6. Noise Sidebands, HP 8590 EM-Series

4.Press the following EMC analyzer keys to measure the noise sideband level at

010 kHz:

4MKR !5 MARKER ! HIGH

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MARKER 1 010 4kHz5

4MKR5 MARKER NORMAL

Record the MKR amplitude reading in the Noise Sideband Worksheet as the Noise Sideband Level at 010 kHz.

5.Record the more positive value, either Noise Sideband Level at +10 kHz or Noise Sideband Level at 010 kHz from the Noise Sideband Worksheet as the Maximum Noise Sideband Level at 610 kHz.

6.Calculate the Noise Sideband Suppression at 10 kHz by subtracting the Carrier Amplitude from the Maximum Noise Sideband Level at 610 kHz. Use the equation below.

Noise Sideband Suppression = Maximum Noise Sideband Level 0 Carrier Amplitude

7.Record the Noise Sideband Suppression at 10 kHz in the performance

veri￿cation test record as TR Entry 1. The suppression should be ￿060 dBc.

Part 2: Noise Sideband Suppression at 20 kHz

1.Press the following EMC analyzer keys to measure the noise sideband level at

+20 kHz:

4MKR5 MARKER 1 20 4kHz5

MARKER NORMAL

Record the MKR amplitude reading in the Noise Sideband Worksheet as the Noise Sideband Level at +20 kHz.

2.Press the following EMC analyzer keys to measure the noise sideband level at

020 kHz:

4MKR !5 MARKER ! HIGH

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MARKER 1 020 4kHz5

2-26 Performance Veri￿cation Tests