Narrowband Sonar Target Designation
 

I can designate targets in broadband, but when I switch to narrowband I cant designate the targets, this hapens both in SC and DW.

is it because of the range 0f the contact and not a strong enough signal.

Thanks for your help.

Usually it is the other way around: being able to mark contacts in NB and not in BB.

Assuming you meant the above, it is probably due to not strong enough of a signal.

How "bright" are your classification lines? I agree that it sounds like your issue is with BB detection rather than NB. Something else that will help us out is what platform you're talking about.

I am Driving the Seawolf or 688I.

The classification lines are faint but the spikes in the towed array NB window are very pronounced but when I try to designate it dosn't.

one other strange thing, well to me, is that although I cant designate in NB the sonar contacts appear with their seirra Nos in the demon display.

Are you trying to mark the NB "spike" instead of individual frequency lines?

The latter is how it has to be done.

TG

Put the bearing cursor on the spike. Then click on a frequency line, THEN hit Mark.

In the narrowband, you are marking an individual frequency along a particular bearing rather than the whole contact.