[TEC] Tweaking Hydrophone and Sonar in 1.3

WernerSobe · 07-12-07, 01:03 AM

Hello

As you have noticed we can use hydrophone and sonar when surfaced. According to fleet type submarine manual (http://www.hnsa.org/doc/fleetsub/sonar/chap1.htm#1A) this is not quite realistic.

The two hydrophones on the bottom of the boat belongs to the WCA System and are only capable for supersonic listening. That means they are more about listening for enemy pinging and/or identifying close targets. It is however possible to catch contacts on ships, but it is limited in range much more then sonic listening, afterall supersonic sound doesnt travel that far. You cannot catch a contact with that at 20000 yards.

The sonic hydrophone is mounted on deck right in front of the conning tower so it is useless on surface.

So realistic would be a capability to catch contacts on surfacec but only at a range of about 3000 yards. It doesnt mean that it is useless at that range. Imagine you have low visibility conditions, it will still save you from running right on a destroyer. And it can help you making an advanced sonar firing solution (see my totorial: http://www.subsim.com/radioroom/showthread.php?t=112591)

So with that in mind i started playing around with Sensors_Sub_US.sim which containes all the setting for the hydrophones as you know. Ive been tweaking the hydrophone earlier back in 1.2 so i thought it wouldnt be much different. However it exposed a little confusing. Changing the values MaxSensorHeigh and MinSensorHeigh didnt changed anything in game. Same with the Range. For testing purposes ive set the range to 10 and min and max height to something way below the surface. That should have pretty much disabled the entire sonar and hydrophone. Well it did not, its was not affected at all, just one thing changed. The preciserange (that i also changed for testing) seemed to have applied for sonar. Setting it to zero made my sonar very accurate. It showed real range there was no deviance as usual. That shows that i have changed the settings for right device in the right file. But a question appears, why the other values (max range and heigh) did not apply?

This is where im stuck now

Offsets:

Item1
MaxRange [1D7F] +15000
MinSensorHeight [1DBB] -500
MaxSensorHeight [1DD3] -1

Item2
MaxRange [1F7C] +20000
MinSensorHeight [1FB8] -500
MaxSensorHeight [1FD0] 0

Item3
MaxRange [2179] +5000
MinSensorHeight [21B5] -500
MaxSensorHeight [21CD] -6

Item4
MaxRange [2376] +2000
MinSensorHeight [23B2] -500
MaxSensorHeight [23CA] -1

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07-12-07, 01:03 AM	#1
WernerSobe Commodore Join Date: Jul 2006 Posts: 625 Downloads: 5 Uploads: 0	[TEC] Tweaking Hydrophone and Sonar in 1.3 Hello As you have noticed we can use hydrophone and sonar when surfaced. According to fleet type submarine manual (http://www.hnsa.org/doc/fleetsub/sonar/chap1.htm#1A) this is not quite realistic. The two hydrophones on the bottom of the boat belongs to the WCA System and are only capable for supersonic listening. That means they are more about listening for enemy pinging and/or identifying close targets. It is however possible to catch contacts on ships, but it is limited in range much more then sonic listening, afterall supersonic sound doesnt travel that far. You cannot catch a contact with that at 20000 yards. The sonic hydrophone is mounted on deck right in front of the conning tower so it is useless on surface. So realistic would be a capability to catch contacts on surfacec but only at a range of about 3000 yards. It doesnt mean that it is useless at that range. Imagine you have low visibility conditions, it will still save you from running right on a destroyer. And it can help you making an advanced sonar firing solution (see my totorial: http://www.subsim.com/radioroom/showthread.php?t=112591) So with that in mind i started playing around with Sensors_Sub_US.sim which containes all the setting for the hydrophones as you know. Ive been tweaking the hydrophone earlier back in 1.2 so i thought it wouldnt be much different. However it exposed a little confusing. Changing the values MaxSensorHeigh and MinSensorHeigh didnt changed anything in game. Same with the Range. For testing purposes ive set the range to 10 and min and max height to something way below the surface. That should have pretty much disabled the entire sonar and hydrophone. Well it did not, its was not affected at all, just one thing changed. The preciserange (that i also changed for testing) seemed to have applied for sonar. Setting it to zero made my sonar very accurate. It showed real range there was no deviance as usual. That shows that i have changed the settings for right device in the right file. But a question appears, why the other values (max range and heigh) did not apply? This is where im stuck now Offsets: Item1 MaxRange [1D7F] +15000 MinSensorHeight [1DBB] -500 MaxSensorHeight [1DD3] -1 Item2 MaxRange [1F7C] +20000 MinSensorHeight [1FB8] -500 MaxSensorHeight [1FD0] 0 Item3 MaxRange [2179] +5000 MinSensorHeight [21B5] -500 MaxSensorHeight [21CD] -6 Item4 MaxRange [2376] +2000 MinSensorHeight [23B2] -500 MaxSensorHeight [23CA] -1 Last edited by WernerSobe; 07-12-07 at 03:27 AM.