Rohde & Schwarz NRP

The NRP manual can be found here

Frequency range

in the manual page 6.9 of the remote control, there is a description regarding the frequency area of correction of the frequency response .

This goes from 10.0e6 to 40.0e9 Hz for the NRP-Z55.

Frequency ranges may vary, depending on the head.

For the NRP-Z55, it does measure below 10 MHz, but because of wide band width of these measuring heads, no level correction for these frequencies are done.

It is recommended that the frequency send to the head is done in Hz instead of MHz. The head may not respond to MHz for the frequency correction.