Active ELF, SLF and ULF tracking Antenna with high gain (1Hz to 9kHz). Unbeatable directionality, perfect for signal tracking. Including internal 25dB pre-amplifier (optional 35dB).
Active High Gain LF Tracking Antenna with best directionality (9kHz - 1MHz). Adjustable resonance frequency for highest possible gain. Unbeatable directionality, perfect for signal tracking.