radio wave help

[Captain Kilowatt]

I'm beginning to suspect some trolling here.

You are not alone.

 

[biferi]

thanks but

Ok so the D Layer at Night lets FR thought so it can reflect of the other layers.

But at Night the other Layers loss there Ionization right? So how can they reflect anything?

 

[Nursecosmo]

Who is on first.

 

[Sonwatcher]

CK-
This is what I told him in another thread in refrence to the first post in this thread-

It seems the D-layer absorbs radio signal. Here is a quote I found about the D-layer-

Quote:
The D-Layer of the ionosphere plays an interesting role. While there are no radio signals reflected off this layer it does absorb AM radio signals...

At night, the D-Layer disappears and the transmitted signal can then bounce off the ionosphere and return back to the earth.

It was a direct quote taken from NOAA

http://www.k12link.org/earthscience/module_9/mod9_topic1/documents/mod9_top1_ac1_lab.pdf

 

[Captain Kilowatt]

Yeah, I really hate it when people use terms like "AM radio signals" and "FM radio signals". People all too often get confused about modes versus frequency allocations of the AM/FM broadcast bands. Some people have no idea that FM is just a mode and instantly think of 88-108 MHz. According to the NOAA quote then my 2m AM signal should bounce of the D layer at night. :headbang

 

[Peddler]

Be bery, bery careful ... it'll make you go blind ...