VLF Supersid
VLF Stations MonitoredNAA 24000 kHz Cutler, MaineNLK 24800 kHz Seattle, WashingtonNML 25200 kHz MaMoure, North DakotaNPM 21400 kHz Lualualei, HawaiiNAU 40800 kHz Aguada, Puerto RicoNRK 37500 kHz Grandivik, IcelandBelow are typical charts using monitor 9488from October 27, 2022. NRK is in Iceland andrarely detected...but, just in case?