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Computing devices

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Ethernet LAN RFI:

Ethernet RFI wide view

Ethernet RFI wide view

Note the peaks every 60 KHz…  Typically ethernet can be seen at the following frequencies:

• 3,511 kHz        • 21,052 kHz    • 28,288 kHz
• 10,106 kHz      • 28,014 kHz    • 28,319 kHz
• 10,122 kHz      • 28,105 kHz    • 28,350 kHz
• 14,030 kHz      • 28,181 kHz    • 28,380 kHz

Ethernet LAN RFI:

Ethernet RFI, close view

Ethernet RFI, close view

Here is a zoomed in view of a single peak.


RFI from a Laptop Switching Power Supply:

RFI from laptop SMPS.

RFI from laptop SMPS.

RFI on 80 Meters from a Laptop SMPS.

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