Frequency Range: 30 Hz – 100 kHz

The Model 7605, a radiating loop, and the Model 7606, a sensing loop, are used as part of a system to verify the ability of an EUT to withstand radiating magnetic fields. The Model 7605 is a 20-turn coil of AWG-12 enamel-insulated copper wire and features a  5cm spacing from the top of the loop to the centre-point of the coils as per MIL-STD 462D. The Model 7606 sensing loop is a 4 cm diameter, electrostatically-shielded loop antenna which has 51 turns of 7-strand AWG-41 Litz wire.

The model 7605 is now the recommended antenna for ISO 11452-8 “Road vehicles – Component test methods for electrical disturbances for narrowband radiated electromagnetic energy – Part 8: Immunity magnetic fields.”

The model 7605 produces a magnetic flux density of 9.5×10⁷ pT/A, or 160dB(pT/A), on axis at a distance of 5 cm from its centre.

The model 7606 is used together with the model 7605 to calibrate the model 7605 and the other instrumentation used in the test. A table containing the conversion factors for the model 7606 can be found in the manual.