Resources for VLF Monitors
Aerials for the ELF & VLF Bands
Resources Collection and Further Reading Suggestions for the Article:
'Aerials for the ELF & VLF Bands'
Part 1: RadioUser, January 2022: 51-54
Part 2: RadioUser, March 2022 (pp. TBC)
Books and Articles
Adams, M. et al (2018) ‘INSPIRE 2017 Solar Eclipse VLF Field Experiment’. INSPIRE Journal, Vol. 24: 19-28
Alexander, David (2009) The Sun (Oxford: Greenwood Press)
AL’ pert, Ya. L. and Fligel, D.S. (1995) Propagation of ELF and VLF Waves Near the Earth (Consultants Bureau)
Altgeld, C.A. (2222) The World’s Largest “Radio” Station (Sanguine) (Broadcaster’s Desktop Resource)
Aplin, K.L. et al (eds.) (2008) Planetary Atmospheric Electricity (Berlin-Heidelberg: Springer)
Barr. R. et al (2000) ‘ELF and VLF Radio Waves’; Journal of Atmospheric and Solar-Terrestrial Physics 62 (2000) 1689-1718
Biagi et al (2011) ‘The European VLF/LF Radio Network […]’. Natural Hazards and Earth System Sciences, Vol. 11: 333-341
Blundell, Stephen (2012) Magnetism. A Very Short Introduction (Oxford: OUP)
Burke, B.F. and Graham-Smith, F. (1997) An Introduction to Radio Astronomy (Cambridge: CUP)
Carey, K. (2007) Listening to Longwave (Reynoldsburg/ Ohio: Universal Radio Research)
Carey, K. (2015) More on Natural Radio (The Spectrum Monitor, May 2015: 75-77)
Carlson, W B (2015): Tesla: Inventor of the Electrical Age (Princeton & Oxford: Princeton University Press)
Cataldi, G. and D. (2013) Reception of Natural Radio Emissions in the ELF Band (INSPIRE Journal, Vol. 20/ 2013: 12-16)
Cohen, Richard (2010) Chasing the Sun (London: Simon & Schuster)
Cox, T. (2015) Sonic Wonderland: A Scientific Odyssey of Sound (London: Vintage Books)
Cristea, O. et al (2012): ‘Low-Cost Prototype Equipment for VLF Radio Wave Monitoring’ (Acta Technica Napocensis, 53,1: 47-51)
Dennison, Mike (G3XDV) (3rd ed., 2013): LF Today: A Guide to Success on the Bands below 1 MHz (Ch. 8; Bedford, RSGB)
Devi, I. et al (2008) VLF ‘Propagation Characteristics in the Earth-Ionosphere Waveguide’. Earth-Planets-Space, 60, 737-741
Dolean et al. (2012): Low-Cost Prototype Equipment for VLF Radio Wave Monitoring (Acta Technica Napocensis, 53; 1: 47)
Evren Ekmekçi (2004) VLF Antennas: http://www.institutotesla.org/pdf/Tesla-Theory-9.pdf
Fielding, J. (2014) ‘Getting Started in Radio Astronomy Part 1’ (RadCom, Vol. 90; No. 11; November 2014: 30-32)
Fielding, J. (ZS5JF) (2011) Amateur Radio Astronomy (Bedford: RSGB)
Friese, W. (2004) ‘Schumann-Resonanzwellen’ […] Funkamateur 11/04: 1111
-- (2004) Sfericsempfang (3 vols, Dessau: Wilhelm Herbst Verlag)
-- (2006) ‘Test des VLF-Power-Ferritmoduls LFM/5-50/24 von BAZ’ (Funkamateur 1/06: 25)
-- (2007) Außergewöhnliche Empfangsantennen (Baden-Baden: Siebel/ vth)
-- (2007) Sferics – Faszinierende Natürliche Radiowellen (Berlin: Funkamateur Library, Vol. 18)
-- (2007) ‘Empfangssysteme zum Detektieren von Gewittern’ (Funkamateur 02/ 2008: 149-51)
Funkamateure Dresden DD7NT (2012) SAQ auf Längstwelle (2012)
Galejs, J. (1965) ‘Schumann Resonances’ Radio Science Journal of Research NBSjUSNC- URSI Vol. 69D, No.8, August 1965
Goldsmith, M. (2018) Waves. A Very Short Introduction (Oxford: OUP)
Golub, L. (2014) Nearest Star: The Surprising Science of Our Sun (Cambridge: Cambridge University Press)
Gulley, R. (2020) ‘Radio Propagation Banners Explained’ The Spectrum Monitor, May 2020: 21-24; RadioUser, October 2020: 52-56
Hancock, M. (2017) The History of Rugby Radio Station (Urban&Civic plc)
Helliwell R.A. (1965/ 2006) Whistlers and Related Ionospheric Phenomena (Mineola, New York: Dover Publications Inc.)
Hood, T. (2014) ‘In the Beginning’ The Spectrum Monitor, January 2014: 45 (see also: CQ, April 2015: 104)
-- ‘The Ionosphere’ The Spectrum Monitor, February 2015: 62
Hunsucker, R.D. (1991/2011): Radio Techniques for Monitoring the Terrestrial Ionosphere (Springer)
Jago, L. (2001): The Northern Lights (New York: Alfred A. Knopf)
Jian S.; Georgeakopoulos, S. (2011) EM Wave Propagation into Fresh Water; Electromagnetic Analysis and Applications, Vol. 3: 261-266
Judge, P. (2020) The Sun. A Very Short Introduction (Oxford: OUP)
Kahn, D. (2013) Earth Sound, Earth Signal (Berkeley: University of California Press)
Kanal, S.: The Effect of Solar Flares on the VLF Radio Waves transmitted in the Ionosphere (Presentation)
Kimpfbeck, T. (2007) ‘DX-Empfang vom Schreibtisch aus, mit Ferrit- und Loop-Antennen’ (Funkamateur 8/07: 838)
Klawitter, G. (1991) Langwellen und Längstwellenfunk (Baden-Baden: Siebel/ vth)
Lashley, J. (2010) The Radio Sky and How to Observe It (London: Springer) (Chapter 9 on VLF Solar Monitor)
Launius, R.D.; Fleming, J.R. and DeVorkin, D.H. (2010): Globalizing Polar Science (New York: Palgrave/Macmillan)
Lutz, H. (2004) Längstwellenempfang mit dem PC (Marburg: beam-Verlag)
-- (2013) ‘Low Frequency Propagation’; Dennison, Mike (G3XDV) (3rd ed., 2013): LF Today […] (RSGB): 129-140
Melia, A. (2009) ‘Understanding LF Propagation’; Radcom, September 2009: 32; October 2009: 22; November 2009: 32
Moldovan et al (2012) The INFREP European VLF/LF Radio Monitoring Network […] Romanian Reports in Physics, Vol. 64; No.1: 263-274
Moldwin, Mark (2008) An Introduction to Space Weather (Cambridge: CUP) (excellent introduction)
Money, Paul (2012) ‘Sounds of the Aurora’. Sky at Night, November 2012: 44-45
Nelson, Stan (2014): ‘Meteor Detection in the 21st Century (The Spectrum Monitor, February 2014: 61-64)
- ‘The World of Amateur Radio Astronomy’ The Spectrum Monitor, April 2021: 18-21
Newton, Peter (2017): ‘VLF in Australia’. RadioUser, March 2017: 28-30
O’Sullivan, S. (2014) ‘Monitoring the Sun Using VLF’ (RadioUser, April 2014: 54-57)
-- (2015) ‘Band II Dxing’ (Radio User, May 2015: 48-51)
Palmer, P.I. (2017) The Atmosphere. A Very Short Introduction (Oxford: OUP)
Poole, Ian (2004) Radio Propagation: Principles and Practice (RSGB)
Rajagopalen, A.S. et al (2013) ‘Solar Activity Monitoring Through Real-Time Recording of VLF Wave Amplitude’ (International Journal of Engineering and Advanced Technology; Vol. 3, No.1; October 2013: 253-261
Reeve, W.D. ‘Listening to Jupiter’s Radio Storms’ RadioUser, September 2009: 32 (Part One); October 2009: 34 (Part Two)
-- (2010) ‘Listening to the Sun’s Radio Storms’ RadioUser, March 2010: 34
Richards, J.A. (2008) Radio Wave Propagation (Berlin-Heidelberg: Springer)
Riegler, T. (2007) Radiohören auf Lang- und Mittelwelle (Baden-Baden: Siebel vth ISBN 978-3-88180-663-3)
Romero, Renato (2007) Radio Nature: The Reception and Study of Naturally Originating Radio Signals (RSGB)
Schlegel, K. and Füllekrug, M. (2002/ 2007) 50 Years of Schumann Resonance (Physik in unserer Zeit, 33(6), 256-26)
Schneider, D. AD4CC (1994) Mother Nature’s Radio
Singh. H.B. and Pal, R. (1993) Submarine Communications (Defence Science Journal 43; 1: 43-51)
Tesla, Nikola (2011): My Inventions and Other Writings (London: Penguin)
Times of India (2014) ‘Navy Gets New Facility to Communicate with Nuclear Submarines Prowling Underwater’ (July 2014)
Van Horn, L. (2021) ‘Radio’s Basement Bands’ (in Global Radio Guide 2021)
(2021) ‘The World of Strange Military Signals’, The Spectrum Monitor, January 2021: 33-37 (37)
Wallace, J. (2010) Amateur Radio Astronomy Projects – A Whistler Radio (QEX, March/ April 2010: 20-23)
Wei-Yan Pan and Kai Li (2014 ed.): Propagation of SLF/ VLF Electromagnetic Waves (Springer)
Welsh, J. (2012) The Sun, Radcom, October 2012: 38
Wiessala, G (2012): ‘Radio in Time and Space: Time Signal Stations’ (RadioUser, October 2012: 8)
-- ‘Radio in Space and Time – Whistlers, Sferics and Tweeks’ (RadioUser, January 2013: 8-13)
-- Signals from Space and the Radio Sun’ (RadioUser, February 2014: 54-63
-- ‘Develop a Propagation Monitoring Routine; (RadioUser, February 2015: 52-57)
-- ‘VLF: Windows on Our World (and Beyond) Part 1’ (RadioUser, September 2015: 50-55)
-- ‘VLF: Windows on Our World (and Beyond) Part 2’ (RadioUser, January 2016: 52-57)
-- ‘Submarines and the Sun on VLF’ (RadioUser, November 2016: 33-37)
Windridge, M. (2018) Aurora – In Search of the Northern Lights (William Collins).
Online Articles and Websites
Alexanderson Society: http://alexander.n.se
Alpha & Omega Stations www.auroralchorus.com/omega.htm
Alpha Stations: Alpha: www.vlf.it/alphatrond/alpha.htm
Alvin Lucier: www.youtube.com/watch?v=rxUvMl_IxoQ
American Association of Variable Star Observers (AAVSO): http://www.aavso.org/vlf-station-list
American Meteor Society (AMS): http://www.amsmeteors.org/
American Radio Relay League (ARRL; Experimental VLF): http://www.arrl.org/news/hams-experimental-vlf-signals-heard-in-the-uk-europe
Anderson, et al (2020) ‘Detection of VLF Attenuation in the Earth‐Ionosphere Waveguide Caused by X‐Class Solar Flares Using a Global Lightning Location Network’: https://agupubs.onlinelibrary.wiley.com/doi/epdf/10.1029/2019SW002408
Antennas for VLF: https://www.nslijhs.com/A-COMPACT-VLF-ANTENNA-OPTIMISED-FOR-16-To-24Khz
Anthorn (European LORAN-C Website): http://www.loran-europe.eu/viewpage.php?page_id=24
Argo (Software): http://www.weaksignals.com
ASTRON: The International LOFAR Telescope: https://www.astron.nl/lofar-telescope/lofar-telescope
Astronomy-Log: List of VLF Transmitters: https://astronomylog.files.wordpress.com/2013/06/vlf-stations-list.pdf
Audio-Gallery of Meteor Events (AMS): http://www.amsmeteors.org/audio/index.html
Aurora (Auroral Sounds) www.aalto.fi/en/current/current_archive/news/2012-07-09 / http://research.spa.aalto.fi/projects/aurora
Aurora Service Radio: http://www.aurora-service.eu/radio/
Auroral Chorus (Stephen P. McGreevy, USA): http://www.auroralchorus.com
AWESOME Project: http://nova.stanford.edu/~vlf/IHY_Test/TechDocs/AWESOME%20Transmitters.pdf
BAA (Radio Astronomy Group): VLF Observations https://www.britastro.org/radio/vlf.html
Bakker, Roelof (accessed 2015): The PA0RDT-Mini-Whip: http://dl1dbc.net/SAQ/Mwhip/pa0rdt-Mini-Whip.pdf
BAZ Spezialantennen: http://www.spezialantennen.eu
Bennett, R. (2000) The INSPIRE VLF-£ Receiver: Theory of Operation: https://tinyurl.com/qfbcm9j
Beta Stations: www.vlf.it/russianvlf/russianvlf.htm
Bianchi, C. and Meloni, A. (2007) Terrestrial Natural and Man-Made Electromagnetic Noise: https://tinyurl.com/y8gmyvuk
Bradley, M. (2013) Monitoring Solar Flares by Radio Astronomy: https://tinyurl.com/yb9vw454
Butler, L. VK5BR (187) Understanding Underwater Radio Communication: http://users.tpg.com.au/ldbutler/Underwater_Communication.pdf
Cestron (VLF Systems for Submarine Communication):http://www.cestron.de/VLF-Systems
Clam Lake, Wisconsin: http://fas.org/nuke/guide/usa/c3i/fs_clam_lake_elf2003.pdf
CQDL (Germany) 2012: 648
Detection of Whistlers in Belgium (Poster): http://plasmon.elte.hu/publication/4.poster-conference-presentations/Darrouzet.pdf
Deutscher Amateur Radio Klub e.V. (VLF Reception): http://www.darc-c03.de/bastelprojekte-c03/146-saq
Drumgrange Communications www.drumgrange.com/product-areas/vlf-communications.aspx
DST Index (NOAA) www.ngdc.noaa.gov/stp/GEOMAG/dst.html
Dual-Frequency Observations of Diurnal Fading on DHO38: http://df6nm.bplaced.net/VLF/2006/vlf_DHO_dualfreq.htm
Earth Current Communications: https://pe2bz.philpem.me.uk/Comm/-%20ELF-VLF/-%20ELF-Theory/Th-115-EarthCurrents/com.pdf
Eddy, J. A. (2017) The Sun, the Earth and Near-Earth Space (NASA): https://tinyurl.com/yc9kpwbj
Ekmekçi, E. (2004): VLF Antennas (Nikola Tesla Institute): http://www.institutotesla.org/pdf/Tesla-Theory-9.pdf
Electronics Gallery of VLF Signals: http://en.wikibooks.org/wiki/Electronics/Gallery_of_VLF-signals
ELF and VLF Frequency Guide: http://www.vlf.it/trond2/list.html
ELF Clam Lake Fact Sheet: https://fas.org/nuke/guide/usa/c3i/fs_clam_lake_elf2003.pdf
ELF Signals: http://www.vlf.it/kurt/elf.html
e-LORAN Definition Document: http://ila.rin.org.uk/otherarchives/2007%20eLoran%20Definition%20Document-1.0.pdf
European Industrial Heritage Association (EIHA): https://www.erih.net
European Loran-C Network: http://www.loran-europe.eu/news.php
Exeter Observatory (VLF) Solar Flare Detection http://www.exeterobservatory.com/vlf-solar-flare-detection/
Federation of American Scientists (VLF): http://fas.org/nuke/guide/usa/c3i/vlf.htm
Freund, F. (2005) Cracking the Code of Pre-Earthquake Signals: https://www.space.com/1695-cracking-code-pre-earthquake-signals.html
From 50 to 500 kHz (some in German): http://www.db9ja.de/bandplan-bis500khz.html
Gallagher, D. (2021) ‘INSPIRE VLF-3 Receiver Notes’ (INSPIRE Journal, Vol. 25, Spring 2021: 35)
- ‘Sounds of Mars Helicopter Captured During Fourth Flight on 30 April 2021’ (INSPIRE Journal Vol. 25, Spring 2021: 14)
Geonics Ltd. (Commercial VLF Receivers): http://www.geonics.com/html/vlfsystems.html
Georghita, M. et al (2009); Testing a New Installed VLF/LF Radio Receiver […] https://tinyurl.com/y8e3dueh
Goliath LW Transmitter (Historical): www.cdvandt.org/goliath.htm and http://uboat.net/articles/35.html
Grahn LW/ VLF Antennas (Germany): http://www.grahn-spezialantennen.de/index.html
Guzel, E. and Canyilmaz, M.: ‘Sub-ionospheric VLF Perturbations […] https://aip.scitation.org/doi/abs/10.1063/1.2733175
Halley VLF Receiver (British Antarctic Survey): https://www.bas.ac.uk/polar-operations/sites-and-facilities/facility/halley/vlf-receiver
Hobby Space (Space Radio) http://www.hobbyspace.com/Radio/radio2.html
i-LOFAR (Brochure): http://lofar.ie/i-lofar-brochure-launched
INSPIRE (NASA) Project (including Newsletter): http://theinspireproject.org
Institute of Navigation: http://www.ion.org
International LORAN Association (ILA): http://www.loran.org
Ionospheric Radio Lab (University of Florida, UF): www.vlf.ece.ufl.edu
Jacobsen, T: ZEVS, The Russian 82Hz ELF Transmitter: www.vlf.it/zevs/zevs.htm
Journal of Atmospheric and Solar-Terrestrial Physics http://www.sciencedirect.com/science/journal/13646826
Joyce Hinterding: www.youtube.com/watch?v=4Zls3R3pMwk
Kamp, P.-H. (2000) SDR and VLF Time Signals: https://www.tapr.org/pdf/DCC2003-SDR-WWVB-Kamp.pdf
Kavanagh: (2011) Probing Geo-space with VLF Radio Signals: https://tinyurl.com/ptr7z7g
Kristian Birkeland (1867-1917): www.mhs.ox.ac.uk/sphaera/issue7/articl6.htm
Lapthorn, R. G3XBM (2012): VLF Amateur Radio (Presentation): https://tinyurl.com/y7j2e4lt
LF Engineering: www.lfengineering.com
Links to VLF Articles http://www.science.gov/topicpages/v/vlf+radio+wave.html
LOFAR (Ireland) http://www.lofar.ie
LOFAR (Low-Frequency Array for Radio Astronomy) http://www.lofar.org
LOFAR (UK) http://www.lofar-uk.org
LOFAR Telescope http://www.astron.nl/general/lofar/lofar
LORAN (Milestone): https://timeandnavigation.si.edu/navigating-air/navigation-at-war/new-era-in-time-and-navigation/loran
Loran-C (100kHz): http://www.loran-history.info
Lualualei US Navy VLF Transmitter: http://lualualei1959.com/newpix/lllvhf.htm
Meinberg List of Time Signal Transmitters: https://www.meinbergglobal.com/english/glossary/time-signal-transmitter.htm
Melia, A., and Nichols, S. (2008/09) ‘Understanding LF and HF Propagation’: http://tinyurl.com/24yck6w
Michlmayr, H. (2000?): Magnetic Antennae [sic] for ULF: http://www.vlf.it/inductor/inductor.htm
Morgan, D.: The Generation of VLF Emissions by Meteors: https://tinyurl.com/y98z4z34
Mother Nature’s Radio (Rob’s Web): http://www.robkalmeijer.nl/techniek/electronica/radiotechniek/hambladen/qst/1994/01/page49/index.html
MWLIST VLF Broadcast: www.mwlist.org/vlf.php
Natural Radio Lab: http://naturalradiolab.com
Natural Radio/ VLF Discussion Group: https://groups.io/g/VLF
Navy Shore Station LF & VLF Transmitters (History): www.virhistory.com/navy/xmtr-vlf.htm
Navy Shore Station LF & VLF Transmitters http://www.virhistory.com/navy/xmtr-vlf.htm
Navy VLF Stations http://blackradios.terryo.org/documents/publications/e-ELF.pdf
NDB List Website: Solar Section http://www.ndblist.info/solar.htm
Netherlands Institute for Radio Astronomy (ASTRON) http://www.astron.nl/
NICT (Japan): www.nict.go.jp/en/data/nict-news/index.html#block_top1
Nwanko, V.U.J: ‘Probing Geomagnetic Storm-Driven Magnetosphere-Ionosphere Dynamics […]’: https://tinyurl.com/ybyslrcv
Observing the Atmosphere with VLF Radio: http://abelian.org/sid
Observing the Sun in VLF (NASA): http://adsabs.harvard.edu/full/2008JBAA..118..124C
Omega Stations: www.auroralchorus.com/omega.htm
Peterson, G. ‘Tesla's Colorado Springs Lightning Observations’: http://www.tfcbooks.com/articles/tws6.htm
Prazeres, A. (2021) ‘” Natural Radio” as a Didactic Alternative in Wave Physics’ (INSPIRE Journal, Vol. 25, Spring 2021: 29)
Price, C. and Blum, MN. (2000): ELF/VLF Radiation Produced by the 1999 Leonid Meteors: https://leonid.arc.nasa.gov/MS025.pdf
Project ‘Sanguine’: https://en.wikipedia.org/wiki/Project_Sanguine
Radio Astrolab: http://www.radioastrolab.com/radio-astronomy/bands-elf-vlf-lf-and-nature-radio
Radio Communications of German U-Boats in WW1 and WW2 (History): http://uboat.net/articles/35.html
Radio Jove: http://radiojove.gsfc.nasa.gov
Radio Sky Pipe: www.radiosky.com/skypipeishere.html
Rault, J.-L. (2000) Searching for Meteor ELF/ VLF Radiation: https://www.imo.net/imcs/imc2009/pdf/rault_imc2009.pdf
Reception of Submarine Communications Systems: www.vlf.it/submarine/sbmarine.html
Reeve, W. (2010): Application of the UKRAA Very Low Frequency Receiver System: https://tinyurl.com/q5dltk7
Romero, R. Radio Waves Below 2kHz (Italy): http://www.vlf.it
Royal Institute of Navigation (UK): http://www.rin.org.uk
Rugby Radio (History): http://www.xeropage.co.uk/g3nyk/rugbyrs.htm
Russian Central Research Institute of Physical and Technical Measurements (VNIIFTRI): http://www.vniiftri.ru/index.php/en
SAQ (Grimeton) Transmitter (17.2kHz, a UNESCO World Heritage Site) http://alexander.n.se
SAQrx Software VLF Receiver (SM6LKM): https://sites.google.com/site/sm6lkm/saqrx
Schiffhauer, N. (2015) Observations on the Solar Eclipse (2015): www.satsignal.eu/Radio/Solar_Eclipse_DK8OK.pdf
Schlegel, K. and Füllekrug, M. (2002/ 2007) 50 Years of Schumann Resonance (Physik in unserer Zeit, 33(6), 256-26)
Schmitter, E.D. (2013) Modelling Solar Flare Induced Lower Ionosphere Changes […]; Annales Geophysicae 31:765-773; https://tinyurl.com/y97r45tf
Schuman Resonance www.vlf.it/Schumann/schumann.htm
Science Gov (USA): www.science.gov/topicpages/v/vlf+radio+wave.html
SFS/TRGRAM: www.phon.ucl.ac.uk/resource/sfs/rtgram
SID Monitoring Station A118 http://sidstation.loudet.org/stations-list-en.xhtml
SID Monitors and Stations www.smeter.net/stations/vlf-stations.php
Singh, R. et al (2009) VLF Studies […] in Indian Low-Latitude Regions […] https://tinyurl.com/y8v4ckh4
Siple (VLF) Station, Antarctica: http://vlf.stanford.edu/research/vlf-transmitter-siple-station-antarctica
Smiley Antennas (VLF): www.smileyantenna.com
Society of Amateur Radio Astronomers (SARA, USA) http://www.radio-astronomy.org
Spectran (Version2): http://www.sdradio.eu/weaksignals/spectran.html
Spectrum Lab: www.qsl.net/dl4yhf/spectra1.html
Square Kilometre Array http://www.skatelescope.org
Stanford VLF Group http://vlf.stanford.edu/research/introduction-vlf
Stations, ITU Licenses and Services below 22 kHz (Renato Romero) http://www.vlf.it/itulist/itulist.htm
Stormwise Antennas: www.stormwise.com
Sub-9kHz Amateur Radio: https://sites.google.com/site/sub9khz
Submarine Communication (Grimeton Website): http://www.grimeton.info/submarine_communication.html
Tesla’s Colorado Springs Lightning Observations: http://www.tfcbooks.com/articles/tws6.htm
Time Signal Stations www.meinbergglobal.com/english/glossary/time-signal-transmitter.htm
Twente University WebSDR: http://websdr.ewi.utwente.nl:8901
UDXF: VLF Guide (2001): http://www.udxf.nl/ELF-VLF-GUIDE-v1.0.pdf
UK Radio Astronomy Association (UKRAA, Radio Astronomy Group) http://www.britastro.org/radio
Ulas, M. et al (2002) Precursors of Earthquakes: VLF Signals-Ionosphere Relation: https://tinyurl.com/yddez3mg
UNESCO: http://whc.unesco.org/en/list/1134
University of Louisville (Moore Observatory): VLF Monitor http://moondog.astro.louisville.edu/index.html
Unknown ELF-Signals and Ground Currents: www.vlf.it/kurt/elf.html
US Navy: VLF, LW and MW (1973): http://www.navy-radio.com/manuals/0101-1xx/0101_113-02.pdf
US VLF Transmitters: http://fas.org/nuke/guide/usa/c3i/vlf.htm
Utility-DXers Forum: http://www.udxf.nl/ELF-VLF-GUIDE-v1.0.pdf
VERSIM Group: http://www.iugg.org/IAGA/iaga_ursi/versim/index.html
Viehl, H. (2015): Empfang Sehr Langer Wellen www.viehl-radio.de/homeda/vlf.html
Viehl, H. (DK8AR) LW Antennas and other Presentations (German): https://www.viehl-radio.de/homeda/dk8ar.html
VLF ‘Whistler’ Reception: http://www.techlib.com/electronics/vlfwhistle.htm
VLF Amateur Radio Europe: www.amateurradio.eu/tag/vlf
VLF Broadcast (10-150 kHz): www.mwlist.org/vlf.php?kHz=27.30
VLF Frequency Spectrum https://physics.info/em-spectrum
VLF Live Streams http://abelian.org/vlf
VLF Poster (British Astronomical Association): www.britastro.org/radio/downloads/VLF%20Poster.pdf
VLF Propagation http://lasp.colorado.edu/space_weather/dsttemerin/dsttemerin.html
VLF Receivers: www.naturalradiolab.com
VLF Resources (Website-Box): http://website-box.net/se-keyword/vlf+receiver
VLF Software Options: https://sites.google.com/site/sub9khz/software
VLF Sounds: http://www.spaceweather.com/glossary/inspire.html
VLF Stations (SID) http://sidstation.loudet.org/stations-list-en.xhtml
VLF Stations List (AAVSO): https://www.aavso.org/vlf-station-list
VLF Stations: S-Meter Site: http://www.smeter.net/stations/vlf-stations.php
WADI: Very Low Frequency: http://quality-geophysics.com/wp-content/uploads/2016/12/QG-Method-VLF-Wadi.pdf
Westcott, A. (2003): Naturally-Occurring VLF Radio Signals: http://myweb.tiscali.co.uk/andyspatch/vlf.htm
Wikipedia List of VLF Transmitters: https://en.wikipedia.org/wiki/List_of_VLF-transmitters
Williams, P. et al (2000) e-Loran and Amateur Radio […]: http://www.professordavidlast.co.uk/cms_items/f20090301150839.pdf
World Frequency List 10-100 kHz: http://www.h4.dion.ne.jp/~ja5fp/VLFList.pdf
World-Wide Lightning Location Network (WWLLN): http://wwlln.net/new
XiVero GmbH VLF Software Receiver (Germany): www.xivero.com/vlfreceiver
ZEVS –Russian 82Hz ELF Transmitter (T. Jacobsen): www.vlf.it/zevs/zevs.htm
Journals, Newsletters and Magazines:
EOS Magazine (American Geophysical Union): https://eos.org/current-issues
Funkempfang.de: http://www.hurcks.de
INSPIRE Journal (NASA, Archive) https://theinspireproject.org/default.asp?contentID=21
Lowdown (Archive): http://naturalradiolab.com/lowdown-archive
Monitoring Times (now: TSM, see below)
Practical Wireless (UK) www.radioenthusiast.co.uk
RadCom (UK) http://rsgb.org/mai
RadioUser (UK) www.radioenthusiast.co.uk
RagaZine https://www.britastro.org/radio/downloads.html
SAQ Grimeton Newsletter https://alexander.n.se/category/news/?lang=en
Space Weather Quarterly https://agupubs.onlinelibrary.wiley.com/doi/epdf/10.1002/swq.24 (latest issue)
The Spectrum Monitor (USA): https://www.thespectrummonitor.com
VERSIM Newsletter www.iugg.org/IAGA/iaga_ursi/versim/newsletter.html
GW
25th January 2022