[NO BUG] TNC Update via LINK4 to CV

[Karon]

This may either be a bug or a mis-use of a feature. Simply put, I'm trying to update the aircraft position by means of the DL to the carrier. Everything seems to be working, I have the TCN Δ but when I press Fix Enable, the positions of CV and F-14 change almost randomly.

 

 

This would be a great tool to update the INS at sea so I hope it's just a bug and not something that simply cannot be done.

 

 

As usual, I can record a video to show the behaviour if you want.

Edited August 14, 2019 by IronMike

[viper2097]

It seems you are messing up something.

You can either do a NavFix with a Tacan station (possible, but the Stennis may not be the righ t thing for that), or you can do a NavFix over Datalink with an correspondening Waypoint.

 

maybe you can tell us what you want to do?

http://www.heatblur.se/F-14Manual/general.html#navigation-fix-update

[Karon]

I not messing up, I know what I'm doing: I'm trying to use something in-between two updates methods to both increase the precision and the speed of the update (so, I'm mixing up :D ). The real question is what I specified in my very first sentence: is this a bug or a misuse of a feature?

 

 

If it's a bug, great, we have a powerful tool as soon as it is fixed. If it's not meant to be used that way, we can make it work by adding a step or two. Unfortunately we lose precision and speed but hey, TCN Update is quite unprecise anyway at range.

[lucky-hendrix]

I don't understand what you try to do .

Either you do a tacan update, but then you can't do it with a moving stennis.

 

Or you do a DL update, bit I believe you can only do this with a friendly F14 in formation with you

 

Sent from my VTR-L09 using Tapatalk

[Karon]

I don't get what's hard to understand, actually.

 

 

LINK4A shows the CV on the TID as you know and you can hook that point as well. I'd like to use it as reference point for the TCN update since it's the source of the TCN signal as well. This would solve the issue of the moving WP since the CV's position is updated on the TID, making the TCN update both precise (mv factor aside) and fast to operate.

If that works, it's two birds with one stone, although I'm afraid it's not meant for that.

[IronMike]

I will check, but I am afraid it isn't. I think you can do either or only.

[Karon]

No rush mate, but thanks for checking :)

 

 

EDIT: now that I think about it, during my tests, the datalink HB symbol jumped around for a second or two after pressing Fix Enable and sometimes changes position after each Fix. This doesn't happen has often with manually created WPs.

Not sure if it's related of it's simply the system that is taking a bit of time to calculate the position of the DL-HB.

Edited August 16, 2019 by Karon

[viper2097]

Ohhh, now I understand what you try to do...

Interesting idea, but I guess, it would be nothing better then a TCN navfix.

You maxbe only don't have the work to enter a WP.

[Karon]

In the middle of the sea there aren't many TCN stations anyway. I made it work anyway but it's not as precise as it would be.

 

 

If this thing works, we could do a Vis Fix as well by using that WP as reference.