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                           AeroElectric-List Digest Archive
                                      ---
                     Total Messages Posted Thu 01/19/12: 3
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Today's Message Index:
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     1. 06:07 AM - Re: Re: Electrical Gremlins  (Robert L. Nuckolls, III)
     2. 06:08 AM - Re: Re: Weak and Static on Transmission  (Robert L. Nuckolls, III)
     3. 06:12 AM - Re: Re: Weak and Static on Transmission  (Robert L. Nuckolls, III)
 
 
 
________________________________  Message 1  _____________________________________


Time: 06:07:09 AM PST US
From: "Robert L. Nuckolls, III" <nuckolls.bob@aeroelectric.com>
Subject: Re: AeroElectric-List: Re: Electrical Gremlins



>I've got a few days to go before engine start so I can't address the 
>on-line alternator scenario.
>Re 2 LVW's, I have two alternators. The stby alternator uses a 
>Ford-type regulator, hence the 9005 LVM.

    Understand. Check the calibration of your
    bench test setup for the LV Warning trip
    points. To have both an LR3 and ABMM module
    to be off by the same direction and magnitude
    is curious.

    Both are set by design at 13.0 volts although
    being .5 V higher wouldn't hurt their utility.


   Bob . . . 


________________________________  Message 2  _____________________________________


Time: 06:08:10 AM PST US
From: "Robert L. Nuckolls, III" <nuckolls.bob@aeroelectric.com>
Subject: Re: AeroElectric-List: Re: Weak and Static on Transmission


At 11:30 AM 1/18/2012, you wrote:
>
>Just to make sure the obvious is not overlooked, are you sure that 
>the location of the antenna is surrounded by fiberglass and not 
>RF-opaque carbon fiber?
>IIRC, the Legacy uses a lot of CF in the airframe.

    ???? Hmmm . . . didn't know that about the Legacy
    but I wondered when he made the reference to 'fiberglas'. I
    thought it curious that Lancair would use the carbon
    fiber in the IV and glass in the Legacy.

    Yeah, if the antenna is inside a carbon structure
    it's effectiveness is severely degraded.


   Bob . . . 


________________________________  Message 3  _____________________________________


Time: 06:12:54 AM PST US
From: "Robert L. Nuckolls, III" <nuckolls.bob@aeroelectric.com>
Subject: Re: AeroElectric-List: Re: Weak and Static on Transmission


At 10:18 PM 1/18/2012, you wrote:
>
>I'm surprised no one has brought up the obvious
>of likely P-static. Does the aircraft have any static wicks?

    He didn't mention flying in precip and static
    wicks don't have anything to 'connect' to on
    a glass airplane. If it's a carbon fiber then
    wicks might be useful but my impression was that
    his poor signal reports were at low altitudes
    and probably slowed down for approach to landing
    and in clear weather. P-static wouldn't hurt
    a transmitted signal, only a received signal and
    he didn't mention not being able to hear . . .
    only be heard.

    This is why the differentiation between weak-signal
    static versus poor connection static is important.
    The presence of carbon would support the notion of
    it being the weak-signal variety.


   Bob . . . 


 

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