73·STUDY

Extra exam question E1D04

Subelement E1, COMMISSION RULES· Group E1D · 47 CFR §97.119(a)

E1D04 · §97.119(a)

Which of the following is required in the identification transmissions from a balloon-borne telemetry station?

  • A.Call sign (correct answer)
  • B.The output power of the balloon transmitter
  • C.The station's six-character Maidenhead grid locator
  • D.All these choices are correct

WhyA balloon-borne telemetry station's identification transmissions are required to include its call sign. §97.119(a) requires that identification transmissions from a balloon-borne telemetry station include the station's call sign, the same core identification requirement that applies to amateur stations generally, answer A. Transmitter power and a six-character grid locator aren't part of the identification requirement, so neither B nor C nor the "all of these" option D is correct.

Published 2026-08-28 · Last updated 2026-08-28 · Question text is verbatim from the 2024-2028 NCVEC Element 4 pool (public domain); the explanation above is original writing, see our methodology.

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