A remote control system for operating a drive unit 2 and a peripheral unit 3 to be used together with the drive unit by remote control, has a transmitter 1 that generates data repeatedly including a first control information for a specific operation of the drive unit 2 and a second control information for controlling a specific operation of the peripheral unit 3. The node comprises at least a first antenna function with a first antenna radiation lobe and a second antenna function with a second antenna radiation lobe, the radiation lobes being arranged to cover the first cell region at the same time. The output control unit is coupled between the output terminal of the operational amplifier and the capacitive load, and is utilized for controlling electrical connection between the output terminal of the operational amplifier and the capacitive load to forma signal output path and for adjusting impedance of the signal output path when the signal output path is formed. The apparatus also includes a sample holder that holds a sample to be tested and a mounting device provided between the sample holder and the manifold.