SESKStuff Everyone Should Know
SESK: Stuff Everyone Should Know · sesk.info/ham-receiver-selectivity

What term describes a receiver's ability to discriminate between multiple signals?

Selectivity.

  1. Selectivity ✔
  2. Sensitivity
  3. Discrimination ratio

Why: Selectivity is how well a receiver picks out one signal while rejecting others nearby. Sensitivity is a different thing, the ability to detect weak signals.

Huh, didn't know that: For SSB reception, a 2400 Hz receiver filter gives the best signal-to-noise ratio.

The dad joke
Why is my receiver so popular? It's very selective about who it listens to.
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Sources

  1. NCVEC 2026-2030 Technician Question Pool (Feb 19, 2026 release) https://www.ncvec.org/downloads/2026-2030%20Technician%20Pool%20and%20Syllabus%20Public%20Release%20Feb%2019%202026.pdf

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Ham RadioWhat device converts the RF input and output of a transceiver to another band?Ham RadioWhich agency makes and enforces the rules for amateur radio in the United States?Ham RadioWhich of these is prohibited for amateur radio operators?

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