Sondeo Ionosférico
Manual URSI de Interpretación de ionogramas:
https://repository.library.noaa.gov/view/noaa/10404
Ionogramas del INGV en Argentina:
http://ionos.ingv.it/Tucuman/latest.html
http://ionos.ingv.it/bahiablanca/latest.html
Diseños de ionosonda AIS:
http://www.earth-prints.org/bitstream/2122/4368/1/the_new_ais_design_report.pdf
http://www.earth-prints.org/bitstream/2122/986/1/Zuccheretti647_659.pdf
Sondeos Oblicuos:
http://ion.pi5fts.nl/index.html
http://geophys.aari.ru/oblique_sounding/realtime.php
http://websdr.ewi.utwente.nl:8901/chirps/article/
Otros:
http://websdr.ewi.utwente.nl:8901/chirps/article/
http://www.sgo.fi/~j/gnu_chirp_sounder/
http://jcoppens.com/radio/prop/index.en.php
http://nvlpubs.nist.gov/nistpubs/Legacy/MONO/nbsmonograph80.pdf
http://www.qsl.net/zl1bpu/IONO/iono101.htm
http://lnu.diva-portal.org/smash/get/diva2:535533/FULLTEXT01.pdf
https://aa6e.net/wiki/Working_with_Time_Signals
http://www.physics.princeton.edu/pulsar/K1JT/HFTOA_1.pdf
http://www.sws.bom.gov.au/IPSHosted/INAG/uag_23a/uag_23a.html
ftp://ftp.ngdc.noaa.gov/ionosonde/documentation/VIPIR/Ionospheric_Sounding-ASEN-5245.pdf