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Radio tranmit power boost

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Rmurphy5 View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Rmurphy5 Quote  Post ReplyReply Direct Link To This Post Topic: Radio tranmit power boost
    Posted: 10 Sep 2020 at 6:21pm
Is it possible to boost the transmit power of the 440? My old Collins radio gets ground stations before the 440 can.

Thanks 
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paulr View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote paulr Quote  Post ReplyReply Direct Link To This Post Posted: 11 Sep 2020 at 8:40am
That's a good question-- the Avidyne web site doesn't seem to make mention of the 16W upgrade (which is really just a software unlock) for the IFD 5xx any longer, although I think it used to (along with the unlock for the SAR features). Sarasota sells the IFD 5xx unlock for an eye-popping $4389.00; if you search for "Avidyne 16W VHF Activation" you'll find a few other vendors but all list it as only working with the IFD 5xx series. I'm going to tentatively conclude two things from this:

  1. You can't get the unlock for an IFD 440
  2. Pricing a software unlock at 1/3 the price of the entire unit is absolutely bonkerdoodles. 

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Rmurphy5 View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Rmurphy5 Quote  Post ReplyReply Direct Link To This Post Posted: 15 Sep 2020 at 5:48pm
wow that is a punchy price. I was noticing today that i have an antenna on top and one on the bottom of the plane. Perhaps the 440 com goes to the aerial that is less ideal for long distance. Has anyone managed to boost the power? 
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oskrypuch View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote oskrypuch Quote  Post ReplyReply Direct Link To This Post Posted: 15 Sep 2020 at 7:13pm
Where is the 440 wired to?

You want your "main" radio wired to the belly antenna, and use the secondary radio (top antenna) for ground ops.

If the antennas and wiring is good, you should have no trouble with 10W in normal ops.

* Orest
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