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Posted by K3SIW Garry [ k3siw@sbcglobal.net ] on June 21, 2025 at 23:45:37.
In Reply to: Web SDRs for longwave and NDBs posted by Tim Brannon, WA5MD on June 21, 2025 at 15:12:45.
As Ray pointed out, KPH on the west coast is excellent at LF (http://kphsdr.com:8072/). If continental lightning activity isn't too high it often copies POA, 332 kHz, HI; TUT, 403 kHz, Amer Samoa; 400 kHz, MDY, Midway; MAJ, 316 kHz, Marshall Is.; AI, 320 kHz, S. Cook Is.; RG, 352 kHz, S. Cook Is.; RU, 372 kHz, Tahiti; MO, 377.5 kHz, Tahiti; BB, 384 kHz, Tahiti; and many more.
It also hears the 3 Russian VLF alpha stations below 15 kHz and Japanese Navtex stations on 518 kHz.There used to be an excellent station near the Oregon coast (https://www.smeter.net) but unfortunately it disappeared many months ago. Station http://207.102.144.154:8073/ is active from BC and usually hears POA well but not often other Pacific DX. Several stations in AB have impressive receive arrays but don't hear well at LF, at least in the summer. Perhaps they'll come back to life next winter. 73, Garry, K3SIW
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