SESKStuff Everyone Should Know
SESK: Stuff Everyone Should Know · sesk.info/hamg-g9b10

About how long is a half-wave dipole antenna cut for 14.250 MHz?

About 33 feet.

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  1. 33 feet ✔
  2. 16 feet
  3. 24 feet

Why: A half-wave dipole is roughly 468 divided by the frequency in MHz, in feet. For 14.250 MHz that comes to about 33 feet.

Huh, didn't know that: For 3.550 MHz the same math gives about 132 feet.

The dad joke
A 20 meter dipole is about 33 feet, so you can hang it between two trees and some patience.
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References

Answer: 33 feet. A half-wave dipole is roughly 468 divided by the frequency in MHz, in feet. For 14.250 MHz that comes to about 33 feet.

  1. NCVEC 2023-2027 General Class Pool and Syllabus (6th Errata, Feb 4 2026) ncvec.org/downloads/General%20Class%20Pool%20and%20Syllabus%202023-2027%20Public%20Release%20with%206th%20Errata%20Feb%204%202026.pdf
    D. 33 feet
    Checked 2026-10-11.
  2. NCVEC 2023-2027 General Class Pool and Syllabus (6th Errata, Feb 4 2026) ncvec.org/downloads/General%20Class%20Pool%20and%20Syllabus%202023-2027%20Public%20Release%20with%206th%20Errata%20Feb%204%202026.pdf
    C. 132 feet
    Checked 2026-10-11.

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