Ship Jamming Question

[itsthatguy]

I've noticed that no other ground mapping radar in the game seems to be effected by jamming in the way that the Viggen is. Even the Viggen itself only "sees" jamming from ships, and not any other source.

 

This leads me to the question of how it's implemented in the Viggen.

Is it:

1) An actual interaction between the ship and the aircraft. Ex: The ship object starts jamming, this information is passed to the aircraft object, which produces the jamming effect on the radar display.

 

OR

 

2) Wholly contained in the aircraft's logic, and not an actual interaction. Ex: The Viggen's code has some rule for when a ship WOULD turn on it's jammer, and when that condition is met, it produces jamming effects on the radar display.

 

If 1) then is there a way to set a ship's jamming behavior in the ME?

Edited May 28 by itsthatguy

[MYSE1234]

IIRC it's the former; It looks at the unit's "IsJamming" flag, and if true it shows the effect. It would however appear that all ships, always have that flag TRUE. 

And I'm pretty sure I've seen jamming from aircraft, or have seen my jamming on their screen.

[Northstar98]

Ships don't have jammers for any other aircraft and there's no option in the mission editor for ECM using, which leads me to suspect #2 is the case.

There also examples of the Viggen being jammed by vessels which IRL do not feature jammers (like the Grisha V).

The Viggen is however also susceptible to jamming from aircraft, which works in the same way it does for anything else.

[Zabuzard]

9 hours ago, Northstar98 said:

which leads me to suspect #2 is the case

It is #1 though.

The Viggen does not decide who is Jamming and who isnt. DCS does. The Viggen reads the "isJamming" flag from units and these ships respond with true for that. So DCS decided that those ships are jamming, consequently the Viggen "triggers the jamming effects" for that unit.

Edited yesterday at 06:57 AM by Zabuzard

[Northstar98]

2 hours ago, Zabuzard said:

It is #1 though.

The Viggen does not decide who is Jamming and who isnt. DCS does. The Viggen reads the "isJamming" flag from units and these ships respond with true for that. So DCS decided that those ships are jamming, consequently the Viggen "triggers the jamming effects" for that unit.

Then:

• Why is there no definition for ship ECM in the .lua files defining them? There is for aircraft, there isn't for ships (see line 36-37 for the B-52H here, look at any naval unit though and no such entry exists).
• Why is this jamming effect only present on the Viggen and nothing else?
• Why aren't there any controls for "ECM using" for ships?
• Why are there ships that IRL don't have jammers, jamming the radar?

Edited yesterday at 09:17 AM by Northstar98
Added link to naval unit .luas

[Zabuzard]

Because its more complex than that.

Either case, not really something you need to worry about. ED and HB will work together to fix whatever problem there is.

[Northstar98]

15 minutes ago, Zabuzard said:

Because its more complex than that.

Okay, in what way?

Because if ships do use the same jamming flag that aircraft do, why aren't they defined as such in their respective .luas (the same way aircraft are), why does no other module account for it - even for very high fidelity radars like the F-4E?

Edited yesterday at 10:53 AM by Northstar98

[Zabuzard]

I understand that you are curious as to how things work under the hood. However, going into those details would go beyond the scope of this thread and likely also touch topics under NDA. Perhaps another time.

For now lets focus on the experience. So if you find a bug or something that seems odd, please continue to report it and it will be fixed eventually

[Northstar98]

1 hour ago, Zabuzard said:

I understand that you are curious as to how things work under the hood. However, going into those details would go beyond the scope of this thread and likely also touch topics under NDA. Perhaps another time.

Okay, that's fair enough. I was just interested because I saw what appeared to me as an inconsistency with in-game behaviour and what's defined in the files I can see and what was being said on the matter.

I did try experimenting with scripting to see if I can tell when the isJamming flag gets set to true - not just for the sake of my curiosity, but it opens up a few mission editing opportunities - like having it influence AI behaviour etc, but was unsuccessful.

1 hour ago, Zabuzard said:

For now lets focus on the experience. So if you find a bug or something that seems odd, please continue to report it and it will be fixed eventually

Will do. Thank you.