I live in Iran and here we face jamming while receiving satellite signals.Its sometimes possible to cover left,right and back of the dish to eliminate the jamming signal.the questions are :
1.how is it possible for the jamming signal to fadeout only a special frequency?Is it using the same frequency with the opposite phase?
2.It seems the jamming signal can not fadeout the input signal from satellite as installing the dish down at the lower heights helps to oppose the intruder signal.So is it correct that jamming aimed LNB directly?But covering LNB did not help.
3.Some people say inserting three magnets 60 degrees round a front feed dish a little helped the problem.(we use both front feed and offset dishes)
4.Is it possible to get stronger signal from a bigger dish to eliminate the problem?If yes,how its possible to parallel two or three dishes all aiming to one satellite and get stronger signal?
Sunday 25 August 2013 5:13PM
I live in Iran and here we face jamming while receiving satellite signals.Its sometimes possible to cover left,right and back of the dish to eliminate the jamming signal.the questions are :
1.how is it possible for the jamming signal to fadeout only a special frequency?Is it using the same frequency with the opposite phase?
2.It seems the jamming signal can not fadeout the input signal from satellite as installing the dish down at the lower heights helps to oppose the intruder signal.So is it correct that jamming aimed LNB directly?But covering LNB did not help.
3.Some people say inserting three magnets 60 degrees round a front feed dish a little helped the problem.(we use both front feed and offset dishes)
4.Is it possible to get stronger signal from a bigger dish to eliminate the problem?If yes,how its possible to parallel two or three dishes all aiming to one satellite and get stronger signal?
I appreciate in advance .