Dear friends: I think, the signals in 38.0, 40.4 and 44.2 could be Swedish Navy. The last time I listen them was on Nov-15, with 38.0 and 44.2 kHz in parallel (on/off at same time) 73 de -Manuel Carb
Dear Stefan: Of course, usually I read rsgb_lf_group all days; but I haven't any good contribution because I live in a city with too much RF noise... :-( But sometime I go to a good rural place and l
Dear friends: Some in spanish, but here you have all the UIT recomendations, P-series (Propagation): http://webs.uvigo.es/servicios/biblioteca/uit/product/P.htm P.368-9: Surface wave (10 KHz-30 MHz).
Dear friends: Also good reception of SAQ in Spain: * 09 UTC: S/N~20 dB * 12 UTC: S/N~15 dB QTH: Torrejón de Ardoz (Locator IN80gl). Receiver: Converter + SDR-14. Software: Spectravue. Antenna: Wellbr