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Approach Frequency shows XXX.XX IFN and XXX>XX INN


Daniel Mckee
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Daniel Mckee
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On the map for FSTramp the approach to NFFN Nadi Int'l Fiji Rwy 02 shows two freq. 109.90 INN and 111.90 IFN. Can someone enlighten me as to what INN and IFN means please and when we would use either freq? NFFN used as an example.

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Andreas Fuchs
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The real world frequency for ILS 02 at NFFN is 111.90 with the identifier IFN, localizer course 025 degrees. The other ILS-station in your scenery may be outdated.

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Daniel Mckee
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Thankyou Andreas, do you also know what those initials IFN and INN mean please?

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Robert Shearman Jr
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111.90 with the identifier IFN, localizer course 025 degrees.

I take it that it's just the station identifier for that particular ILS signal.

Cheers,
-R.

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Andreas Fuchs
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As Rob wrote correctly, each navigation radio station (ILS, VOR, NDB) comes along with a name, an identifier (one to four letters from A to Z) and a frequency. The correct identifier will ensure that you are receiving the intended station and not another one from another airport nearby that may have the same frequency.

 

When you are in range of the station AND have tuned in its frequency you will be able to listen to the morse code of its identifier. That's why you have "NAV1" or "VOR1" (and others) on your plane's audio panel. Glas cockpits will show you the identifier on the primary flight display and/or the navigation display.

 

https://www.vatsim.net/pilot-resource-centre/ifr-specific-lessons/ifr-navigational-aids

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Daniel Mckee
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Excellent explanation, much appreciated. Cheers Dan

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