Abstract: RF-connector systems for coupling an RF-cable to a printed circuit board are disclosed herein. According to one aspect, an RF-connector system (1) comprises: a printed circuit board (2), an RF-connector (3) attached to the printed circuit board (2), a clamping sleeve (20) designed to clamp an adapter (4) attached to the RF connector (3), and a joint bearing (30) attachable to a housing (6) of a measuring device. The joint bearing (30) comprises a support (5). The support (5) is designed to receive the clamping sleeve (20) inside of the support (5). And the joint bearing (30) is designed to clamp the clamping sleeve (20) inside of the support (5).

Abstract: The invention relates to an apparatus (10) for the manual sharpening of blades of cutting tools, in particular knives and/or scissors, comprising at least one first sharpening element (40) with at least one sharpening edge (42, 43), and at least one second sharpening element (41) with at least one sharpening edge (44, 45), wherein the first sharpening element (40) and the second sharpening element (41) can be or are disposed so as to be partially overlapping, in particular partially in contact with one another, such that in a first state (53) of the apparatus (10) one sharpening edge (42, 43) of the first sharpening element (40) defines a first currently used sharpening edge (49) and one sharpening edge (44, 45) of the second sharpening element (41) defines a second currently used sharpening edge (50), and the first currently used sharpening edge (49) and second currently used sharpening edge (50) cross one another at a crossing point (51) and form a V-shaped gap (52) with an angle ? at the crossing poin