A multi-functional knob comprising: a button unit exposed to the outside and having a gripping circumferential surface; a guide body unit of a hollow type, configured such that the button unit surrounds at least a portion thereof and is fixedly coupled to an outer surface thereof; a fixing housing of a hollow type, at least partially surrounding the button unit and the guide body unit; a push member assembled to the fixing housing and configured to move in a direction parallel to a longitudinal axis in response to movement of the guide body unit; and a printed circuit board connected to the fixing housing.

High power impedance tuners suffer from intense heating of the center conductor of the tuner airline (slabline), due to dissipated RF and DC power and, in addition to high electric field between the metallic tuning probe (slug) and the center conductor, also from associated thermal expansion causing sagging of the center conductor and possible electrical short. If the thermal expansion cannot be accommodated by structural means, the center conductor is cooled using forced air created by ventilators or re-circulating low loss dielectric liquid flowing through the slabline. Premature tuner aging through continuous airflow or cooling liquid circulation is avoided using real time monitoring of dissipated (heating) power and regulation of the cooling mechanism.

High power impedance tuners suffer from intense heating of the center conductor of the tuner airline (slabline), due to dissipated RF and DC power and, in addition to high electric field between the metallic tuning probe (slug) and the center conductor, also from associated thermal expansion causing sagging of the center conductor and possible electrical short. If the thermal expansion cannot be accommodated by structural means, the center conductor is cooled using forced air created by ventilators or re-circulating low loss dielectric liquid flowing through the slabline. Premature tuner aging through continuous airflow or cooling liquid circulation is avoided using real time monitoring of dissipated (heating) power and regulation of the cooling mechanism.

An operator control device has an actuation unit on a console unit. The actuation unit movable between an idle position and one or more actuation positions. The actuation unit is fixable in the idle position by a retaining device. In order to leave the idle position, it is necessary to overcome a retaining force provided by the retaining device. The retaining device has a coupling device with a coupling element that is magnetically couplable to the actuation unit and to the console unit in order to magnetically fix the actuation unit in at least the idle position.

An operator control device has an actuation unit on a console unit. The actuation unit movable between an idle position and one or more actuation positions. The actuation unit is fixable in the idle position by a retaining device. In order to leave the idle position, it is necessary to overcome a retaining force provided by the retaining device. The retaining device has a coupling device with a coupling element that is magnetically couplable to the actuation unit and to the console unit in order to magnetically fix the actuation unit in at least the idle position.

An operator control device has an actuation unit on a console unit. The actuation unit movable between an idle position and one or more actuation positions. The actuation unit is fixable in the idle position by a retaining device. In order to leave the idle position, it is necessary to overcome a retaining force provided by the retaining device. The retaining device has a coupling device with a coupling element that is magnetically couplable to the actuation unit and to the console unit in order to magnetically fix the actuation unit in at least the idle position.

A multi-functional knob comprising: a button unit exposed to the outside and having a gripping circumferential surface; a guide body unit of a hollow type, configured such that the button unit surrounds at least a portion thereof and is fixedly coupled to an outer surface thereof; a fixing housing of a hollow type, at least partially surrounding the button unit and the guide body unit; a push member assembled to the fixing housing and configured to move in a direction parallel to a longitudinal axis in response to movement of the guide body unit; and a printed circuit board connected to the fixing housing.

A multi-functional knob comprising: a button unit exposed to the outside and having a gripping circumferential surface; a guide body unit of a hollow type, configured such that the button unit surrounds at least a portion thereof and is fixedly coupled to an outer surface thereof; a fixing housing of a hollow type, at least partially surrounding the button unit and the guide body unit; a push member assembled to the fixing housing and configured to move in a direction parallel to a longitudinal axis in response to movement of the guide body unit; and a printed circuit board connected to the fixing housing.