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Nav antenna chice and placement

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weeav8ter(at)grandecom.ne
Guest

Posted: Sun Mar 26, 2006 2:45 pm Post subject: Nav antenna chice and placement

I see from various pictures on the web that several  of you RV10's flying have put, what I think is, the nav antenna  underneath

 the fuselage in the rear. Is this also your ILS  glideslope antenna and if so have you had any difficulty with  reception

 while shooting an ILS? Normally they have them<  I've been told, on the top of the VS because of better reception of  the glideslope. 

  

 Wayne Edgerton # 40336

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Tim(at)MyRV10.com
Guest

Posted: Sun Mar 26, 2006 3:43 pm Post subject: Nav antenna chice and placement

Yes, it's my VOR/LOC/GS antenna.  Works great in all aspects.  I

thought the bottom side location would be better than the top

due to a better view of the station.  Not sure how true that

is.  I thought they were put on top to prevent eye poking.

Not sure though.



Tim Olson - RV-10 N104CD - Flying

do not archive

Wayne Edgerton wrote:

 	  Quote: 	
		   I see from various pictures on the web that several of you RV10's flying 

 have put, what I think is, the nav antenna underneath

 the fuselage in the rear. Is this also your ILS glideslope antenna and 

 if so have you had any difficulty with reception

 while shooting an ILS? Normally they have them< I've been told, on the 

 top of the VS because of better reception of the glideslope. 

  

 Wayne Edgerton # 40336

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johnwcox(at)pacificnw.com
Guest

Posted: Sun Mar 26, 2006 7:12 pm Post subject: Nav antenna chice and placement

Most antenna depend on an effective ground plane.  There are both

horizontal and vertical polarization factors.  On our air carrier fleet,

the vast majority are on the bottom where the signal propagates towards

the transmitter/receiver station.  Exceptions are satellite based on the

top and Elt which is on the top of the empennage, thoughts are that the

aircraft will be upright on transmission.  A few such as glide slope and

radar are in the nose.



John - $00.02

Do not Archive



--

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weeav8ter(at)grandecom.ne
Guest

Posted: Mon Mar 27, 2006 5:59 am Post subject: Nav antenna chice and placement

I was told by someone, who's opinion that I trust,  that the reason the antenna is on the top 

 is because when you are on the localizer your nose  is pointed down thus somewhat blocking

  the antenna if it's on the bottom rear.  That's why he said it's predominantly installed on top of the VS. 

  

 I like the idea of putting it on the bottom where  it's not so visible and I'm leaning that way.

  

 Wayne Edgerton # 40336

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Tdawson(at)avidyne.com
Guest

Posted: Mon Mar 27, 2006 7:05 am Post subject: Nav antenna chice and placement

Put it in the wingtip and it’s not visible at all . . .  

   

TDT

 40025  

         

  

From: owner-rv10-list-server(at)matronics.com [mailto:owner-rv10-list-server(at)matronics.com] On Behalf Of Wayne Edgerton

 Sent: Monday, March 27, 2006 8:57 AM

 To: rv10-list(at)matronics.com

 Subject: Re: Nav antenna chice and placement  

  

     

I was told by someone, who's opinion that I trust, that the reason the antenna is on the top   

    

is because when you are on the localizer your nose is pointed down thus somewhat blocking  

    

 the antenna if it's on the bottom rear. That's why he said it's predominantly installed on top of the VS.   

    

   

    

I like the idea of putting it on the bottom where it's not so visible and I'm leaning that way.  

    

   

    

Wayne Edgerton # 40336

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LessDragProd(at)AOL.COM
Guest

Posted: Mon Mar 27, 2006 9:02 am Post subject: Nav antenna chice and placement

How about the invisible Bob Archer wingtip NAV antenna, as already  mentioned.

 Bob Archer's antenna is a gamma antenna.  The whole airframe is the  ground plane.

  

 It does work better than either the top or bottom mounted VOR dipole  pair.

  

 Just my $.02

 Jim Ayers

  

 In a message dated 03/27/2006 6:01:13 AM Pacific Standard Time,  weeav8ter(at)grandecom.net writes:

  	  Quote: 	
		     I was told by someone, who's opinion that I    trust, that the reason the antenna is on the top 

   is because when you are on the localizer your    nose is pointed down thus somewhat blocking

    the antenna if it's on the bottom rear.    That's why he said it's predominantly installed on top of the VS.  

    

   I like the idea of putting it on the bottom where    it's not so visible and I'm leaning that way.

    

   Wayne Edgerton #  40336

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