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Originally Posted by jojotcb10
First using the narrowband sonar I believe (the one used to classify a contact using the frequencies) how do I find out more of the frequencies? Usually when I pick up a contact that I know is a sub I only see the first 2 frequencies and a 3rd never seems to show up. I usually guess its an akula or victor and send off a torpedo and will still hit a decent amount of time but I would like to know for sure what I am shooting at.
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The towed array, hull array and bow array each have there frequency ranges that they are most sensitive too. Iirc, TA is for low frequencies upto 400 Hz, Hull array between 400 and 800 Hz, Bow between 800 and 1200 Hz. My memory is vague on the exact boundaries, but it is in the general ballpark. If you cannot find the higher frequencies on the TA then you need to try to detect the same contact (same bearing give or take a few degrees) with the Hull or Bow. But you may not be close enough to get a strong enough signal on them. Or you make to much noise yourself. If the first, then you'll have to make do with not knowing exactly what it is and develop a TMA solution none the less with what you got. In the mean time you can close the distance to get a better signal.
Also know that your monitor or graphicscard brightness and gamma settings may prevent you from actually seeing the line. In the dangerous.ini file should be a line with which you can alter the ingame gamma setting. It helps to make the very dark lines stand out, but it does make the whole screen look horrible.
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... Also using that sonor there are obviously the wavey lines that you can scan thru looking for contacts but then there is that one section that dips down and is completely flat for like 30 or 40 degrees. Is that a blind spot or something? I can never pick up any contacts in that area? Sometimes a sub is cruising along that I am tracking and he seems to go into that flat area and I cant really track him anymore. I hope my explanation makes sense. I just cant figure out what that flat area is and what to do if a contact goes into that area.
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Your chosen sensor is deaf as a doornail in that section. It's known as the 'baffles' as banryu79 explained. Either you turn to get the contact out of it (with TA it might take a long while since it is external and drags on a wire behind the sub), or you try to get the signal with a different sensor array that does not have a deafness area there. Bow sonar has baffles on your aft. Towed array has baffles on the bow. Hull array has baffles on both bow and aft.