UBBV NF-35

The Aaronia UBBV-NF 35 is a high-gain low-frequency preamplifier covering 1 Hz to 30 MHz (with usable response to 35 MHz at -3 dB), designed for near-field and very low-frequency signal measurements requiring both high impedance and high gain. With a 100 kΩ SMA input and a typical gain of 35 dB — 10 dB more than the UBBV-NF 25 — it is the preferred choice when working with particularly weak low-frequency signals from high-impedance probes or sensors.

Key specifications include a maximum input DC voltage of 10 VDC, a maximum input AC voltage of 3 V (2.1 V rms), and a maximum output power of +10 dBm into 50 Ω. The output uses a standard 50 Ω SMA male connector, compatible with any spectrum analyzer. It is well-suited for near-field EMC measurements, low-frequency emissions testing, and sub-30 MHz weak signal detection.

Each unit is developed, produced, and calibrated in Germany at the Aaronia factory. It ships with an aluminum transport case, international power supply with adapters, SMA tool, and manual. Weight is 146 g with dimensions of 81 × 61 × 29 mm.