What does “impedance” (Ohm) mean in RF connectors?
09-07-2025
You’ve probably seen specs like 50 Ohm or 75 Ohm on RF cables and connectors — but what do they really mean?
Impedance, measured in Ohms (Ω), is the resistance an electrical signal faces as it moves through a cable or connector. It combines resistance, inductance, and capacitance.
If the impedance of your cable, connector, and device don't match, you get signal loss or reflections.
This leads to poor performance or no signal at all.
Therefore it is important to select a high quality Connector and RF Cable Assembly.
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