Chain Home was incredibly important, but airborne radar had a massive effect, especially when the magnetron allowed powerful airborne radars which meant the night fighters could track bombers in the dark or cloud, which stopped the night bombing raids that followed the Blitz. The whole development was remarkably tenuous, documented in Radar Days by Bowen. It's is a great read.
Chain Home was incredibly important, but airborne radar had a massive effect, especially when the magnetron allowed powerful airborne radars which meant the night fighters could track bombers in the dark or cloud, which stopped the night bombing raids that followed the Blitz. The whole development was remarkably tenuous, documented in Radar Days by Bowen. It's is a great read.