How did the german Lichtenstein SN2 Radar work ?

The Funkgerät 220 known as Lichtenstein SN2 was a german radar device of the second world war.
it was used on twin engine nightfighters to detect and hunt down enemy bombers at night.
how did the Lichtenstein SN2 work? This and some other questions are answered in this video.

a video from an complete and working example of the FuG 220 SN2 :
   • FuG 220 Lichtenstein SN-2 - Nemesis o...  

00:00 Introduction
01:39 History
03:05 technical data
03:44 Components
04:10 Transmitter
04:29 Radiowave
05:59 Receiver
06:20 T/R
06:51 Antenna
09:12 Display
09:34 CRT
10:53 Manual switch
11:25 Motor switch
12:10 SN2 in action
17:03 reading the display
20:19 Ending


all animations were made by me (mostly in blender),
animations of flying planes were recorded in the f2p online multiplayer game WarThunder


Lichtenstein Radars PDF:
https://www.cdvandt.org/Lichtenstein%...

German Radars PDF:
https://www.cdvandt.org/German%20airb...


For more interesting papers:
https://www.cdvandt.org

FuG220 Manual(in german):
https://www.cdvandt.org/D-Luft-T-4112...


Pictures:
https://www.cdvandt.org/Lichtenstein%...
https://www.cdvandt.org/German%20airb...
https://acesflyinghigh.wordpress.com/...
https://www.asisbiz.com/il2/Bf-110/NJ...
https://de.wikipedia.org/wiki/C._Lore...
https://www.radartutorial.eu/19.karte...