Pulse On/Off Ratio Performance Test

This test applies to the following models:

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.

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Required Test Equipment

Test Equipment

Recommended Models1

Spectrum analyzer

N9030B Option 5xx2

Adapter, Type-N (f) to 3.5 mm (m)

1250-1750

Adapter, 3.5 mm (f) to 2.4 mm (f)

11901B

Cable, 3.5 mm (m) to 3.5 mm (m)

11500E

Cable, BNC (m) to SMB (f)

8121-2063

100 MHz reference

M9300A
  1. Refer to the main Required Equipment table for a list of alternative models.
  2. Select any frequency option (503, 508, 513, 526, 544, 550) that has a maximum frequency greater than or equal to the maximum frequency of the unit under test.

Connections and Setup Procedures