Using 112- and 124-scale brass models, measurements of radiation patterns, isolation, and impedance are made on the existing antenna system of the U. S. Marine Corps Landing Vehicle, Tracked, Communications LVTC7. The present arrangement - eight antennas on a small platform - had resulted in a closely coupled system that degraded communications performance. A new antenna system design, consisting of a vhf broadband antenna and multicoupler combination to replace five vhf antennas, is proposed. This approach is studied using the 112-scale brass model. Calculations for the predicted range performance of each system are included.