Abstract: A sonar system is provided including a sonar assembly configured to attach to a motor assembly of a watercraft or a watercraft. The sonar assembly includes sonar transducer element(s) that transmit sonar beam(s). The sonar system includes a display, processor(s), and a steering assembly configured to cause rotation of the sonar assembly or the motor assembly. The sonar system includes a memory including computer program code that causes the processor(s) to cause the sonar transducer element(s) to emit sonar beam(s), receive sonar return data from a coverage volume of the sonar transducer element(s), generate a sonar image of the coverage volume based on the sonar return data, receive an input from a user, determine a target in the underwater environment based on the input, and cause the steering assembly to adjust the coverage volume to maintain the target within the coverage volume as the watercraft moves relative to the target.

Abstract: A low cost self-leveling keyswitch 10 having a keytop 32 with an elongated keycap 34 that extends in a major direction. The keytop 32 has an off-set keystem 36 that is slidably mounted in a keystem bearing 26. The keytop 32 has a self-leveling projection 42 that extends downward, spaced from the keystem 36. Both the keystem 36 and the projection 42 are on opposite sides of the central axis 33 and engage an elongated plateau portion 66 of an elastomeric dome return spring 60. The elongated direction of the plateau portion is the same as the elongated direction of the keycap 34. The elongated dome return spring 60 in conjunction with the self-leveling protection 42 minimize any wobble or tilting of the keytop 32 as the keytop 32 is depressed independently of the location of the depression force. The effective size of the projection 42 is preferably more than 50% of the effective area of the elongated dome return spring 60.