Hi Gary, Nothing from Sheffield (!) and Budapest at that time. Please, could you specify locations and time zones of those captures (utc, CET or else)? Indeed such strong signals happend occasionally
Hi Laura, The captures are from today, 12/11/2013. The time is shown on my capture as utc between 1000 & 1200utc. My location is England IO83qo & Henny's is Netherlands JO22md. Quite a long way apart
Gary, Henny, Laura, similar effect have happened occasionally on other VLF MSK signals, like DHO and GBZ. Sometimes the encrypted pseudo-random modulation is being temporarily replaced by simple peri