Low frequency amplifier UBBV-NF-25 (1Hz to 50MHz)

Aaronia externer Preamplifier am Spectran (SPECTRAN nicht enthalten)

Aaronia externer Preamplifier am Spectran

Aaronia externer Preamplifier am Spectran (SPECTRAN nicht enthalten)

Included in delivery

  • UBBV-NF-25 Broadband Preamplifier
  • 2 mounting brackets for SPECTRAN
  • LiPo-Battery (integrated)
  • Battery charger and power supply incl. international adapter set
  • Aluminum carrying case with foam protection
  • Detailed English manual (on CD)
  • SMA tool
  • Cleaning brush

Application examples

  • A "must have" for EMC measurements
  • Amplification of very weak signals
  • Boosts any antenna gain
  • Compensation of negative antenna gain


  • Currently there are no additional options available.


  • USB Cable (UBBV)

    To connect your external preamplifier to the PC. Special version with high performance EMC-ferrite. Highly recommended for PC use. You can find more product details in our online shop.

  • 1m, 5m or 10m Low Loss SMA Cable

    High quality special SMA cable for connecting any HyperLOG®-Antenna or BicoLOG®-Antenna or the preamplifiers UBBV Series with various test equipment like Aaronia RF Spectrum-Analyzer. You can find more details about the article in our online shop.

  • SMA to N Adapter

    To connect any Spectrum Analyzer etc. with N connector to the HyperLOG antenna (Above SMA cable needed). You can find more details in our online shop.

  • 20dB SMA Attenuator

    Expands the measurement range from +20dBm to +40dBm. More product details in our online shop.

  • DC-Blocker (SMA)

    The DC-Blocker must be used if you want to measure DC powered signals like DSL/ISDN lines. It prevents the RF-input of the SPECTRAN from being destroyed by the DC-voltages. Simply connect the DC-Blocker to the SMA-input of your SPECTRAN. More product details in our shop.




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frequency range of the spectrum analyzer
€ 499,95*
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Technical data


  • Frequency range: 1Hz to 50MHz (60MHz with -3dB bandwidth)
  • Gain: 25dB (typ.) 
  • Max. input DC voltage: 10VDC
  • Max. input AC voltage: 3V or 2.1V RMS
  • Max. output power: +15dBm (50 Ohm)
  • Input: High impedance (100 kOhm) SMA (f)
  • Output: 50 Ohm SMA (m)
  • Weight: 146gr
  • Warranty: 10 years



  • Suitable for any brand of Spectrum Analyzers or antennas
  • Fits perfectly to any SPECTRAN (mounting brackets included)
  • Runs with battery or external power supply
  • Integrated LiPo battery (up to 3,5h run time)
  • Integrated calibration data on EEprom (readout via integrated USB interface)
  • Very thick (2mm) aluminum housing offering very good screening
  • Includes international charger (110V/220V) and adapter


25dB Broadband Pre-amplifier UBBV-NF-25


High-End Pre-amplifier up to 60MHz. Works with any brand of Spectrum Analyzers and directly fits to any SPECTRAN. Broadband sensitivity increase by up to 25dB.

External 25dB pre-amplifier UBBV-NF 25. For optimum performance when measuring weak signals in the frequency range of 1Hz to 60MHz (or 100MHz with lower gain, see graph).

The UBBV NF series provides a high impedance input signal and therefore can be operated even with the antennas of the MagnoTRACKER series or other regular 50 ohm devices. The calibration data of the amplifier are also stored in the Spectrum Analyzer Software "MCS".

The UBBV-NF can be operated via an internal battery (running time approx 3-4 hours) or via the included AC adapter. Via the USB port it´s possible to read the calibration data of the preamplifier, which are stored in the internal EEPROM and so can not be lost.

A "must have" to get the maximum performance out of any SPECTRAN unit.

Made in Germany:

All UBBV amplifier are developed, individually produced and calibrated in Germany at the Aaronia factory. This guarantees highest standard so that Aaronia can offer every customer a full 10 years warranty for all UBBV2 Preamplifiers.


Included in delivery:

All UBBV Pre-amplifier will be shipped with many accessories in a high-value aluminum carrying case. More details can be found at above section "Included in delivery".