The software bundle contains the following options: R&S®RTB-K1: I2C/SPI serial triggering and decoding Trigger and decode I2C and 2-wire, 3-wire and 4-wire SPI buses R&S®RTB-K2: UART/RS-232/RS-422/RS-485 serial triggering and decoding Triggering and decoding of UART-based protocols and RS-232, RS-422 and RS-485 buses R&S®RTB-K3: CAN/LIN serial triggering and decoding Triggering and decoding of CAN and LIN interfaces R&S®RTB-K36: frequency response analysis (bode plotting) The R&S®RTB-K36 frequency response analysis (bode plotting) option enables fast and easy frequency response measurements with the oscilloscope, even at lower frequencies. The device characterises the frequency response of various electronic components including passive filters and amplifier circuits. For switching power supplies, the control circuit behaviour and the supply voltage feed-through are measured.