Basic Qualification · B-007 Radio wave propagation · B-007-007-007
In the northern hemisphere, in which direction should a directional antenna be pointed to take maximum advantage of auroral propagation?
- ASouth
- BNorth
- CEast
- DWest
Correct answer: B — North. From the official ISED question bank, verified word for word.
Why
Auroral propagation happens when radio waves bounce off the glowing ionized gases in the sky caused by solar particles hitting Earth's magnetic field. The full explanation — and one for every question — is in Pro.
Practise this section
Radio wave propagation is section B-007 of the Basic exam: How signals travel: the ionosphere and its layers, skip, ground wave, sporadic E, and which bands work when.
Drill B-007 — free, no account