The RF-R 50-1 is a passive near-field probe. Due to its medium size diameter (10 mm) it covers less of the magnetic field and is, therefore, less sensitive in comparision to the RF-R 400-1 probe. The RF-R 50-1 probe has a higher resolution than RF-R 400-1. In contrast to the H-field probe RF-R 3-2, the RF-R 400-1 covers more of the magnetic field and is more sensitive. As a result it has a lower resolution.
It has a current attenuating sheath and, is therefore, electrically shielded. It can be connected to a spectrum analyzer or an oscilloscope with a 50 Ω input. The H-field probe does not have an internal terminating resistance of 50 Ω.