We provide leading solutions in the field of securing military maritime systems networks. Due to the special nature of the marine environment with high humidity, wireless devices must pay attention to the privacy of their frequencies when used at sea. The GARDE® audio and video transmission system can be tailored to the appropriate frequency based on the applicable country and marine environment. Antennas used at sea also need special allocation. This ensures that the audio and video transmission system works stably and efficiently under conditions of high sea humidity and the impact of sea waves.