HI All,

Few days back I was facing Signal flashing problem. I asked each and every expert in Sat field some one told.
your LNB is faulty,
Some one told ur wire is loose
Etc etc ...

Finally I came to conclusion that Flashing is due to interferance of Other signals like CELLPHONE Towers around ur houses.
In open area where there is no towers you will not get flashing problem.
this has been tested in 5 cities of INDIA.