Identifying hydrophone sounds

Doolar · 09-28-09, 12:44 PM

had a quick question about the HYDROPHONE . I read a thread once about identifying a type of ship buy the sound it makes as herd through the hydrophone . I can't find this thread . The sounds I herd was like alot of chirping birds . I herd it on a manual scan but my hydrophone man couldn't pick it up . So I'm guessing it was between 18km to 30kms away . It also appeared to be moving fast . My location was AF 77 . Any help in identifying this contact would be appreciated ... thanx

09-28-09, 12:44 PM	#1
Doolar Expert Shipsinker Join Date: Feb 2007 Location: Baltimore,Md./ CA45 Posts: 914 Downloads: 360 Uploads: 0	Identifying hydrophone sounds had a quick question about the HYDROPHONE . I read a thread once about identifying a type of ship buy the sound it makes as herd through the hydrophone . I can't find this thread . The sounds I herd was like alot of chirping birds . I herd it on a manual scan but my hydrophone man couldn't pick it up . So I'm guessing it was between 18km to 30kms away . It also appeared to be moving fast . My location was AF 77 . Any help in identifying this contact would be appreciated ... thanx