Abstract: A positioning system, for a boom having right and left boom arms, comprises: a first actuator for moving the right boom arm relative to a support frame; a second actuator for moving the left boom arm relative to a support frame; a first hydraulic link between the first and second actuators; and a hydraulic control device for controlling movement of hydraulic fluid within the first hydraulic link, thereby controlling extension and/or retraction of the first and second actuators.

Abstract: A positioning system, for a boom having right and left boom arms, comprises: a first actuator for moving the right boom arm relative to a support frame; a second actuator for moving the left boom arm relative to a support frame; a first hydraulic link between the first and second actuators; and a hydraulic control device for controlling movement of hydraulic fluid within the first hydraulic link, thereby controlling extension and/or retraction of the first and second actuators.

Abstract: A method for communicating with a computer program application using a remote wireless keypad includes unlocking a receiver responsive to receiving data indicative of a request to unlock the receiver. The method further includes associating the receiver with a keypad comprising at least one button. The method further includes associating the at least one button of the associated keypad with a function based on received data indicative of a keypad configuration. The method further includes receiving data, via the receiver, indicative of a button on the keypad being pressed. The method further includes communicating data representative of a function associated with the pressed button to a computer program application.