The Laplace Synthesisers cover both conducted and radiated RF immunity test requirements. The frequency coverage extends from 100KHz to 230MHz for conducted tests (RFIC-4-6) and 30MHz – 6GHz for radiated tests (RF3000/RF6000). They are all controlled from the users PC via a USB link, and powerful Windows software is included to enable the user to control all the parameters of the test, to monitor the test in progress, and to view the results.

Key Points

  • Creates the signal to be applied to the product
  • Controls the intensity of that signal
  • Monitors the condition of the EUT
  • Acts as the interface between a PC and the test
  • Includes PC (Windows) software to enable very simple operation
  • Complies with IEC61000-4-3 (RF3000/RF6000)
  • Complies with IEC61000-4-6 (RFIC-4-6)

Software Details

The RFSynth software will run under any version of Windows from XP to Win10. It allows the following parameters to be set:

  • Start frequency
  • Stop frequency
  • Frequency step (%)
  • Stress level (V/m)
  • Modulation (AM and pulsed)
  • Dwell time
  • EUT monitoring (ignore/stop/continue)
  • EUT prompt output

It includes facilities to load calibration data for the test cell, field probe or CDN as appropriate. Outputs include:

  • Display of target and actual stress level vs frequency
  • EUT monitor
  • System status
  • Hardcopy via Windows printers
  • Results file storage to disk and subsequent retrieval

Product Specification

Start frequency 100KHz 30MHz 30MHz
End frequency 300MHz 3GHz 6GHz
Control feedback RF (from CDN cal. adaptor)
DC (from E series CDN)
Current Clamp
DC from Laplacell
RS232 from sensor
Compatible with  CDN
EM Clamp
Anechoic chamber 
Level control mode Pre-calibrate scan (conventional mode)
Closed loop (with E series CDN)
Pre-calibrate scan or closed loop


Common to all synthesisers:
Frequency step
 0.1% to 10% of current value
 Output Level
-60dBm  to 0dBm   (carrier signal)
Output level Indication
Feedback level indication
Bargraph display
 THD (worst case)
 1KHz sine, 80%  AM modulation.
217Hz, 200Hz, 18Hz, 10Hz & 1Hz pulsed. 100% level
 Control Mode
 Open loop (Pre-scanned) or closed loop. (Software selectable)
 EUT status
 Volt free contact relay input
 Fault modes
 Stop, pause, continue
 EUT prompt
 4 pole c/o volt free contacts
 Pulsed, Continuous, off
Associated Downloads
Data Sheet – RFIC-4-6
Data Sheet – RF3000/RF6000