This chart I have for SCXIIc is very simple, list Frequencies and platforms. It has sections for Surface, Air, and mine warfare. Active intercept provides you with the frequency.
So if all of you when you play get an active intercept, turn on show truth and get the platform. Then send me the frequency and the platform I will collect them and when I have enough I will post them for everyone to use. You can usually have a platform pretty well ID before you can in narrow band. Granted several platforms will have the same frequencies, but usually you can know what you are up against by mission briefing and mission goals. I have not heard mine warfare enough, but you can readily tell if it is Surface or air, all the air has high frequencies 10000-14800.
I hope you will help out,
Ron Banks MMCM(SS), USN(SS)
Sub Sailor