3 ms·I’m… not sure if you are joking.by samtho 4y agoI’m… not sure if you are joking.all2 4y agoQuarter inch mesh is pretty cheap at the local hardware big box. It'd be good for attenuation up to 7ish Ghz. I've seriously considered getting a roll and building a cage. There's also emf paint that one could use.tomcam 4y agoJoking sorry