Directional RF Field Generator DFG4040 (400MHz - 4,4GHz)

Included in delivery

  • DFG 4040 Field Generator with integrated battery
  • transport case
  • pistol grip
  • International Charger/Power Supply
  • SMA Tool
  • USB-Cable
  • Control Software

Application examples

  • Perfect for RF immunity tests
  • Perfect for RF attenuation measurements


  • Currently there are no additional options available.


  • Heavy Multifunctional Pistol Grip

    Highly recommended for the usage of our HyperLOG antennas: Quick and easy change of antenna polarization, perfect antenna handling (even with the more heavy HyperLOG 40xx and 30xxx series). A MUST-HAVE for any pro user. You can find more product details in our online shop.

  • Large Aluminum Tripod

    Height adjustable, high stability. HIGHLY recommended for usage with HyperLOG 30xxx, 40xx and BicoLOG antennas.You can find detailed information in our online shop.

  • 12V Car Power Adapter

    Charges your SPECTRAN or UBBV preamplifier through the cigarette lighter. Recommended for the mobile use of the SPECTRAN Spectrum Analyzer. 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.

  • N to SMA Adapter

    To connect any Spectrum Analyzer etc. with N connector to the BicoLOG antenna (Above SMA cable needed). More details about the article in our online shop.


999.95 €
(400MHz - 4,4GHz)

Technical data

  • Frequency range: 400 MHz to 4,4 GHz
  • Up to 3V/m output power (1m distance)
  • Perfect for RF immunity measurements
  • Perfect for RF attenuation measurements
  • Highest power level: +17dBm
  • Smallest power level: -48dBm
  • Up to 65dB dynamic range
  • Frequency accuracy: 150Hz (<1GHz), 600Hz (<4GHz)
  • Modulations: AM, FM, PM
  • Onboard TCXO for very high frequency accuracy
  • Can be connected to external reference clock for even higher accuracy (female SMA-connector)
  • Onboard CPU and memory for intelligent self-running profiles
  • Stand alone operation (no PC or USB connection required)
  • Battery operation up to 4h
  • USB connector for realtime PC control or for storing programs
  • Incl. 12V power supply for continuous operation
  • Can be operated from 12V Car and Truck power system
  • Dimensions: 590x360x30mm
  • Small Weight, 1400grams incl. battery

Diretional Field Generator DFG4040


Portable RF field strength generator DFG4040 with excellent directivity and high output power

The perfect test stations or test transmitter for EMC measurements or the assessment of screening effects (eg shielded rooms or Screen chambers).



The portable, battery-operated field strength generator can be used with simple or complex batch programs that start automatically after power (eg CW signal, sweep, pulse, frequency hopping, etc.). Also, the level can be varied; programmable. A direct control (eg at the laboratory bench) is possible via USB. An appropriate, easy to use software for Mac, Linux and Windows, is included.


Please note the applicable legislation to use and own this field generator!
We are not liable for any damages, directly or indirectly, resulting from the use of the field generator.
The operation or possession of this generator can, depending on the country, be prohibited!
Make absolutely sure that the test transmitter not interfers with regular RF operations (also note harmonics!) and use it in well shielded EMC chambers / laboratories only!
The improper use of the test transmitter as misery is strictly prohibited!
With the purchase of this equipment you automatically accept these conditions.