🎓 Dr. Freemo 🇳🇱 @freemo@social.cleverlibre.org

@khird

No thats actually a very different effect (AM broadcast radio is HF). In that case it has to do with ionosphere ionization that causes pathces that cause reflection. So the reflections happen at a much higher altitude, and the incidence is different too and the effect is not the refraction of the normal path or fair.

The biggest functional differences is with HF bounce you get much larger distances, and when youg et to frequencies as low as am broadcast ~1Mhz you have a very steep incidence angle for reflections to occur. Which means while its still much farther than you'd get with VHF/UHF it wont be the sort of distances you could get with mid range frequencies like ~20MHz.

@rchrd

@rchrd

Indeed, it also applies to light by the way which is why in the early days there was some dispute as to if the earth was round by a small minority of legitimate scientists... because measurements sometimes actually told us it might be flat or even concave and we didnt understand refraction at the time.

@Science

@b6hydra I know the feeling... squaters and all that

A wonderful site showing a few different types of radio signal **refraction**. Important to note what you are seeing here is totally different from the effects you get from HF radio frequencies and occurs with VHF and UHF as well. Its why generally line-of-sight frequencies like UHF can sometimes go some ways over the horizon.

https://www.dxinfocentre.com/propagation/tr-modes.htm

#Radio #RF #Ham #HamRadio #AmateurRadio #EE #Electronics #Science #STEM @Science

@twotwenty I am happy to know you've enjoyed and continue to enjoy your time here. Makes the effort and stress I've put into this place feel worthwhile.

@b6hydra I do the same damn thing. Most of my domains remain idle. Though I do have some good ones.

Me: I have so much to do, i need to write a todo list

::Blank todo list::

Me writing: Todo #1, write todo list

Me: good start! I deserve a reward for all this hard work, let me go take a nap.

@lucifargundam
Its alright. Not my favorite type of pie bit absolutely worth having from time to time
Q