Measuring the Power Spectral Density of a UWB Radio

From time to time, we are asked about our process for measuring the power spectral density (PSD) of our UWB radios.  This can be tricky, as our transmissions are extremely low power and noise-like.  But with a decent spectrum analyzer and the right settings, the output of our radio can be viewed in all its ultra wide glory.

The video below features Bill Beeler, our Sr. RF Propagation Engineer, discussing the process we use and offering his expert guidance.

Some comments:
  • The hardware used in this video is the U.S. FCC-certified version of the PulsON 440 (P440) module.
  • The tests were conducted over a cable and using attenuation to replicate transmission over the air.  This is the method our team uses as it produces the cleanest look at the transmitted spectrum.

If you have questions or would like to purchase radios for your own testing, please use the Contact page to let us know.  Enjoy!