MA2700A InterferenceHunter Help : MA2700A Overview : Antenna and Filter Selection
 
Antenna and Filter Selection
The MA2700A is designed to connect to a directional antenna that has a type N female connector at the back of the antenna’s boom. To connect properly, the antenna’s connector must be rigidly connected to the boom and facing toward the rear of the antenna. The connector must be at least 16 cm behind the rear-most antenna element to avoid interference between the MA2700A’s body and the antenna element.
A filter can be connected between the antenna and MA2700A, to reduce the impact of high level signals at other frequencies. A short filter with male and female type N connectors will work best for this application.