ATC IFR files

[arno 1]

Hi Matthias,As you can see in the piece of code I posted above and will repeat here (which comes from a default file), the altitudes and boundaries are defined in with the XML code. If you have the official data it should not be that hard to get it into this form.[tt][/tt]But I don't know yet how the frequency is linked to this piece of airspace. I guess it is using the name that is provided (AMSTERDAM CTA WEST in this example). I will try to find if I can find the code that assign the frequency somewhere else.And of course the question is still how will this work together with the default airspace files. But I think the only way to learn that is just to try and see :).

[Guest matthias]

Good day Arno,I try to figure out an example:I have the coordinates for Berlin Upper radar.But Berlin upper covers only from FL240 until FL610 (overhead is Houston Controll*G*).The Meanthing is that the Airspace is not Airspace B. It is Airspace C above FL100.(In Flightsimulator 10.000 feet.). Maybe there are changes too. It could be the Problem. I think we talk about the Airspace B and not the Airspace C. For example if you want to change the Center Airspace you should normaly take Airspace C. Because if you are not in Airspace C or A. But keep us informed.Many greetingsMatthias R

[arno 1]

Hi Matthias,As you can see in the XML source you can also define the type of airspace it must be, so if it needs to be C that can be defined ther. So I am sure that it is also possible to define an Upper Area Control center with it.But the same problems I indicated before are still there of course :). I hope I can do some tests this evening.

[Guest matthias]

Good evening Arno,I stand bye for further Informations. Another Problem maybe is the Arrival/Departure Frequency

[Guest matthias]

Good evening Arno,I only would like to inform you what I have found out. In the AT9EURW0.BGL you find the Airspaces. In the APXXXX Files you find the Comm Frequencies. I tried something with AFCAD. Take the stock AFCAD File for EDDT. There are the following frequencies.:125.90 ATIS EDDT121.750 Ground TEGEL121.925 Ground TEGEL118.700 Tower TEGEL124.520 Tower TEGEL119.625 Arrival BERLIN121.125 Arrival BERLIN Director132.700 Arrival BERLIN136.100 Arrival BERLIN DIRECTOR119.500 Departure BERLIN120.625 Departure BERLINI inserted a Frequency 120.625 once again but with the Designator TEGEL. Before my changes the ground gave the 119.625=Arrival as Departure Frequency. After my changes He gives the 121.125 as Departure Frequency. On Departure he did not handoff to the Center he hand off to 119.625 *LOL*.But I think anywhere on the Files there should be the connection between Airspace and Frequencys. For example Berlin DIRECTOR normaly only controll Aircrafts shortly before they established on ILS and switch them to the Tower. It is really funny. Surely I can

[arno 1]

I had a futher look at the XML files and it seems only the airspace at lower altitudes is defined in there. There seems to be no upper airspace.I will do some more searching, maybe they are collected in another file for the entire world and not per region. Or maybe the decompiler can not handle that part. I have also seen that the BGLComp SDK only explains how to add frequencies to an airport (like approach, departure, tower). There seems to be no mention of assigning frequencies to other airspaces and centers (which do not belong to a certain airport of course).

[Guest matthias]

Good afternoon Arno,I think it too. But how did Christian his New Zealand Airspace ? Maybe it is hard coded that he handoff at 10000 feet = FL100 from Approach/Departure to Center. I do not understand the sense to assign a controll Frequency for instance Departure and the Flight Simulator does not use it.*G*. Maybe we can find out more.SincerlyMatthias R

[arno 1]

The scenery Christian made was for Fs2002. In Fs2004 the structure has changed completely and it has moved to the AFD files. So what worked in Fs2002 doesn't really help.

[Guest matthias]

Good evening Arno,You are the specialist.-))). I wonder only that is it so difficult. I do not hope, that microsoft hard coded this. By the way yesterday at one of the APXXXX file I found a line in the XML file. There are the Center frequencies. But no connection to any airspace.it shows likeIn FS Berlin Center has two frequency

[arno 1]

Hi Matthias,This is interesting. I have decompiled all AP* file for the eurw scenery and I have now searched them all for center frequencies, the one you reported is the only one in all those files.So I still think the main frequencies are somewhere else :).

[Guest matthias]

Good evening Arno,the Problem is, you find a lot of *.bgl files in the Folder. But the only one the decompiler take is the APXXXX and ATXXX I think. The decompiler is not able to decompile the other Files.Maybe you will find the Frequencies and Airspaces in the "World" Folder I will have a look.SincerlyMatthias R

[arno 1]

Most of the files that BGLXML can not read are actually mesh files, that contains the roads and that sort of things.I will also try to look in the world (or any other folder).

[G.Franco Corrias 0]

Try to FS9/scenery/EURW/scenery/UTXXXXXX.I have the suspicion that UT stands for Upper Traffic moreover UT files are classified by the same numbers as the AP ones.I opened it by a disassembler but I found a cripted text.

[arno 1]

I think UT are the utility lines (VTP lines), BGLXML can also not read them. Matthias found that the upper airspace structure is in the bvcf.bgl (i hope I remembered the name correct) file in the world scenery folder. When decompiling this file the structure and shape is defined there, but the name and frequency are given as comments in the source and not with some sort of command. So these might still be defined somewhere else.

[G.Franco Corrias 0]

bvcf.bgl covers only the north America where's the rest of the world?