This is one of the most solid tl;dr’s for SDR’s (filter and LNA variety) ever!!
Thanks so much.
Going to be able to refer a bunch of people that ask this.
Wish we could put it in a LLM (large language model) for AI to answer this FAQ!
Hope you don’t mind, I did a quick format edit of your post for readability.
Also, where do we get the putty pads (not adhesive foam) from? I feel that all the Pi heatsink kits come with foam, but am not sure what to google/amazon for the putty.