RF Meters and Sensors

Three types of RF Sensors and Probes:

  • Sensors used for measuring high field levels as required for immunity testing. To avoid distortion of the field, these sensors are connected via fibre-optic cables. They provide the feedback to the test controllers to enable the field level to be controlled accurately.
  • Clamp-on Probes for measuring RF signals on cables. Used for emissions compliance measurements and for injection of RF on cables for immunity tests according to IEC61000-4-6.
  • Environmental monitoring meters.

RF sensors:

A range of miniature isotropic sensors connected via fibre optic cable to avoid any interaction with the RF field. This ensures that measurements are of the highest integrity, unaffected by any conductive cables or associated meter body. These Sensors are available for the use with sythesisers as part of an immunity test system in an EMC test chamber.

  • Ideal for use in EMC immunity test chambers
  • Provides real time feedback for stress level control
  • Includes fibre optic interface with RS232 and USB outputs
  • Total and individual axis outputs (Vector sumation or X, Y, Z)
  • Miniature size
  • 2 versions: battery powered and laser powered.
  • Battery powered version includes battery charging station. 12 hour operating time before recharging necessary.
  • Laser powered version for continuous operation. Battery charging not required. Laser is included with the fibreoptic interface.
  • Standard fibre optic cable length is 10m. Longer cables available to order.




Frequency (Lo)


Frequency (Hi)


Measurement range

EP600 Battery 100KHz 9 GHz 0.14 - 140 V/m
EP601 Battery 10 KHz 9 GHz 0.5 - 500 V/m
RAD004 Laser 9 KHz 4 GHz 1 - 4000 V/m
RAD010 Laser 9 KHz 12 GHz 1 - 750 V/m

EMC - RF current sensors:

RF9123/RF9145     Clamp-on current probe (measuring)


RF9123 RF9145
Frequency range 10KHz – 500MHz 10KHz – 150MHz
Max primary current DC – 60Hz 200A 350A
@400Hz 200A 350A
@ RF (CW) 40A 42A
Pulse 60A 100A
Nominal Zt (Ohm) 1 – 5 5
Aperture 32mm 32mm

EMC - RF current sensors:

RF9127/RF9142     Clamp-on Current Injection clamps


RF9127 RF9142
Rated Watts 100W 200W
Insertion loss Under 6dB ------ 10MHz – 350MHz
Under 10dB 200KHz – 5MHz 5MHz – 430MHz
Under 15dB 80KHz – 100MHz 2.5MHz – 500MHz
Under 20dB 50KHz – 100MHz 1.5MHz – 500MHz
Frequency range 10KHz – 100MHz 5MHz – 430MHz
Aperture 38mm 38mm


RF Current clamp probe

RF9125   Calibration fixture for the injection clamps

Associated Downloads
Data Sheet – RF9123/RF9145
Data Sheet – RF9217/RF9142