Questions about the anchor station shield

I would like to ask what material should be selected for the shielding cover of the Anchor station and how to design it to have a better shielding effect.
Our current Anchor uses a stainless steel shield. It is found that the shielding effect is not good, and the signal will leak out from the board, resulting in problems in our accuracy.
So I hope those who have experience in this field can provide some valuable suggestions. Thank you very much.

Hi @Jame
Im not sure if I understand well to your problem. What do you want to do?

For RF is well known that any metallic object near antenna affect its radiation pattern. You must avoid any metallic materials around the anchors! So the best to use is plastic material (ABS for example) that will have only minimal impact on RF.

Check Electromagnetic shielding - Wikipedia