FAQs from Rohde & Schwarz

Tire pressure monitoring system


Is it possible to use my U37xx spectrum analyzer as a tire pressure monitoring system?


Yes, this is possible. Using the time-domain analysis option 53 (1 channel,

3 MHz capture BW)or option 54 (2 channels, 3 MHz capture BW)you can perform

this measurement very easily. Basically, the option allows you to view measurement

data such as Time vs Frequency, Time vs Amplitude, Time vs Phase or FFT

spectrum. For tire pressure systems, FSK modulation is used. With the optional

Frequency vs Time analysis function for FSK modulation, you can measure the

deviation faster than with a conventional spectrum analyzer.