Skip to content
Free Standard Shipping for orders over $30 USD (USA and Canada only)
Free Standard Shipping for orders over $30 USD (USA and Canada only)

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

$ 1,999.00

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 observe the valid legal regulations for the operation and possession of our test transmitters! We are not liable for any damage, direct or indirect, resulting from the use of our test transmitters. The operation or possession of a test transmitter may be prohibited, depending on the country!

Make absolutely sure that the test transmitter can not cause any disturbances in the regular radio operation (also observe harmonics!) (Corresponds to well shielded EMC chamber / laboratory)! The misuse of the test transmitter as a jammer is prohibited! By purchasing these devices, you automatically accept these terms.

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

* The item is ordered by demand, so expect a 2-3 week lead time from time of purchase.