Intel 1000BASE-T User Manual

10Base-T Harmonic Content
1000BASE-T/100BASE-TX/10BASE-T Physical Layer Compliance Tests Manual
72 Intel Confidential
3. Adjust the spectrum analyzer as indicated below.
4. Place a marker on 10 MHz (fundamental frequency) and the highest amplitude harmonic (must
be a multiple of 10 MHz) between 6 MHz and 206 MHz. The figure below provides a
reference.
Note: For a better display, The end frequency can be reduced to be closer to the frequency of the highest
amplitude harmonic. The signal may need to be attenuated if it is out of range on the spectrum
analyzer.
5. Record dBm at 10 MHz and dBm at highest amplitude harmonic. The difference between the
two markers must be greater than 27 dBm to ensure compliance with IEEE standards and
specifications.
6. Verify the measurements meet specifications.
Table 18-1. Analyzer Configuration for Harmonic Content
Scope Parameter Settings
Start Frequency 6 Mhz
Stop Frequency 206 MHz (a pre-scan to 500 MHz is okay)
Resolution BW or IF BW
Lowest practical BW supported by equipment
in the range of 10 KHz and 200 KHz.
Number of Points (Resolution) Maximum for instrument (≥ 401)
Acquire Average (if necessary)
Vertical Division 10 dB/division
Mode Spectrum Analyzer

Intel 1000BASE-T Specifications

General

Brand	Intel
Model	1000BASE-T
Category	Adapter
Language	English