[TEC] - Solved !!!! Lost Radar Contacts When Sub Heading South (90-270)

[shad43]

OK...haha, Im completely lost here...sd picked up air and surface contacts in 1.1
sd dont work at all in 1.2?
(I've jsut started a new career and haven't played into 1.2 very far.)
there are a bunch of files floating around here which one do we want?
the latest from redwine? or should i just get the one that goes back to v1.1?

I iz jus a dum rednck an I cornfuzed!

At this point all I want is my basic sd functionality back, I dont care if it picks up surface contacts.

Anyways great work guys, Im sure you all will hash this all out at some point.

[Jace11]

Hehe got it, my SD will now only pick up air contacts... whoopee!!!

More later... testing needed - was a simple fix though....

I had tested this change before, but must have picked a sub with SJ also so I thought my SD was picking up surface contact, now I tried it on a sub with only SD in my little test mission and neither the Yamato or tug are detected but the planes are!!!

[Redwine]

Originally Posted by Mraah

No offense taken . Ref's original tweakfile for use with v1.1 gave specific hex addresses that matched the search we are doing.

I was refering to V1.2... the cnages we done seems to works as if the axis was rotated 90 degrees.

Originally Posted by Mraah

By the way, when you set MinHeight = -2500 were you able to detect aircraft while you were sumberged at periscope depth?

Update : Nevermind, I was thinking MinSensorHeight.

It seems to works from nose to stern instead up to down.... posibly for the reasons i explained in the previous page.

In the SH III sonars, zero is UP..... then max min height is moving up/down in the axis 0/180

But in this file, the radar has zero at nose, if the max min height is moving in the axis 0/180..... then it is movin nose/stern instead up/down.

If the tweak file is correct adressed, so sorry to propose the posibility... no ofense please , is only a posibility, and you confirm is not posible, then...

The next posibility is....

May be the Tem didnt change the name for this parameter, and when we think we are touching vertical, really we are touching horizontal...

Just a theory, it can explains why i reover the contacts when i increase the negative numbers

[Redwine]

Originally Posted by shad43

there are a bunch of files floating around here which one do we want?
the latest from redwine? or should i just get the one that goes back to v1.1?

Well tht's your choice, but the file i posted into the previous page is made over the V1.2 file... may be better to ensure no problems at some campaign moment when upgrade equipment or some thing like that.

Originally Posted by shad43

I iz jus a dum rednck an I cornfuzed!

Me too !!! :rotfl:stay tunning here and helping please.
With job, effort and time, we will solve it sure...

Originally Posted by shad43

At this point all I want is my basic sd functionality back, I dont care if it picks up surface contacts.

Just download the file i posted in the previous page made on v1.2 or back to V1.1 file....

[Redwine]

Originally Posted by Jace11

Hehe got it, my SD will now only pick up air contacts... whoopee!!!

More later... testing needed - was a simple fix though....

I had tested this change before, but must have picked a sub with SJ also so I thought my SD was picking up surface contact, now I tried it on a sub with only SD in my little test mission and neither the Yamato or tug are detected but the planes are!!!

The important... i think so, is you are detecting the planes now with the correct V1.2 version file !

[Jace11]

Here it is...

1.2 + 90/270 fix +working SD fix + SD detects only planes

http://www.speedyshare.com/505199404.html

I recommend testing this new file in the "edit" mission I posted on the previous page using a Porpoise from 1945 which lacks the SJ radar. You're first hint of a surface contact should be when you spot Yamato steaming at you at 25 kts from bearing 313. Planes are from 0, 180, 270, 90 degrees in the mission and all are set at 500m altitude, the one from 270 arrives a bit late I noticed.

The fix for SD was simple...

Elevation!!!! Stopped it dipping below horizon while keeping the 90/270 fix for a full 360 sweep.

WARNING!!!! - low flying aircraft may not be detected. I have tested 100m and 50m and they can approach the SD undetected. 500m - the default altitiude for planes in the game - is detected however..

This variation with altitude may add to the realism as US subs with SD could not not detect very low flying planes... so don't be over-reliant on your new "fully functional" SD set..

[akdavis]

Originally Posted by Jace11

Here it is...

1.2 + 90/270 fix +working SD fix + SD detects only planes

http://www.speedyshare.com/505199404.html

I recommend testing this new file in the "edit" mission I posted on the previous page using a Porpoise from 1945 which lacks the SJ radar. You're first hint of a surface contact should be when you spot Yamato steaming at you at 25 kts from bearing 313. Planes are from 0, 180, 270, 90 degrees in the mission and all are set at 500m altitude, the one from 270 arrives a bit late I noticed.

The fix for SD was simple...

Elevation!!!! Stopped it dipping below horizon while keeping the 90/270 fix for a full 360 sweep.

WARNING!!!! - low flying aircraft may not be detected. I have tested 100m and 50m and they can approach the SD undetected. 500m - the default altitiude for planes in the game - is detected however..

This variation with altitude may add to the realism as US subs with SD could not not detect very low flying planes... so don't be over-reliant on your new "fully functional" SD set..

Sounds like a near perfect solution for the time being. Now we just need to get rid of the the bearing information!

So, with the fix in place, is there any practical difference between SD early and SD late. I know you tested with a '45 Porpoise, but I assume this has SD late. Have you tested SD early?

p.s. - Remind us where the file belongs. Thanks.

[Jace11]

not yet.. just late so far. differences in the sim file between early and late are range and surface area of target - with the later version having a longer range and able to detect smaller targets.. I need to test early I guess...

Will do that now..

BTW:

Install the file to...

C:\Program Files\Ubisoft\Silent Hunter 4 Wolves of the Pacific\Data\Library\USSubParts

[Jace11]

Early is fine too..

Smaller planes like the zero are detected but at a shorter range than the large patrolplanes/bombers just as before.

[Redwine]

Originally Posted by Jace11

Here it is...

1.2 + 90/270 fix +working SD fix + SD detects only planes

http://www.speedyshare.com/505199404.html

I recommend testing this new file in the "edit" mission I posted on the previous page using a Porpoise from 1945 which lacks the SJ radar. You're first hint of a surface contact should be when you spot Yamato steaming at you at 25 kts from bearing 313. Planes are from 0, 180, 270, 90 degrees in the mission and all are set at 500m altitude, the one from 270 arrives a bit late I noticed.

The fix for SD was simple...

Elevation!!!! Stopped it dipping below horizon while keeping the 90/270 fix for a full 360 sweep.

WARNING!!!! - low flying aircraft may not be detected. I have tested 100m and 50m and they can approach the SD undetected. 500m - the default altitiude for planes in the game - is detected however..

This variation with altitude may add to the realism as US subs with SD could not not detect very low flying planes... so don't be over-reliant on your new "fully functional" SD set..

Incredible !!

Job and effort always brings fruits !

[Redwine]

Originally Posted by Jace11

Here it is...

1.2 + 90/270 fix +working SD fix + SD detects only planes

http://www.speedyshare.com/505199404.html

I recommend testing this new file in the "edit" mission I posted on the previous page using a Porpoise from 1945 which lacks the SJ radar. You're first hint of a surface contact should be when you spot Yamato steaming at you at 25 kts from bearing 313. Planes are from 0, 180, 270, 90 degrees in the mission and all are set at 500m altitude, the one from 270 arrives a bit late I noticed.

The fix for SD was simple...

Elevation!!!! Stopped it dipping below horizon while keeping the 90/270 fix for a full 360 sweep.

WARNING!!!! - low flying aircraft may not be detected. I have tested 100m and 50m and they can approach the SD undetected. 500m - the default altitiude for planes in the game - is detected however..

This variation with altitude may add to the realism as US subs with SD could not not detect very low flying planes... so don't be over-reliant on your new "fully functional" SD set..

I still catching the ships contacts with this file

Into map and into SD PPI....

Why ?

Plus "one search sweep" seems to not works...

[Jace11]

Yes I just noticed that in rough seas I am picking up ship contacts. In my test mission the sea was flat. Maybe the pitching of the submarine in a rough sea alters the elevation of the sensor..

So in flat seas I get only planes, and in rough seas I get both.

[Redwine]

Originally Posted by Jace11

Yes I just noticed that in rough seas I am picking up ship contacts. In my test mission the sea was flat. Maybe the pitching of the submarine in a rough sea alters the elevation of the sensor..

So in flat seas I get only planes, and in rough seas I get both.

Let me see... it may be because the antena has no giro stabilization modellated, may be in real life those old Sd antenas had not ?

The antena change its angles with the sub pitch up and down, but it must be covered by the minimun height.... wich seems to not works, if not, even when the sub pitch up or down, nothing under the minimun height must to be detected.

Any way, in calm seas i catch surface contacts....

[Ducimus]

I dunno if it well help, but i figured id mention my observations on the min height.

It's. REALLY, and i do mean, REALLY sensitive.

In testing, while i dont rember the exact figures, i think something like 8.4 produced sparatic contacts and 8.5 it ceased to work. It may have acutally been a smaller figure.

I seriously had this measurment down to tens of thousands of a fraction. For example 8.3535 or even 8.2525. I honestly gave up on fine tuning it because the measurment was so fractionally small, and yet it did seem to make a difference. Which i thought was really odd.

My best guess as to this behavior, the only thing that makes sense, is if the bottom of the radars geometic beam is not level with the horizon, but at a slight incline. An incline of just a couple degrees can make a HUGE difference when your talking a range of 40KM. My thought was if the geometric beam is inclined, then the min height is establishing itself off of that incline. Again, at 40KM out, that min height could be really far up in altitude.

heres what i mean: (not to scale)


Also note that the radar sensor, is probably NOT in the same location on every sub. Assuuming the game takes this into account. If it does It could be X meters high on one sub, and be X+1 meters high on another. If this is the case I do not think there will be a universal fix for all subs.

Naturally, zeroing out the MinSensorHeight didn't yield any positive results that i could tell. Is there another variable at work here that is not represented in the tweak files?

As always, correct me if im wrong. I dont want to mislead anyone if i have it all messed up in my perception of it.

[Jace11]

I replaced the sensors file with the original bugged 1.2 version that came straight from the patch. The single sweep button didnt work then either... Is it definatly working after 1.2 with no tweaks in the sensors file???

Could try changing SD elevation from Min1 Max179 to Min2 max 178