Magnetic antennas for ultra low frequency and very low frequency radiation

A communication system, comprising:

• a transmit antenna including two or more symmetric coils wound around a closed-loop magnetic transmitter core, the transmit antenna configured to transmit an outgoing signal of very low frequency (VLF) or ultra low frequency (ULF) energy;
• a receive antenna including two or more coils formed from two or more wires wound around a closed-loop magnetic receiver core, the receive antenna configured to receive transmitted VLF or ULF energy as an incoming signal;
• and
• a processor configured to process the outgoing signal and the incoming signal, wherein the two or more coils formed from the two or more wires of the receive antenna are arranged to prevent a null signal as a received signal based on an orientation of a transmitter transmitting to the communication system.