Selected as sites of interest to serious amateurs
This page contains the following sections. You can click on them to jump directly to the section.
ELF & Natural Radio
Sites concerned with monitoring natural radio.
| A BEGINNER'S GUIDE TO NATURAL VLF RADIO PHENOMENA | Excellent & wise overview of the hobby by Michael Mideke - great starting point! |
| RADIO WAVES below 22kHz | Renato Romero's superb site for design and practice. Many contributors with theory, construction articles, and results. Coverage of ULF as well. A must see. |
| Natural VLF Radio Phenomena | Steven P. McGreevy's home page. A treasure trove of information on the craft. Wonderful recordings are available here. Be sure to check out several of his documents: The VLF Story, Travels to Great VLF Listening Spots, and The VLF Listener's Handbook. |
| Notes on Domestic VLF Reception | Paul Nicholson's detailed description of tracking down and solving the numerous problems with listening at home. |
| VLF Group (Yahoo group) | Excellent discussion group focused (mostly) on Natural Radio - hosted by Mark Karney. |
| VLF Whistler Reception | Discussion of experiments by Charles Wenzel with eField and hField receivers with several examples including a complete eField system for home listening as well as a tiny portable receiver. Includes nice discussion of using Spectrum Lab. Check the rest of his great site here. |
| LWCA Natural Radio site | Hosted by Mark Karney. Good introduction and jump site on the topic of Natural Radio. |
| Larry's Very Low Frequency Site | Active site reporting current activities. Recordings posted. Equipment information. |
| Corrected GeoMagnetic coordinates | Use this site to calculate your magnetic conjugate point. |
| World magnetic chart | World map showing magnetic coordinates. Easy to estimate conjugate points. |
ULF Monitoring—possibly for precursors to seismic
events
These sites demonstrate different approaches to monitoring ULF signals.
| A. C. Fraser-Smith | Professional work of Prof. Fraser-Smith with papers and bibliography. |
| The Elfrad Group | Earth-probe antenna monitoring of ULF. Construction information. Continual monitoring. |
| ULF induction coil | Hans Michlmayr doccuments the construction of a classic induction coil magnetometer with detail drawings, schematics, and photos. |
| Radio Research | Peter Schmalkoke site with Scott Fusare's e-Field buffer for Schumann resonance monitoring. |
| ulfelf · ULF-ELF Radio (Yahoo group) | This group is "devoted to ULF and ELF radio waves with an emphasis on the Schumann resonances, brain wave research, earthquake precursors, the equipment necessary to receive them, and time domain electromagnetics." |
| Electric Terra | Brian's site with detailed construction information and results. His site covers aspects of ULF, ELF, and VLF. |
Schumann Resonance
These sites provide background on monitoring the Schumann Resonance.
| Geophysical Observatory at Modra | Current Schumann resonance spectra smoothed by moving average. |
| The Earth-ionosphere cavity resonances | Nice average spectrum from 0 to 100 Hz (click figure to enlarge). |
| Schumann Resonance Recordings | Excellent project work and results by Hans Michlmayr. He discusses induction coils versus eField receivers. |
| Receiving the Schumann Resonance | Renato Romero's work on receiving the SR with good reference links. |
| ULF Receiver | Construction And Deployment Of An ULF Receiver For The Study Of Schumann Resonance In Iowa |
| Cleaning Schumann Resonances | Peter Schmalkoke's interesting article on post processing SR recordings. |
| Sensitive Diagnostic for Global Change | Using the Schumann Resonance to measure global temperature. |
SID Monitoring
Sites concerned with monitoring Sudden Ionospheric Disturbances.
| AAVSO SID Monitoring | AAVSO SID Program of solar observers. |
| AAVSO SID Equipment | AAVSO SID Receiver and A/D converter schematics. |
| Detection of a Gamma Ray Burst by Observing Radio Signals | Gamma Ray burst and Solar Eclipse effects on VLF. |
| Moore Observatory Solar Flare Monitor | Receiver design and construction. Continual monitoring. |
| Observing the Ionosphere with VLF Radio | Paul Nicholson's great site on SID reception and interpretation. Highly recommended. |
| SID-GRB@home | Treasure trove of links and information an SIDs. |
| VLF Radio Stations | VLF radio stations around the world. Frequency and power. |
Atmospherics
Sites concerned with monitoring and analyzing atmospheric electricity.
| Atmospheric Electricity HomePage | Comprehensive bibliography and resource links by Monte Bateman. |
| Giles Harrison | Useful academic site by Dr. Giles Harrison. Theory and research tools. |
| Atmospheric Electricity | Excellent project by Keith Garwell on monitoring atmospheric electricity and ions. |
| Electric Field Mill Fabrication | Jim Campbell's page describing the construction of an electric field mill. |
| Fieldmill Voltmeter MK 2 | Nice field mill with pictures and schematic by Paul Zimmermann. |
| Die Feldmühle | Field mill theory and construction (in German). Includes theory and calibration. Using FireFox, the Translate extension using Babelefish does a nice job on this site. |
| Sferics Research Project | Work by Dick Fergus developing theories on severe storm detection. Includes detailed design & construction. |
| Moving Charge Sensor | Charles Ahern has developed a simple device for detecting local charge. I can attest that it also will easily register lightning strokes. |
| Holographic Array for Ionospheric Lightning (HAIL) Research | Home page for Stanford University's HAIL project. Includes graphic database of multisite VLF-based sferic monitoring. |
| The Mystery of Cloud Electrification | Detailed article on how charge separation develops in clouds, lightning in hurricanes. |
| Measurement of atmospheric electric fields | Short paper at the John Chubb Instrumentation site. |
| INTRODUCTORY WORKSHOP IN ELECTROSTATICS | Excellent set of papers on electrostatics in general at the John Chubb Instrumentation site. |