T1A06:On which of the following HF frequencies can automatically controlled amateur propagation beacons be found?
Direct answer summary (2026-2030 NCVEC pool)
The official correct answer for T1A06 is On ten meters, between 28.200 MHz and 28.300 MHz.
The key fact is On ten meters, between 28.200 MHz and 28.300 MHz. Match that fact to the exact condition in the question; the other choices describe a different rule, band, component, or operating situation.