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I would like to put up an two outside antenna on the same tower for a sds200. This will be used for general scanning of all bands. The two antennas will be a Diamond D-130NJ and a Sirio SD 3000. Is this a good antenna pair or are there better setup? Where would you mount on the tower? What diplexer and cables shoud i used? Where should the diplexer be placed? Thanks for the help.