he R&S FPL1-K7 option converts the R&S FPL1000 into an analog modulation analyzer for amplitude, frequency, and phase-modulated signals. It measures the characteristics of the useful modulation and other items such as residual FM or synchronous modulation. Typical applications of the R&S FPL1-K7 include:

• Transient and settling measurements on oscillators such as VCOs and PLLs
• Troubleshooting AM/FM transmitters
• Simple chirp analysis of pulsed or continuous wave signals

Functions include:

• Demodulation of AM, FM, and φM signals
• Simultaneous viewing of:
  • Modulation signal versus time
  • FFT spectrum of the modulation signal
  • RF signal power versus time
  • FFT spectrum of the RF signal
• Table with a numeric display of:
  • Deviation or modulation depth, RMS weighted, +peak, –peak, ± peak/2
  • Modulation frequency
  • Carrier frequency offset
  • Carrier power
  • Total harmonic distortion (THD) and SINAD

*The image is for reference only. See product specification for details.