How do I eliminate wireless interference from a new neighbor´s unlicensed system?
The best way to reduce the interference is to work with him and agree upon polarizations, channels and coverage areas. One of you should use vertical polarization and the other horizontal polarization for PtMP. If you are using DSSS channel 1 for a certain area, then he should use channel 6 or 11. Both of you should be using sector panel antennas with good F/B. If you are using DSSS and he is using FHSS, then you must rely upon polarization, distance and sectorization for isolation between the systems. You may be able to place a null in your AP antenna pattern toward his nearest AP location. If possible, place your AP as far away from his AP as possible, so that your customers can use the directivity and F/B of the CPE antenna for isolation. If both of you are using FHSS, then you should agree to use separate non-interfering sets.
