When I started my radio amateur activities in 1979 I was 15 years old, so very young. At that time, noises were rare in the ether. The only problem we often had was the famous and dreaded TVI. Nothing a good Balun would not solve. Modern times have come and with them some problems for an amateur radio station. A reception with interferences originating from external factors such as a tower with antennas for Cellular, can end the joy of a dx in cw. We are surrounded by noises. What to do to have joy in listening to a distant colleague with the soft signal often a rare dx. The solution is in the images I present. This simple equipment will end any external interference that inevitably enters the antenna and obviously when entering the radio, the one prepared to treat the signals, amplifies the noise and there are ears to bear. This wonder is the creation of colleague DK9NL (Hans Merz). Clicking on the link will be on the page of I6IBE (Ivo Brugnera), who kindly provides everything needed for X-phase construction.
OBS: I know there is commercial equipment that does the same thing.
But when the amateur radio builds its own accessories, the pleasure is much greater. Then the tip is for everyone who has problems with interferences and do not want to spend a lot of money and have the pleasure of picking up the soldering iron and building their noise eliminator.