Rohde & Schwarz FSP-B6 Option: TV trigger and adjustable RF power trigger (40 dB) for FSP
The option TV and RF Trigger, FSP-B6, enables the FSP to trigger on TV signals or on the presence of a RF carrier outside the resolution bandwidth. For this purpose, the hardware board is equipped with a TV demodulator, which produces the trigger signals necessary for the analysis of TV signals. In addition to the pure trigger function, the board also creates a demodulated CCVS video signal for operation of external TV monitors. Apart from using the internal IF for creating the trigger signals, the FSP can also make use of an externally supplied CCVS signal; the corresponding connector is placed at the rear panel of the instrument. In order to display different sections of a TV video signal, the FSP derives several trigger signals from the
video signals. This allows triggering as well on the frame repetition as on each line of the TV video signal. Additionally, the option includes a broadband RF detector (bandwidth = 80 MHz), which allows triggering within a 40 MHz range around the selected frequency (= start frequency in the frequency sweep). Thus, the measurement of spurious emissions, e.g. for pulsed carriers, is possible even when the carrier lies outside the selected frequency span. This RF power trigger can be used as long as the RF signal at the input mixer is in the range of -10 dBm to -50 dBm. The resulting range for the input signal at the RF input connector can be calculated using the following formula: eampGain RFAtt Mixerlevel Signal Input eampGain RFAtt Mixerlevel Pr Pr