Pulse Modulation On/Off Ratio

M9484C with option PMR or PME

This test measures the difference in carrier amplitude with pulse modulation on and off. The On signal is measured using a CW signal is generated by the DUT with pulse modulation turned off. The Off signal is measured by turning pulse modulation on and setting the pulse source to an external input. Since there is no signal at this external input, the RF output power will be turned off. A signal analyzer is used to measure the ratio of the power of CW signal turned on and off.

Required Test Equipment

Test Equipment

Recommended Model Number

Alternate Model Number

Signal analyzer

Note the following:

M9484C signal generators with frequency option 554 can only use the N9041B.

All other frequency options can use any of the recommended or alternate models providing that the frequency option is ≥ the maximum frequency of the DUT.

N9041B with options:

Frequency option for Input 2:

590, 90 GHz
or
5CX, 110 GHz

Other options:

  • N9085EM0E — 5G NR measurement application

 

N9040B
N9030B

With options:

  • 5xx frequency option. Select any frequency option that has a maximum frequency ≥ the maximum frequency of the DUT.

  • N9085EM0E — 5G NR measurement application

Connection Setups

For M9484C frequency options < 554

Note that RF Input 1 is used on the signal analyzer.

For M9484C frequency option 554

Note that RF Input 2 is used on the signal analyzer.