Hi: I have been studying sonobuoys since 2011 where my focus was on the buoy itself.
...Sonobuoy.shtml
.../CRT- 1BSonobuoy.html
I'm now looking at how the data was displayed and have discovered the AQA-5 plotter.
,,,/ SSQ53ASonobuoy.html#Displays
I'm trying to learn details on the AQA-5 such as how it did the frequency spectrum, patents, plotting by stylus or a fixed array of heating elements &Etc.
Have Fun,
Brooke Clarke
PRC68 dot com

Comment:
Brooke Clarke may be contacted by email at: brooke@pacific.net(Admin)