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People often use the words “RF port” and “coaxial port” like they’re interchangeable. That’s why a lot of inquiries start like this: “We need an RF port cable,” and then the customer sends a photo of a coax connector—without frequency, impedance, or any datasheet.
Coaxial cables are everywhere—from RF communication systems and industrial automation to medical equipment and high-frequency test setups. Yet despite their widespread use, coaxial cables are often treated as “plug-and-play” components, with testing reduced to a quick continuity check or a visual inspection. In reality, improper or incomplete testing is one of the most common root causes behind signal loss, EMI issues, intermittent failures, and costly system downtime.
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