Narrowband Sonar Target Designation

Bill Dickson · 06-19-06, 02:29 AM

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.

Sonoboy · 06-19-06, 02:52 AM

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.

sonar732 · 06-19-06, 01:25 PM

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.

Bill Dickson · 06-19-06, 02:05 PM

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.

timmyg00 · 06-19-06, 02:16 PM

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

The latter is how it has to be done.

TG

LuftWolf · 06-19-06, 08:58 PM

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.

06-19-06, 02:29 AM	#1
Bill Dickson Swabbie Join Date: Jun 2006 Posts: 7 Downloads: 0 Uploads: 0	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.

06-19-06, 02:16 PM	#5
timmyg00 中国水兵 Join Date: Jan 2000 Location: The People's Republic of Massachusetts, USA Posts: 282 Downloads: 42 Uploads: 0	Are you trying to mark the NB "spike" instead of individual frequency lines? The latter is how it has to be done. TG __________________ ET1/SS, SSN-760 USSVI Marblehead Base (MA) *Naval Historical Sites - Photo Galleries*

06-19-06, 08:58 PM	#6
LuftWolf Ocean Warrior Join Date: May 2005 Location: Free New York Posts: 3,167 Downloads: 2 Uploads: 0	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. __________________ LW

06-19-06, 02:52 AM	#2
Sonoboy Planesman Join Date: Aug 2005 Location: United States, CA Posts: 195 Downloads: 9 Uploads: 0	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.

06-19-06, 01:25 PM	#3
sonar732 The Old Man Join Date: Jul 2003 Location: Central MO Posts: 1,562 Downloads: 6 Uploads: 0	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.

06-19-06, 02:05 PM	#4
Bill Dickson Swabbie Join Date: Jun 2006 Posts: 7 Downloads: 0 Uploads: 0	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.