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Preselector shielded case

If the HiQSDR Preselector Module is completed, you should solder it in a shielding case with Euro-Card Size (102x162mm, 50mm height)
This is a standard EU tinplate case aviable from German supplier Otto Schubert Gehaeuse No. 11a or similar manufacturers.

The Filter modules are relative unsensitive to touchings or metallic shielding walls. If you want, you can add shielding walls between the filter modules. At the preselector pcb, ground traces are available for connect shielding walls.

Only on the top side is a cover required.
On the bottom side the heat spreader from the MPPA must be precisely mounted on a heat sink.

Preselector with shield case and MPPA amplifier