Development of Transmitting Coil Antenna

VLF Gang aims to develop a low-frequency transmitting antenna system (400–600 Hz) with programmable frequency switching for SAVRONIK, while evaluating solid-state relays as a replacement for electromechanical relays to reduce noise and voltage spikes. The project covers antenna winding design and simulation, circuitry for signal generation with solid-state switching and frequency hopping, and a user interface for real-time monitoring and frequency selection. The system is designed to transmit pure sinusoidal signals detectable at least 3 meters away at each selected frequency.