Purpose and area of application: 

• automated detection, identification and measurement of parameters for the main channel and all image and intermediate radio receiver paths, through which interference can influence any radio devices;
• automated detection, identification and measurement of radio receiver susceptibility to nonlinear effects: blocking, cross modulation, all types and orders of bifrequency intermodulation, etc;
• electromagnetic compatibility analysis and prediction in the complex electromagnetic environment with the use of the radio receiver double frequency testing (DFT) results.

The main idea of this technology:

• adiolocation of the radio receiver through its antenna input, using the sum of two frequency sweeping signals and original synchronous tomography visualization of the receiver output on the PC display;
• discrete simulation of signal-noise-interference mixture transformation in the receiver (discrete EMC-analysis and prediction)

There are no analogs of our technology for automated detection and identification of all linear and nonlinear paths in radio receiver!

You can use the best measuring equipment, but you need our software to use our measuring and simulating technology! We possess 30 USSR inventions used for realizing our technique!

We have been successfully using and supplying this technology for ten years for testing of radio broadcasting, radio location, radio communication and other receivers in the frequency range 0.1kHz - 56GHz at radioelectronic and aerospace production facilities !

If you want to know more about DFTS, please see IEEE Trans. on EMC, Vol.42, May 2000, pp. 213 - 225, “Automated Double-Frequency Testing Technique for Mapping Receiver Interference Responses

Basic Block Diagram of DFT realization

Double Frequency Testing of Coherent Receiver

The main advantages of this technology:

• it is the most informative, expedient and efficient technology of radio receiver EMC testing and measuring;
• since 1988 it has been successfully used in USSR, Russia and Belarus for designing of the VHF, UHF, SHF and EHF radio receivers and systems used in military and civil aircrafts, satellites, ships etc;
• it can be realized in modern systems for standard measurement of nonlinear effects in radio receivers - blocking, cross modulation and intermodulation.

Automated Identification of Linear and Nonlinear Paths Detected in Radio Receiver

Supply variants:

• Development and supply of the DFT-system on the “turn-key” basis in accordance with the arranged technical task and specifications
• Adjustment of the Customer's monitoring and measuring complex and supply of the necessary additional hardware and specialized software
• Supply of the hardware and software complex for EMC monitoring and prediction which includes the DFT-system and the EMC analysis and prediction software complex EMC-ANALYZER