VLF and PCBs

Following Wednesdays meeting here are some web links to some of the topics James discussed.
 
Many VLF Sounds and the BBB-4 E-field Receiver  
 
http://www-pw.physics.uiowa.edu/mcgreevy/
http://www.auroralchorus.com/

Nasa Space Physics Ionoshpere Radio Experiments  http://theinspireproject.org/

An Improved Gyrator Tuned VLF Receiver   
http://www.aavso.org/observing/programs/solar/gyrator.shtml

A Minimal Gyrator II VLF Receiver   
http://www.aavso.org/observing/programs/solar/minimalVLF.shtml


See Storms Live!     
http://www.blitzortung.org/DF/Webpages/index.php


Hear Storms Live!     
http://abelian.org/vlf/


Audio Spectrum Analysis Software
http://www.visualizationsoftware.com/gram.html


Making PCB's with a Laser Printer and Clothes Iron

http://www.dr-lex.be/hardware/tonertransfer.html
http://www.fullnet.com/~tomg/gooteepc.htm
I have used pages carefully removed from vogue or other semi glossy magazines with good results.
 
73's
James

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And from Mark - G1NYP -

For those playing with vlf i found SPECLAB to b a great program has loads of preset filters including a v good one for removal of mains hum which is a serious problem on a e field rx

its a free download without some form of 50 hz removal i have found even when away in the outback of surrey that pesky mains fills the headphones

regards

Mark

G1NYP

http://freenet-homepage.de/dl4yhf/spectra1.html