Wire diameter -> resitance -> thermal noise floor (thicker wire has less resistance and less noise)

**Spider coil**
{{ ::screen_shot_2017-12-04_at_11.39.56.png |}}
[[http://www.ak-modul-bus.de/cgi-bin/eng/iboshop.cgi?showd160!15%2C994376951021997%2CSPIDERWEB-KIT4|buy]]

====== Resources ======
http://www.vlf.it/serge1/article_1b.html\\
https://sidstation.loudet.org/antenna-theory-en.xhtml\\
http://www.vlf.it/looptheo7/looptheo7.htm\\