How do use Tacan Yardstick?

[Direwolf]

After this las update/patch/hotfix, when using TACAN Yardstick with a friend, I noticed the DME to him on my HUD sometimes freezes, and I have to turn TACAN OFF, and turn ON again, to get the correct reading. Then, a little bit later, it freezes again, and I have to repeat the procedure. Is this a bug?

[=Panther=]

Make sure yardstick tacan is not between 1-36, and 64-99. The best values is between 37-63. Beyond that, I don't know if any new issues has popped up.

[Direwolf]

Make sure yardstick tacan is not between 1-36, and 64-99. The best values is between 37-63. Beyond that, I don't know if any new issues has popped up.

 

Thanks. I´ll try it! Any explanation about this optimal range?

[Ramsay]

Any explanation about this optimal range?

Probably related to Link-16 data frequencies operating in a similar range to TACAN but I'm not sure how DCS is modelling that.

 

As some have correctly deduced, we also implemented realistic frequencies for A/A TACAN that do not interfere with the datalink.

 

Because the upper antenna filter is fixed, it filters A/A TACAN frequencies on channels 1-36 and 64-99 (X and Y). A/A TACAN channels should be chosen outside of these ranges. The upper filter makes the top antenna unusable for T/R (Air to Ground) TACAN channels 1-29 X and Y, 47X to 63X and 64Y to 92Y.

 

For TACAN channels in these ranges, the bottom antenna is the only antenna for TACAN. [This] causes reduced ranges for DME at channels within the range of the filter when flying directly away from the TACAN station.

 

Per the previous post, we have changed the Link-16 frequency to 1092.5 MHz. As such, TCN channels 68 and 69 both X and Y should be avoided.

Edited March 26, 2019 by Ramsay
Add 4th March Update