In SC some one developed a sonar frequency chart that ID almost all sonar signals, and I used that a lot. Does such a chart exist for DW and if so where would I find it.
I used the chart in SC for IDing surface ships and the damm aircraft. God they should be outlawed. Nothing ruins a Submariners day like a Helo or P-3

I know the chart in SC does not match the sonar in DW, I tried that.
Thanks,
Ron Banks MMCM(SS), USN(Ret)