Hello John are you a sufferer? I hear the Hum all the time in Ireland and Im having trouble getting the EPA to act.
please join this group. https://www.facebook.com/groups/421777554665488/?fref=ts On Thursday, 5 March 2015 21:32:45 UTC, John Dawes wrote: > > The Hum level is observed to make considerable variations that can be > traced to three main causes. > > First is the daily cycle caused by the changing voltage on the power grid, > this reaches a maximum at about 1 to 2 am each day. > > Second is the daily cycle of the ionosphere that takes place between > sunset and sunrise. > > These two cycles are fairly constant and predicable, however, the > ionosphere is dependant upon solar activity such as sunspots that can be > very erratic. > > The third variation is caused by the weather, in particular the boundary > between high and low pressure systems. It is possible to predict changes > ijn Hum level using weather forecast charts. > > -- 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.
