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Warrenwhis View Drop Down
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    Posted: 30 Aug 2018 at 6:46am
My IFD540 says the FLTA is inhibited. I have no aural callouts.  Oskrypuch suggested I post about an audio connection that I probably need.  Can someone help me with this?
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Gring View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Gring Quote  Post ReplyReply Direct Link To This Post Posted: 30 Aug 2018 at 7:47am
You need to provide some additional information. FLTA is inhibited in certain areas such as the exclusion areas around an airport. It will be inhibited if the GPS signal is lost. You need to have it turned on in the user settings.

Perhaps you can provide some additional information.
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Warrenwhis View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Warrenwhis Quote  Post ReplyReply Direct Link To This Post Posted: 30 Aug 2018 at 9:43am
I have had this unit and flown withit for over 2 yeats.  Never had a call out.  All thesettings for TA and FLTS are turned on
My nav/data, obstacles and terrain are current
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Post Options Post Options   Thanks (0) Thanks(0)   Quote chflyer Quote  Post ReplyReply Direct Link To This Post Posted: 30 Aug 2018 at 1:26pm
That would seem to indicate a wiring problem. Do you get the 500' call-out (is independent of TA/FLTA setting)?
Vince
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Warrenwhis View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Warrenwhis Quote  Post ReplyReply Direct Link To This Post Posted: 30 Aug 2018 at 5:04pm
i have never had a 500 ft callout
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Cruiser Quote  Post ReplyReply Direct Link To This Post Posted: 30 Aug 2018 at 6:11pm
from the install manual..... If the unit being replaced was not a TAWS-enabled device, or if the TAWS Audio output signals were not already connected to the aircraft audio panel(s), then some additional wiring will be required from the IFD5XX/4XX tray to the aircraft audio panel(s) as identified in Section 6.11.1 in order to supply IFD5XX/4XX terrain alerting audio (FLTA functionality) and TOD chime to the headsets.
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Warrenwhis View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Warrenwhis Quote  Post ReplyReply Direct Link To This Post Posted: 31 Aug 2018 at 6:48am
thank you I will takr this info to my avionics shop that did the install
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Post Options Post Options   Thanks (0) Thanks(0)   Quote DavidBunin Quote  Post ReplyReply Direct Link To This Post Posted: 01 Sep 2018 at 6:18am
Last year I had a flight where I was getting repeated FLTA Unavailable warnings while cruising at high altitude (17,500 I think).  It was mentioned that the fault was resolved in the new software, which I have not yet installed.

Whatever caused it must have been spurious in the GPS, because I haven't seen it again.

There was a thread about it here, somewhere.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote rolfe_tessem Quote  Post ReplyReply Direct Link To This Post Posted: 01 Sep 2018 at 9:19am
If you replaced a Garmin 530, 99% of Garmin 530's did not have audio wired (unless they had TAWS, which maybe a few air carrier types did). Your shop needs to connect one wire to enable audio...

Rolfe

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Post Options Post Options   Thanks (0) Thanks(0)   Quote DavidBunin Quote  Post ReplyReply Direct Link To This Post Posted: 02 Sep 2018 at 12:40pm
Technically it is three connections.  There is a twisted wire pair (HI/LO) for audio inside a grounded shield.  But visually, yes it looks like one wire.

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