Dear Lidia
Thank you very much for the information. I am trying to find a relation between the changes in the ionosphere and the Hum experiences of others and myself. There is a daily cycle where the Hum increases during the evening reaching a maximum during the early hours and decreases again at dawn. However, there are times when the Hum reaches a high level both day and night which may last for several days. At other time the Hum may decrease to a very low level and to some may appear to have gone completely. The daily cycle can be accounted for by the effect of the Sun on the rotating Earth and the other variations may be due to Sunspot activity. >From what I have read the first is the 27 day Sunspot cycle due to the rotation of the Sun, which incidentally is very close to the Moon cycle, a subject which has been noted by many sufferers over the years. The 27 day Sunspot cycle causes day-to-day variations which cannot be predicted. There is also the 11 year Sunspot cycle that is well known and gives a maximum and minimum every 11 years. By the method suggested by John Beaman it may be possible to check this one by the numbers of Hum sufferers making complaints on open forum web sites, to the media and possibly from the archive records of local authorities. These are only a few suggestions and there is much work to be done before we have a positive answer. On Monday, April 14, 2014 8:20:58 AM UTC+1, John Dawes wrote: > Over the past few weeks I have been making observations of the Hum > signal, in particular the period between sunset and full darkness. > > During this period the signal changes from indistinct and erratic to a > strong clear signal toward midnight and the early hours, the change is > quite dramatic. > > This reminds me strongly of times spent in my youth listening to distant > radio stations which exhibit exactly the same qualities. > > I am not saying that the Hum is caused by radio waves but it is clear that > the ionosphere is directly connected to the Hum and a study of the daily > changing D,E and F layers would bring a clearing understanding of what is > taking place. > -- You received this message because you are subscribed to the Google Groups "Hum Sufferers" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at http://groups.google.com/group/hum-sufferers. For more options, visit https://groups.google.com/d/optout.
