custom high Custom medium Selects a custom single frequency from within High or Low frequency ranges to help reduce/eliminate interference from other CHIRP transducers Sonar operation | HOOK X series 18