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RF Coaxial Cables Explained: Types, Uses, and Maintenance

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If you’re buying for RF systems, RF coaxial cables quietly determine link budget, uptime, and total cost of ownership. The right line size and connectorization keep VSWR low, trim losses at your highest operating frequency, and stand up to the environment your project lives in. This guide translates engineering requirements into purchasing criteria you can use in RFQs and vendor reviews—so your RF coaxial cables deliver predictable performance throughout their lifecycle. Key takeaways ●Start with frequency and run length, then size attenuation; verify power handling, impedance, connector interfaces, and environment before you issue an RFQ. ●Use datasheet attenuation at your top frequency to pick between families (e.g., LMR vs RG) and diameters; don’t rely on single-point “typical” figures. ●Maintenance discipline (cleaning, torque, bend radius, sealing) prevents avoidable VSWR spikes and downtime; set inspection and test expectations in contracts. The quick primer on RF coaxial cables ...
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Pogo pin charging dock reliability guide for test engineers

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    Daily charge cycles, sweat, pocket lint, and casual abuse make wearable charging docks one of the harshest “small” interfaces in consumer electronics. If your goal is 100k to 1M reliable mates, you need more than a spec sheet—you need repeatable tests, tight acceptance criteria, and maintenance habits that hold up on the line and in the field. This guide, written from a manufacturing and reliability perspective, shows how to qualify and sustain pogo - pin docks for long life without guesswork. Key takeaways l   Target and measure what matters: four - wire contact resistance, drift over life, spring force retention, working stroke margin, and temperature rise under load. l   Anchor your plan to recognized methods: durability, contact resistance, and current - carrying capacity from the IEC 60512 series, plus salt mist per IEC 60068 - 2 - 11 for sweat - like corrosion. l   For sweat - exposed wearables, prefer gold - over - nickel plating with functional thick...
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