Category: Knowledge
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External Versus Internal Spectrum Analyzer Attenuation
External attenuation reduces power before the analyzer connector. Internal attenuation adjusts…
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Why Step Attenuator Accuracy Changes with Frequency
Parasitic capacitance, inductance, connectors and switch paths can make actual attenuation…
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Dummy Load Versus Attenuator: The Port Difference
A dummy load absorbs the signal at a terminating port; an…
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How to Choose a DC Block for an RF Instrument
Choose a DC block from the instrument’s permitted DC input, the…
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Documenting a DC Block Requirement for Procurement
Specify construction type, impedance, connector genders, RF passband, maximum insertion loss,…
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Replacing a Surge Protector’s Discharge Element
Replace an element only when the protector is explicitly designed for…
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RF Divider Input Match and Load Conditions
A divider’s input match depends on its design and the loads…
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RF Resistor Voltage and Current Calculations
For a purely resistive matched condition, RMS voltage is the square…
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50-Ohm and 75-Ohm Connectors: Mechanical Fit Is Not Enough
Connectors and cables must match the intended system impedance. Some interfaces…
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How to Label an RF Test Cable Assembly
Label the assembly with an identifier and retain its interfaces, impedance,…