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What Is a Coaxial RF DC Block?
An RF DC block uses capacitive coupling to interrupt DC continuity…
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DC Block Troubleshooting: No Signal After Installation
Check whether the signal frequency is inside the block’s passband and…
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Surge Protection for a Bias-Tee Antenna System
A bias-tee system needs protection compatible with both RF and the…
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Terminations in an RF Combining Setup
Terminations may absorb imbalance or unwanted power in a combining network.…
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Resistance Tolerance in a 50-Ohm RF Termination
Resistance tolerance contributes to impedance error, but high-frequency parasitics and mounting…
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SMA and N-Type RF Connectors: How to Choose
Choose a connector family from equipment compatibility, frequency requirements and mechanical…
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Why an Open RF Port Reflects Signals
An ideal open termination reflects the incident wave rather than absorbing…
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RF Harmonic Measurements with an External Attenuator
Use attenuation rated for both source power and the frequencies being…
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Adding Two RF Powers: Why dBm Cannot Be Added Directly
For independent power quantities that can be summed, convert each dBm…
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RF Attenuator Versus RF Filter: Which Problem Are You Solving?
An attenuator reduces signal level, whereas an RF filter selects frequencies.…