Radio Frequency @ night time

[Punk]

My Dad used to tell me when I was a young lad that radio frequencys improve at night (Eg clearer Radio stations, clearer Tv channels)Now first of all, Is this a fable ? If its not a fable would the same apply to MyWireless?
TIA

[Triune]

Hey there.

If I remember my high school science textbook correctly, your dad was correct. Don't quote me on this, but I think it has something to do with the lower air temperature, at night, causing less distortion to electomagnetic waves than during the warm day.

So I would guess it should have an impact. Of course, the higher the frequency, the smaller the distortion.


.--- . ... ..- ... / .-.. --- ...- . ... / -.-- --- ..-
Ro:10:9 - If you confess with your mouth, "Jesus is Lord", and believe in your heart that God raised Him from the dead, you will be saved.

[LoneGunman]

here's the official word from 'How Things Work'

(snip)
Why do radio waves travel better at night?

AM radio waves travel remarkably long distances near dusk because of the behavior of the earth's atmosphere. A layer in the upper atmosphere, the ionosphere, contains many electrically charged particles and it behaves like a poor electrical conductor. Its conductivity improves in the early evening. When low frequency radio waves encounter this conducting layer, it responds to them and reflects them just like a mirror reflects light. As a result, you can hear very distant radio stations as their waves bounce of the ionosphere. FM transmissions occur at high frequencies that are too fast for the ionosphere to reflect.

--end snip :)


¿Ø-³*³*³*³*³*³*³*³*³*³*³*³*³*³*³*³*³*³*³*³*³-Ø¿
"The very concept of sin comes from the bible. Christianity offers to solve a problem of its own making! Would you be thankful to a person who cut you with a knife in order to sell you a bandage?"
[Dan Barker, "Losing Faith in Faith"]

[flashvc]

And 2.5GHz is MUCH higher frequency than FM, so it shouldn't affect MyWireless signals

--

[Punk]

thanks. That was interesting !