QuiGon

The upcoming DCS update will include a big overhaul of INS/GPS for the F-16: https://www.digitalcombatsimulator.com/en/news/newsletters/ac7733b5517ca577c5a11bddb0a605a1/

Should you still encounter this issue after the update, please let us know!

If the warning light lights up just switch to the other category.

There is some discussion on what loadout qualifies for CAT 1 (centerline tank? empty wing tanks?) and if the current implementation is accurate to real life, but to keep it simple, I would just recommend to do whatever the warning light says.

1) If GPS is available (meaning mission date is after 1994 and you fly in the same coalition as the USA) then the INS gets never misaligned as it is constantly corrected by GPS
2) No
3) IFA is a bit of an emergency procedure to re-align a failed INS mid-flight which is extremely rarely used IRL as it only offers very poor alignment quality. In DCS there is not really any use for this ever.

It should have freezing issues, as the 13900 is one of the CPUs that is affected by this issue:
 

You're affected by the following issue (I don't think tusler's issue is the same) :
Try the workaround described there.

Indeed, see here for more info:
 

Indeed, see here for more info:
 

When hosting a server you can deactivate both options here:

Missions with a mission date prior to 1994 will not have GPS. In the F-16 you can currently check if GPS is available on the FIX page of the DED (as the actual GPS page isn't implemented yet):


You can also just disable the GPS receiver on the F-16 by setting the GPS switch to OFF on the system panel on the right side.

Without GPS, the INS will not be able to automatically update its position and will start to drift over time (you will notice waypoints aren't exactly where they are supposed to be anymore), requiring manual nav fixes in order to keep the INS accurate.

Have you tried turning Motion Blur off?

Of course! The respective binding is named "Landing Gear Warning Silence".

Yes, that's possible in the mission editor on the special tab of each aircraft.

Aside from Iglas and INS simulation the biggest difference between BS2 and BS3 is the new defense system and missile warner on the BS3.

I concur, it sounds like you release the parking break while the INS is still aligning. This will abort the aligning procedure.

To do what exactly? Changing laser codes on the bombs? As you said yourself, there is the non-realistic option to do that on the DSMS inventory page.

You aborted too early. The first cue is the pul-up cue, not the release cue. Just keep flying straight and level and keep the pickle button pressed. A second cue will appear on the HUD and the bomb will drop eventually.

Make sure the TGP is ready to use before entering the laser code. I think entering the laser code does not work if the TGP is still off or still booting up.
 
If the file is too large you will have to use a third party file hoster. Or create a new, shorter track file.

Thanks ED!

Patience
 
The keybindings are called as follows:
Select Station Next
Select Station Prev

This button has been implemented a few months ago. You can find it in the "adjust controls" menu on the bottom right. It's called "Rescan Devices". Make sure you have your TIR plugged in and tracking your TIR clip (green lights) when you press the button.
 
This button made my DCS life so much more comfortable!

China Hat Aft long slaves the TGP to the current steerpoint. This is correct and is also what the manual says (page 93):