Technician exam question T1D03
Subelement T1, COMMISSION’S RULES· Group T1D · 47 CFR §97.211(b), 97.215(b), 97.113(a)(4)
When is it permissible to transmit messages encoded to obscure their meaning?
- A.Only when using a remote station during a contest
- B.Only when transmitting certain approved digital codes
- C.Only when transmitting control commands to space stations or model craft (correct answer)
- D.Never
WhyIt's permissible to transmit messages encoded to obscure their meaning only when transmitting control commands to space stations or model craft. Encoding a message to obscure its meaning is normally prohibited, but §97.211(b), §97.215(b), and §97.113(a)(4) carve out a narrow exception for control signals sent to space stations or radio-controlled model craft, where the encoding isn't hiding a conversation but simply serves as a machine-readable command, answer C. Contest use (A) and "certain approved digital codes" (B) aren't recognized exceptions, and "never" (D) ignores that this specific exception exists.
Published 2026-08-28 · Last updated 2026-08-28 · Question text is verbatim from the 2026-2030 NCVEC Element 2 pool (public domain); the explanation above is original writing, see our methodology.
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