Introduction:
The FESP 5139 is a radiating loop antenna manufactured by Schwarzbeck (Germany) and distributed by EUTTEST. It is designed to generate standardized magnetic field strengths in the frequency range DC-26 MHz, with the main application being the magnetic field immunity testing required by IEC 61000-4-39.
Relationship between magnetic field strength and distance:
Based on the current source principle, this radiating loop transmitting antenna generates a magnetic field of up to 360 A/m in a short period of time. The strength of the generated magnetic field is proportional to the coil current. The use of our 50 mm accessory allows the EMC tester to precisely position and space the coil and EUT surfaces 50 mm apart. Using this accessory allows the highest field strength levels to be achieved and allows for greater test repeatability, if other spacing distances are required, please contact us for more information and we will help you to provide some scaling between the coil current and the magnetic field strength (e.g. 1 A coil current = 20 A/m field strength).

Magnetic field strength curve at 1A current input
Technical parameters:
“Reminder: swipe tables left and right”EUTTEST is an official authorized distributor of SCHWARZBECK, whose full official name is: SCHWARZBECK MESS - ELEKTRONIK OHG
Ltd. is authorized by schwarzbeck to sell all products in China and provide technical service for the products sold.

Schwarzbeck Product List Schwarzbeck
ETS 6512 ETS-Lindgren
FESP 5133-F Schwarzbeck
HFRAE 5163 Schwarzbeck
Schwarzbeck Passive Magnetic Field Loop Antenna Schwarzbeck
FESP 5134-40 Schwarzbeck
ETS 6509 ETS-Lindgren