* MPCEE French Bureau -- Monday 17 October 2005 10:05:
> If you select a great number of
> airports/fields and then check out the frequencies that are supposed to be
> the default for that airfield etc, via the tool bar when the browser is
> open, then fly to that field, it is likely that the ATIS frequency is not
> configured for that airfield.

Of course it's not. All predefined frequencies are set for the default
scenery, no matter where you start or fly to. TACAN is always set for the
Nimitz, or better: for what Vivian has temporarily assigned to our Nimitz
We couldn't find the real channel. Maybe you can help out here? :-)



> They certainly do not match up with Atlas in the majority of cases.

That's hard to believe, as Atlas takes its information from the same
source as FlightGear. They certainly show and use the same frequencies.
There may be some that don't agree with the real world, but you did
still not give a single example.  :-P  A lot of airports have multiple
frequencies e.g. for ATIS, and fgfs does AFAIK only listen to one of
them. This may explain your experience. 



> This is why I am looking for a list of frequencies for ADF etc, so as
> to have, at a glance, what I need.

All the frequencies are, of course, on your hard disk already. In
$FG_ROOT/Airports/apt.dat.gz and $FG_ROOT/Navaids/nav.dat.gz
On Unix/Linux/Mac it's quite simple to read them out, for example
with a tiny script like this:

  http://members.aon.at/mfranz/freq  [6 kB]

which says for London:

  $ freq egll
  EGLL - London Heathrow
  ======================
  109.50  DME/GS/LLZ 09R, DME/GS/LLZ 27L
  110.30  DME/GS/LLZ 09L, DME/GS/LLZ 27R
  113.75  ATIS
  115.10  ATIS
  118.50  TWR
  118.70  TWR
  119.72  APP
  120.40  APP
  121.70  GND
  121.85  ATIS
  121.90  GND
  121.97  CLNC DEL
  124.47  TWR
  127.52  APP
  128.07  ATIS
  134.97  APP
  348     Fairoaks NDB ("FOS")    -->     15.6 km/8.4 nm  @  29 (NNE)
  113.60  London VOR-DME ("LON")  -->     2.2 km/1.2 nm  @  156 (SSE)
  115.30  Ockham VOR-DME ("OCK")  -->     18.3 km/9.9 nm  @  358 (N)
  114.50  Koksy VORTAC ("KOK")    -->     220.2 km/118.9 nm  @  280 (W)

Maybe if you install Perl, it would even work under Windows. Or something
similar could be written in another language. You can also unpack these
databases and find the frequencies in the raw list. It's only a bit
tedious then.

m.

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