The HDRF-3690 from RF Electronics is a RF Shielded Test Enclosure with Frequency 20 MHz to 12 GHz, Isolation/Insulation 90 to 130 dB, Interior Depth 37 Inches, Interior Height 35 Inches, Interior Width 40.9 Inches. Tags: Stand Alone. More details for HDRF-3690 can be seen below.