The Electro-Metrics EM-6905 60” Collapsible Active Vertical Antenna includes an amplifier that results in high sensitivity to the electric field in the frequency range of 1 kHz to 200 MHz. The EM-6905 can easily be used with any 50-ohm receiving instrument improving sensitivity over a passive device.
The EM-6905 provides 12 to 14 dB of sensitivity improvement over a Passive Vertical Rod Antenna in the range of 1 kHz to 10 MHz and 3 to 5 dB or more up to 30 MHz.