Anritsu FAQs
Can the S33xE, the S810D and S820D perform optical time domain measurements like on the S33xD model?
Yes, but there is not an Optical Time Domain mode like on a S33XD model. You do the measurement in the regular time domain mode. To run the Optical DTF follow the steps: http://www.us.anritsu.com/downloads/files/10580-00215.pdf