Passive attenuator

thingiverse

This is a customized enclosure designed specifically for a resistive matching attenuator. Simply insert two BNC connectors through the box's holes and connect them with three resistors. Numerous online calculators offer the required resistor values to achieve precise attenuation and impedance levels. To ensure effective shielding, consider using a metal sheet as a template to draw an outline on copper stock. This copper can then be folded inside the box for added protection. The three resistors can be soldered together in a Pi-attenuator configuration, although this step is entirely optional. Finally, attach the L-shaped lid securely to the enclosure using adhesive.