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Transponder antenna signal

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Speedy11(at)aol.com
Guest

Posted: Fri Jan 14, 2011 8:44 pm Post subject: Transponder antenna signal

Bob - or other antenna gurus,

 I want to streamline my transponder antenna.  I have the short (3  inch) stub antenna with the ball on the tip.  To streamline it I'm going to  make an epoxy resin fiberglass covering that will look like a blade  antenna.

 Please confirm for me that streamlining with a fiberglass covering will not  affect signal performance.

 Thanks,

 Stan Sutterfield

  [quote][b]

dsvs(at)ca.rr.com
Guest

Posted: Fri Jan 14, 2011 9:42 pm Post subject: Transponder antenna signal

Stan,

Can’t answer your question but check out this site for a streamlined antenna.  www.deltapopaviation.com   

 

From: owner-aeroelectric-list-server(at)matronics.com [mailto:owner-aeroelectric-list-server(at)matronics.com] On Behalf Of Speedy11(at)aol.com

Sent: Friday, January 14, 2011 8:41 PM

To: aeroelectric-list(at)matronics.com

Subject: Transponder antenna signal

 

Bob - or other antenna gurus,



I want to streamline my transponder antenna.  I have the short (3 inch) stub antenna with the ball on the tip.  To streamline it I'm going to make an epoxy resin fiberglass covering that will look like a blade antenna.



Please confirm for me that streamlining with a fiberglass covering will not affect signal performance.



Thanks,



Stan Sutterfield

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kuffel(at)cyberport.net
Guest

Posted: Fri Jan 14, 2011 11:24 pm Post subject: Transponder antenna signal

Stan,

  

 <<  streamline  my transponder antenna...  streamlining with a fiberglass covering will not affect signal  performance.<?xml:namespace prefix = o ns =  "urn:schemas-microsoft-com:office:office" />  >>

  

 As long as you don't use any paint/ingredients  containing metal or carbon there shouldn't be any observable  difference.

  

 Tom Kuffel

   [quote][b]

rparigoris

Joined: 24 Nov 2009
Posts: 796

Posted: Sat Jan 15, 2011 3:45 pm Post subject: Transponder antenna signal

Hi Stan<< streamline my transponder antenna... streamlining with a fiberglass > covering will not affect signal performance. >> I am using an AAE transponder antenna in my plastic Europa. AAE says if you are installing it on the side of a plastic aeroplane that you must stand the antenna off with a supplied piece of Balsa. You could contact them and ask why. I think I did and it was perhaps electrostatic build up?Ron Parigoris   [quote][b]

Mauledriver(at)nc.rr.com
Guest

Posted: Sat Jan 15, 2011 4:36 pm Post subject: Transponder antenna signal

I like that.

     

     You've been watching:

     http://www.youtube.com/watch?v=ftq8jTQ8ANE

     (excuse me if I'm being circular here)

     

     Bill "need something to do until it warms up" Watson

     

     On 1/14/2011 11:41 PM, Speedy11(at)aol.com (Speedy11(at)aol.com) wrote:     [quote]                              Bob - or other antenna gurus,

         I want to streamline my transponder antenna.  I have the           short (3 inch) stub antenna with the ball on the tip.  To           streamline it I'm going to make an epoxy resin fiberglass           covering that will look like a blade antenna.

         Please confirm for me that streamlining with a fiberglass           covering will not affect signal performance.

         Thanks,

         Stan Sutterfield

       

     [b]

sportav8r(at)gmail.com
Guest

Posted: Sat Jan 15, 2011 7:09 pm Post subject: Transponder antenna signal

I built just such a radome for my XPDR antenna and it worked fine, until a bit of oil collected in it from the belly - that was a different story.  I think it attenuated the signal quite a bit, but I later found I was having other issues with my XPDR tray coax fitting that overshadowed any oil contamination problem inside the radome. 



I must say: while it was a fun exercise in making molds and casting a fiberglass part, it did nothing noticeable for my top speed.

Bill B

RV-6A



 On Sat, Jan 15, 2011 at 7:30 PM, Bill Watson <Mauledriver(at)nc.rr.com (Mauledriver(at)nc.rr.com)> wrote:

[quote]                     I like that.

     

     You've been watching:

     http://www.youtube.com/watch?v=ftq8jTQ8ANE

     (excuse me if I'm being circular here)

     

     Bill "need something to do until it warms up" Watson

     

     On 1/14/2011 11:41 PM, Speedy11(at)aol.com (Speedy11(at)aol.com) wrote:     

 	  Quote: 	
		                                Bob - or other antenna gurus,

         I want to streamline my transponder antenna.  I have the           short (3 inch) stub antenna with the ball on the tip.  To           streamline it I'm going to make an epoxy resin fiberglass           covering that will look like a blade antenna.

         

Please confirm for me that streamlining with a fiberglass           covering will not affect signal performance.

         Thanks,

         Stan Sutterfield

       

     	
     

        	  Quote: 	
		  



ist" target="_blank">http://www.matronics.com/Navigator?AeroElectric-List

tp://forums.matronics.com

_blank">http://www.matronics.com/contribution



	




[b]

email(at)jaredyates.com
Guest

Posted: Sat Jan 15, 2011 7:51 pm Post subject: Transponder antenna signal

Stan, One of my local chapter members found a shark-fin style unit on ebay for less than $20 shipped.  He stripped the paint off and found it to be made of what appeared to be mostly solid aluminum, so he repainted it and installed it.  You might be able to find something similar, unless you are wanting to enjoy the sport of building up some foam or balsa and coating it with light fiberglass cloth and such.

  

On Sat, Jan 15, 2011 at 10:05 PM, Bill Boyd <sportav8r(at)gmail.com (sportav8r(at)gmail.com)> wrote:

[quote]  I built just such a radome for my XPDR antenna and it worked fine, until a bit of oil collected in it from the belly - that was a different story.  I think it attenuated the signal quite a bit, but I later found I was having other issues with my XPDR tray coax fitting that overshadowed any oil contamination problem inside the radome.   



I must say: while it was a fun exercise in making molds and casting a fiberglass part, it did nothing noticeable for my top speed.

Bill B

RV-6A



   On Sat, Jan 15, 2011 at 7:30 PM, Bill Watson <Mauledriver(at)nc.rr.com (Mauledriver(at)nc.rr.com)> wrote:



 	  Quote: 	
		                         I like that.

     

     You've been watching:

     http://www.youtube.com/watch?v=ftq8jTQ8ANE

     (excuse me if I'm being circular here)

     

     Bill "need something to do until it warms up" Watson

     

     On 1/14/2011 11:41 PM, Speedy11(at)aol.com (Speedy11(at)aol.com) wrote:     

 	  Quote: 	
		                                Bob - or other antenna gurus,

         I want to streamline my transponder antenna.  I have the           short (3 inch) stub antenna with the ball on the tip.  To           streamline it I'm going to make an epoxy resin fiberglass           covering that will look like a blade antenna.

         

Please confirm for me that streamlining with a fiberglass           covering will not affect signal performance.

         Thanks,

         Stan Sutterfield

       

     	


     

        	  Quote: 	
		  



ist" target="_blank">http://www.matronics.com/Navigator?AeroElectric-List

tp://forums.matronics.com

_blank">http://www.matronics.com/contribution



	




	




   	  Quote: 	
		  



ist" target="_blank">http://www.matronics.com/Navigator?AeroElectric-List

tp://forums.matronics.com

_blank">http://www.matronics.com/contribution



	




[b]

BobsV35B(at)aol.com
Guest

Posted: Sat Jan 15, 2011 8:00 pm Post subject: Transponder antenna signal

Good Evening Bill B.

  

 I always install the little blade antennas because I have broken so many of  the little "wire with a ball" style either when washing the belly or just  rolling around under the airplane on a creeper.

  

 Happy Skies,

  

 Old Bob

 LL22

 Stearman N3977A

  

  In a message dated 1/15/2011 9:10:23 P.M. Central Standard Time,  sportav8r(at)gmail.com writes:

  	  Quote: 	
		  I built    just such a radome for my XPDR antenna and it worked fine, until a bit of oil    collected in it from the belly - that was a different story.  I think it    attenuated the signal quite a bit, but I later found I was having other issues    with my XPDR tray coax fitting that overshadowed any oil contamination problem    inside the radome.    



   I must say: while it was a fun exercise in making molds and casting a    fiberglass part, it did nothing noticeable for my top speed.

   



   Bill B

   RV-6A

	


  [quote][b]

Speedy11(at)aol.com
Guest

Posted: Sun Jan 16, 2011 2:02 pm Post subject: Transponder antenna signal

Great responses from everyone.  I appreciate each one.   Like Old Bob, I've broken off stub antenna.  I'd considered switching to a  blade antenna, but didn't want to fit a new antenna.  I will reconsider  that option, but I'd like to investigate doing my own "antenna  fairing."

 I've been gradually making streamlining changes to my RV-8A and I now claim  the status of "world's fastest RV-8A."  Maybe a streamlined transponder  antenna will help a tiny bit more.  My new target is 200 KIAS in level  flight at 1000" MSL.  I'm already within reach of that goal.

 Thanks again for your responses.

 Stan Sutterfield

  

  

 I like that.



You've been  watching:

http://www.youtube.com/watch?v=ftq8jTQ8ANE

(excuse me if I'm  being circular here)



Bill "need something to do until it warms up"  Watson



On 1/14/2011 11:41 PM, Speedy11(at)aol.com wrote:

 	  Quote: 	
		   Bob - or  other antenna gurus,

 I want to streamline my transponder antenna.   I have the short (3 

 inch) stub antenna with the ball on the tip.   To streamline it I'm 

 going to make an epoxy resin fiberglass covering  that will look like a 

 blade antenna.

 Please confirm for me that  streamlining with a fiberglass covering 

 will not affect signal  performance.

 Thanks,

 Stan Sutterfield


	




 

  

  [quote][b]

JOHN TIPTON

Joined: 17 Sep 2006
Posts: 239
Location: Torquay - England

Posted: Sun Jan 16, 2011 3:28 pm Post subject: Transponder antenna signal

200 KIAS at 1000 " (inches) - WOW

  

 John

 [quote]   ---

Float Flyr

Joined: 19 Jul 2006
Posts: 2704
Location: Campbellton, Newfoundland

Posted: Sun Jan 16, 2011 8:05 pm Post subject: Transponder antenna signal

I figure that a transponder antenna will have about the same effect on an aircraft that flies less then 150kt/hr as a good wax job.  As the speed goes up the fairing of everything becomes more noticeable.  Pardon me for stating the obvious.

 

As for the look of a faired antenna it is, to me, much nicer to look at.  If you consider fairing the antenna yourself then I guess you should also consider the cost of the resins, fillers and paint or finish.  Then factor in all the time to cast a reasonable fairing and the extra ounces that it will add to your plane.  If your plane is less than 200kt I wouldn’t bother...  If it’s better than 200 kt I’d be on the lookout for a faired antenna..  Put the bug in to all local avionics shops you’ll be surprised what you can come up with.

 

Noel

 

From: owner-aeroelectric-list-server(at)matronics.com [mailto:owner-aeroelectric-list-server(at)matronics.com] On Behalf Of JOHN TIPTON

Sent: January 16, 2011 7:55 PM

To: aeroelectric-list(at)matronics.com

Subject: Re: Re: Transponder antenna signal 

 

200 KIAS at 1000 " (inches) - WOW



 



John

[quote]

---

_________________
Noel Loveys
Kitfox III-A
Aerocet 1100 Floats

rv6awingman(at)gmail.com
Guest

Posted: Mon Jan 17, 2011 7:12 am Post subject: Transponder antenna signal

Stan, 

 Interesting post "world's fastest RV-8A", indeed.  How about sharing some of the tricks you used to achieve this goal.  You maybe onto something here, starting a new trend in "experimenting".   

 



Marty RV-6A N826ME

 

 



Time: 02:02:03 PM PST US

From: Speedy11(at)aol.com (Speedy11(at)aol.com)

Subject: Re: Transponder antenna signal

Great responses from everyone.  I appreciate each one.   Like Old Bob, I've

 broken off stub antenna.  I'd considered switching to a  blade antenna, but

didn't want to fit a new antenna.  I will reconsider  that option, but I'd

like to investigate doing my own "antenna  fairing."

 I've been gradually making streamlining changes to my RV-8A and I now claim

 the status of "world's fastest RV-8A."  Maybe a streamlined transponder

antenna will help a tiny bit more.  My new target is 200 KIAS in level

 flight at 1000" MSL.  I'm already within reach of that goal.

Thanks again for your responses.

Stan Sutterfield



  [quote][b]

JohnInReno

Joined: 08 Sep 2007
Posts: 150

Posted: Tue Jan 18, 2011 3:47 pm Post subject: Transponder antenna signal

I just saw a picture posted re: oil separator that showed a     transponder antenna mounted inside the lower cowling. Looked     interesting but I'm not sure which group it was.

     

     john

     

     On 1/16/2011 1:57 PM, Speedy11(at)aol.com (Speedy11(at)aol.com) wrote:     [quote]                                         Great responses from               everyone.  I appreciate each one.  Like Old Bob, I've               broken off stub antenna.  I'd considered switching to a               blade antenna, but didn't want to fit a new antenna.  I               will reconsider that option, but I'd like to investigate               doing my own "antenna fairing."

           I've been gradually making streamlining changes to my             RV-8A and I now claim the status of "world's fastest             RV-8A."  Maybe a streamlined transponder antenna will help a             tiny bit more.  My new target is 200 KIAS in level flight at             1000" MSL.  I'm already within reach of that goal.

           Thanks again for your responses.

           Stan Sutterfield

            

            

           I like that.

               

               You've been watching:

               http://www.youtube.com/watch?v=ftq8jTQ8ANE

               (excuse me if I'm being circular here)

               

               Bill "need something to do until it warms up" Watson

               

               On 1/14/2011 11:41 PM, Speedy11(at)aol.com (Speedy11(at)aol.com) wrote:

               > Bob - or other antenna gurus,

               > I want to streamline my transponder antenna.  I have               the short (3 

               > inch) stub antenna with the ball on the tip.  To               streamline it I'm 

               > going to make an epoxy resin fiberglass covering that               will look like a 

               > blade antenna.

               > Please confirm for me that streamlining with a               fiberglass covering 

               > will not affect signal performance.

               > Thanks,

               > Stan Sutterfield

             

         

          

               	  Quote: 	
		  

	
     [b]

_________________
John Morgensen
RV-9A - Born on July 3, 2013
RV4 - for sale

JOHN TIPTON

Joined: 17 Sep 2006
Posts: 239
Location: Torquay - England

Posted: Wed Jan 19, 2011 12:48 am Post subject: Transponder antenna signal

Hi John (Morgensen)

  

 I saw that article, and I checked it out, see below

  

 John (RV9a wings - England)

  

  

 ---

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