TBWA2/40dB

The Tekbox TBWA2/40dB is a compact, USB-powered high-gain wideband preamplifier covering 2 MHz to 6 GHz, designed as a versatile building block for laboratory setups and EMC pre-compliance test environments where maximum sensitivity is required. With approximately 40 dB of gain from 10 MHz through 2 GHz — rolling off gradually to 34.7 dB at 6 GHz — and a noise figure of 5 dB at 2 GHz, it provides 20 dB more gain than the TBWA2/20dB, making it the natural choice when working with very weak near-field signals from EMC probes or when maximum system sensitivity is the priority.

Key specifications include a 1 dB output compression point of +20 dBm at 2 GHz, 40 dB of reverse isolation from 100 MHz to 6 GHz — significantly better than the 20 dB variant — a maximum input power of -10 dBm, and 50 Ω SMA connectors at both input and output. The unit is powered via a Mini-USB-B connector at 4.5–5V nominal / 210 mA typical, compatible with any standard USB supply, power bank, or laptop USB port. A gain file for Tekbox EMCview software is available for download, enabling calibrated measurements directly within the EMCview pre-compliance test environment. It is available paired with the Tekbox TBPS01 EMC near-field probe set as a complete diagnostic kit.