Continue to Site

Welcome to EDAboard.com

Welcome to our site! EDAboard.com is an international Electronics Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.

Register Log in

This guy is REALLY confused about antennas

Status
Not open for further replies.
D

drkirkby

Full Member level 6
Joined
Nov 6, 2011
Messages
383
Helped
59
Reputation
118
Reaction score
56
Trophy points
1,308
Activity points
5,194
Someone I know via the internet, not in person, is pretty dumb. He is forever asking me questions, and I get a bit fed up with it.

Anyway, completely out of the blue he sent me this little comment yesterday. I thought it was good enough to share.


So the bigger the antenna the more gain it would have. The antenna has to be at least 1/4 wavelength of the frequency of the signal we want to transmit to be useful.
since the earth is not conductive and since it also has magnetism we cant use the earth as an antenna, but can we use a metallic mountain (mountain with a lot of metals like iron)? one can change the shape of it and use its huge body as a reflector, so can a mountain be used as an antenna?

Dave
 

Yeah, I do that all the time.

I'm thinking of building a VLF antenna, if someone has spare time could they help me move Mt Everest to my back yard please. I don't need all of it, only the metal from it of course so it makes the job much easier. :lol:

Brian.
 

I believe the Iron Mountains exist in Tolkiens Middle-Earth but not on our planet.

A medium wave antenna tower uses in fact the earth surface as ground plane respectively a reflector. In so far the idea isn't particularly new.
 

Status
Not open for further replies.

Similar threads

Part and Inventory Search

Welcome to EDABoard.com

Sponsor

Back
Top