Does RA SONAR autocrew do NB?

MarkShot · 11-20-20, 01:45 PM

There are many times the boat is in transit. To spend hours at the SONAR NB sweeping for a ghost in the 0-100Hz is really dull.

It it safe to transit and leave the SONAR autocrew is on? I am concerned that they only report BB contact which could throw anywhere from 10-20nmi of detection away.

Thanks.

MarkShot · 11-22-20, 03:30 AM

Someone must know the answer to this!

(I suppose I can back to the MarkShot Acoustic Labs as I already have best human detection results for some trials.)

Thanks.

MarkShot · 11-22-20, 04:40 AM

I tested this. It did it pretty quick, but I think human sweep gives you 10-20% greater range when carefully.

Captain Reyes · 11-22-20, 07:20 AM

As you noticed in most cases an attentive human operator will pick up contacts first. I lately often use Autocrew on time compression, transits, and out of convenience. While doing so it can be still a good idea to sometimes visit the sonar station and do a manual sweep.

FPSchazly · 11-22-20, 09:24 AM

Yes, I agree with Captain Reyes. Definitely do some manual sweeping on narrowband for classification purposes as well if sonar has found contacts. The human will definitely be better at classifying with only partial frequency data than the AI.

MarkShot · 11-22-20, 09:37 AM

I can basically catch a 50Hz line that is only a black shadow against the lit background.

11-20-20, 01:45 PM	#1
MarkShot Ace of the Deep Join Date: Jul 2002 Posts: 1,134 Downloads: 93 Uploads: 0	Does RA SONAR autocrew do NB? There are many times the boat is in transit. To spend hours at the SONAR NB sweeping for a ghost in the 0-100Hz is really dull. It it safe to transit and leave the SONAR autocrew is on? I am concerned that they only report BB contact which could throw anywhere from 10-20nmi of detection away. Thanks. __________________ War games, not wars! --- Only a small few profit from war (that should not stand)!

11-22-20, 03:30 AM	#2
MarkShot Ace of the Deep Join Date: Jul 2002 Posts: 1,134 Downloads: 93 Uploads: 0	Someone must know the answer to this! (I suppose I can back to the MarkShot Acoustic Labs as I already have best human detection results for some trials.) Thanks. __________________ War games, not wars! --- Only a small few profit from war (that should not stand)! Last edited by MarkShot; 11-22-20 at 03:40 AM.

11-22-20, 04:40 AM	#3
MarkShot Ace of the Deep Join Date: Jul 2002 Posts: 1,134 Downloads: 93 Uploads: 0	I tested this. It did it pretty quick, but I think human sweep gives you 10-20% greater range when carefully. __________________ War games, not wars! --- Only a small few profit from war (that should not stand)!

11-22-20, 09:24 AM	#5
FPSchazly Good Hunting! Join Date: Apr 2014 Location: Maryland Posts: 771 Downloads: 15 Uploads: 1	Yes, I agree with Captain Reyes. Definitely do some manual sweeping on narrowband for classification purposes as well if sonar has found contacts. The human will definitely be better at classifying with only partial frequency data than the AI. __________________ Your friendly neighborhood modern submarine YouTuber. My videos: Exclusive Look at Modern Naval Warfare! Dangerous Waters Liu Doctrine (LwAmi Learn to play Dangerous Waters

11-22-20, 09:37 AM	#6
MarkShot Ace of the Deep Join Date: Jul 2002 Posts: 1,134 Downloads: 93 Uploads: 0	I can basically catch a 50Hz line that is only a black shadow against the lit background. __________________ War games, not wars! --- Only a small few profit from war (that should not stand)!

11-22-20, 07:20 AM	#4
Captain Reyes Bosun Join Date: Oct 2020 Posts: 69 Downloads: 19 Uploads: 0	As you noticed in most cases an attentive human operator will pick up contacts first. I lately often use Autocrew on time compression, transits, and out of convenience. While doing so it can be still a good idea to sometimes visit the sonar station and do a manual sweep.