We present a method to enhance the accuracy of platform-based. high-frequency (HF) direction-finding (DF) systems using dynamic mode selection. To improve bandwidth and efficiency. the metallic platform supporting the DF array is used as the primary radiator by employing electrically small antennas to excite linearly independent combinations of its characteristic modes (CMs). https://www.dawnsdinners.com/product-category/hot-water-spout-nozzle-pipette/