I suppose if I want this to work, I will
in fact need to edit the files by hand myself. Not all in one go, that's not possible, but I could do each airport I use before I load up X-Plane - two at a time (departure and destination). I need to do this correctly though, needless to say, so can I just check here first?
Using Houston KIAH as an example. PF3 shows this in 'Tab', and when I open the file PF3_FS9_Freq.dat
KIAH,3,122.95,"G BUSH INTERCONTINENTAL/H"
For Ground, PF3 tunes to 118.57, whereas XP11 uses 121.70 for the ground frequency. For the tower, PF3 tunes to 128.10 (I think - I may have remembered incorrectly for that one?), but XP11 uses 135.15.
The X-Plane frequencies are
in the PF3 list, but not used. I'd be really grateful Dave (or anyone!) if you could just answer a few questions, so that I can amend these properly:
1. How does PF3 select a COM frequency when there are several for the same facility in the PF3_FS9_Freq.dat file? Always the first one listed?
2. Could you just confirm the codes after the ICAO (the numbers) and which facility they represent. So '5' must be ground, I assume?
3. Any other file in PF3 I'd need to edit, or just this one?
I will back up the original file (of course) and then, I suppose I just substitute the XP11 frequency for the PF3 one. So
I could even delete any duplicates (different frequencies for the same facility), so there's no confusion: PF3 only seems to use one of them anyway (the first listed?). Though maybe that's not necessary.
I wonder why there are so many discrepancies between the COM frequencies. Maybe PF3 uses older ones (from the inherited PE2000 - or whatever it was called - database. I haven't yet checked against the real-world frequencies..