Adjacent Channel Power Performance Test

This test applies to the following models:

In this test, a waveform is generated by the PXIe signal generator, and the ACPR and ACLR are measured using a spectrum analyzer.

Adjacent Channel Power Ratio (ACPR) is the ratio of the power in a specified bandwidth within an adjacent, offset channel to the average power level in the main channel.

Alternate Channel Leakage Ratio (ACLR) is the ratio of the power in a specified bandwidth within a channel that is two offsets away from the main channel to the average power level in the main channel.

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Required Test Equipment

Test Equipment

Recommended Models1

Spectrum analyzer

N9030B Option 5xx2

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

Setup for Adjacent Channel Power