There are such things as moon-bounce communication whereby radio signals are 'bounced' off the lunar surface to a distant location on Earth. This mechanism may be likened to the way a mirror reflects light.
This article writes to say
it has been discovered that radiowaves, unlike light and infrared radiation, are reflected back to the Earth principally from a small region at the center of the visible disk
Radio communication on Earth is strongly dependent upon the ionosphere - a layer of the atmosphere comprised of charged particles sympathetic to radio energy. Luna does not have an ionosphere but lunar dust levitates. The dust is ionized by the Sun.
What I am curious about
- Is long range radio communication possible on the lunar surface?
- Was/Is radio propagation on the lunar surface part of any mission/programme to-date (or proposed)?
- Could analysis of the signal quality on CSM/LM communication tapes of the Apollo program yield anything useful in this context?