This is coming from Mike at mikeselectricstuff no less, lol: https://www.youtube.com/watch?v=eyA2lWQrxwg&feature=youtu.be...
If this is intriguing, Shahriar from The Signal Path does know how this stuff works and does some amazing teardowns and repairs of six (and likely seven) figure RF equipment.
https://www.youtube.com/channel/UCKxRARSpahF1Mt-2vbPug-g