For radar, RV Jones' "Most Secret War" has an anecdote where the British raid a German coastal radar site (in France), nab the radar operator and are annoyed to discover that they know almost nothing about German radar. Pre-war Germany is already a fascist dictatorship so "ham" radio operators are enemies of the state because they're outside of your centrally controlled narrative. Whereas pre-war Britain has the usual amount of amateurs with radios. So when war broke out and they're conscripting towns at a time the British would see you're a ham and divert you from infantry training or whatever and make you a radar operator - which means the average British radar operator actually has some idea how radio works but the Germans are obliged to basically just pick a soldier and train him to operate the radar from scratch.
This apparently had significant operational consequences because if you don't know how it works all you can do when there's a fault is order spare parts. So German radar stations would be offline more often and for longer. Although Chain Home's transmitters were wildly more powerful than anything even a rich British amateur might have seen before, not to mention operating on frequencies unachievable with prior technology, the principles were familiar.
That is a fantastic contribution to the conversation. I think I’ve heard or read accounts that, if I’d thought long and hard about, might have led me to understand this, but this is new information to me.
I have seen Most Secret War recommended to me by basically every physical and ebook seller I have an account with, so I guess it’s time to take one of them up on the offer. Thank you!
This apparently had significant operational consequences because if you don't know how it works all you can do when there's a fault is order spare parts. So German radar stations would be offline more often and for longer. Although Chain Home's transmitters were wildly more powerful than anything even a rich British amateur might have seen before, not to mention operating on frequencies unachievable with prior technology, the principles were familiar.