RF enclosures utilize radiation shielding to reduce electromagnetic transmissions, filtering the range of frequencies emitted via materials like copper which can absorb both radio and magnetic waves. This protects devices from electromagnetic interference (EMI) that could potentially damage equipment or compromise the integrity of a signal’s source. GTEM cells (gigahertz transverse electromagnetic cells) are in long, sideways pyramid-shaped test chambers lined with conductive material. The base of the chamber is lined with radiation absorbent material (RAM) and the side walls act as waveguides. Devices under test are placed between a stripline conductor called the septum. RF enclosures and GTEMs are used in product development and EMC testing, particularly radiated susceptibility testing, and they provide an excellent environment for conducting tests needed for meeting various standards.