Sign in to follow this  
vadriver

Arrival ATIS ......

Recommended Posts

Team

There are many previous topics about issues with the titled, mostly about inaccuracies / differences from the sims's and / or the weather engine.

Solutions suggested (apart from a "fix") include re-enable of Vox to "update" the weather "correctly".

& yes I have been chasing the "issue" trying to understand if there's a "workaround" ..... but to no avail (apart from the disable / enable just before TOD / STAR transition & an expected arrival clearance).

However, on my most recent I stumbled on a curious coincidence if that's the best expression.

On the flight KSLC to KSFO, departure ATIS was spot on (a 10kt southeasterly) ... & then approaching the STAR (no re-enable), received an arrival clearance the opposite to what I expected (an arrival to the 19's rather than a 28's landing). I checked ASP4's destination weather to be that westerly wind expected from the TAF but also looked at the current weather at the departure to read it had been updated though was still similar to the time of departure (slight wind / altimeter / temp change).

Shortly after, I checked the VOX ATIS (the KSFO ATIS freq / on comm 2 at about 40nm from SFO) & would you believe it was calling the current departure's weather, not the destination's & thus it seems why the clearance was not to the 28's.

A fatal error soon thereafter occurred ... and after a re-enable, correct weather was received & vectors to 28's received.

So for now, I'll keep an eye on this "coincidence" ....... the weather does update but it is jammed on the departure !!

Any similar experiences / observations would be interesting to hear.

Share this post


Link to post
Share on other sites
Help AVSIM continue to serve you!
Please donate today!

The handling of METAR data in P3d4 can be quite confusing and the answer to your question is probably only known to Tegwyn West, the developer of VOXATC. But let me babble on a bit on what I remember reading about weather in VOXATC. As I recall, VOXATC 7 does not read the ASP4 weather snapshot file, usually located at:

C:\Users\<USERNAME>)\AppData\Roaming\HiFi\AS_P3Dv4\Weather\current wx_snapshot.txt

That means it either uses either SimConnect or FSUIPC (since VOXATC definitely does not use the P3d4 PDK) to read the weather from the sim (which is generated by ASP4) and again as I recall, it uses FSUIPC to do so. It is possible to both log the FSUIPC weather data and to display one variable in the sim's title bar. I display barometric pressure (offset=0EC6), but in the past, I've displayed other variables just to see what was happening at the aircraft position. There are a few configuration variables contained in FSUIPC5.ini that impact how FSUIPC handles weather data, but this topic is best left to the FSUIPC manual to explain. In any case, I've noticed some small deviations between what ASP4 says the weather is and what VOXATC and FSUIPC say the weather is. I have no idea why this is true, but one way of cutting down on this possibility is to download ASP4 weather at a longer interval. Another way is to check the ASP4 option "Force ATC wind lock". A third possibility is to check the ASP4 option "Prevent downloads on approach".

Edited by jabloomf1230

Share this post


Link to post
Share on other sites
13 hours ago, vadriver said:

 

A fatal error soon thereafter occurred ... and after a re-enable, correct weather was received & vectors to 28's received.

This suggests another possible “fix” when receiving weather inconsistencies. Just reboot VoxATC. Checking with ATIS outside of controlled airspace (as one would do in real life) would allow plenty of time for this. 

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
Sign in to follow this