Electro-Metrics’ EM-6892 41” Active Vertical Antenna includes an amplifier that results in high sensitivity to the electric field in the frequency range of 10 kHz to 50 MHz.
The EM-6892 can easily be used with any 50-ohm receiving instrument requiring improved sensitivity. Its battery operation, which eliminates a control cable, adds to its simplified operation. The sealed lead-acid battery included is rechargeable overnight from both 110v and 220v 50/60 Hz power systems.
The EM-6892 provides 12 to 14dB improved sensitivity over the EM-6894 Passive Vertical Antenna in the range of 10 kHz to 10 MHz and 3 to 5 dB improved sensitivity or better up to 30 MHz.
Particularly helpful for automated testing is its flat antenna factor of +14 dB from 10 kHz to 20 MHz.
Specifications
Electrical
Frequency Range (calibrated): 1 kHz-50 MHz Dynamic Range: Typically 120 dB 1 µV/m to 1 V/m 3 dB Bandwidth: 9 kHz – 20 MHz Impedance: Designed to drive a 50-ohm load Saturation Level: Typically 126dB (µV/m) CW, 105 dB (µ V/m/MHz) Broadband Sensitivity: From –13 dB (µV/m/Hz) at 10 kHz to –40 dB (µV/m/ Hz) at 30 MHz, typical normalized to 1 Hz bandwidth Connector: Type TNC
Mechanical
Base Dimensions: Length: 236 mm (9.3″) Width: 186 mm (7.3″) Height: 99 mm (3.9″) Length Antenna Rod: Standard: 1.04 m (41″) Optional: 2.1 m (82″) Weight: 3.0 kg (6.5 lbs.)