I found a document of an interview of engineers and pilots talking about early aircraft radars. It might have been posted here before, I’m not sure.
The interview is in Swedish. Starts on page 45. [ame=https://www.diva-portal.org/smash/get/diva2:127835/FULLTEXT01.pdf]Link here[/ame]
I found a part where they talk about the AJ 37’s radar, the PS-37/A. It’s not the one we’re getting, but it’s very close. We’ll get the PS-371/A, the same one as on the SH 37, the sea reconnaissance version of the Viggen.
“It wasn’t really an a2a radar, what we used was the mapping mode (swe: kartritningsmoden) to create a picture of the air situation. You really couldn’t do more than that, which resulted in a pretty heavy workload of the pilot. Fascinating enough it gave really good range measurements, even against air targets.” : Pilot, Leif Åström
“The Achilles heel was that it still was an analog radar, and was dependent on the pilots skill to counter interference. It took a lot of training to learn how to manage all the different filters to counter different countermeasures.” : Pilot, Leif Åström
“The focus, as we experienced it, was that the radar could handle both ground and air targets. Then it became more of an attack radar that would search and measure (range) ground targets and would have a secondary function against air targets.” : electrical engineer, Jörgen Nilsson
I'm sure there're more interesting information in there about other radars and aircraft if you have the energy/ will to read though it all.