Matronics Email Lists :: View topic

Matronics Email Lists
Web Forum Interface to the Matronics Email Lists

Get Email Distribution Too! FAQ Search Memberlist Usergroups Register

Profile Log in to check your private messages Log in

Canopy antenna?

Matronics Email Lists Forum Index -> AeroElectric-List

View previous topic :: View next topic

Author Message

Gilles

Joined: 16 May 2020
Posts: 33

Posted: Tue May 11, 2021 3:56 pm Post subject: Canopy antenna?

Hello all,



My buddy is building a light carbon fuselage airplane.



The mounting of the comm antenna is envisaged in the fiberglass fin, but 

in order to save the 0.5 kg of RG 58 to the tail, we are wondering 

whether some discreet antenna could be glued to the underside of the 

cockpit canopy?



Or maybe some not-too-lossy lighter coaxial and connectors could be used?



Any advice appreciated,



Thanks in advance,



.--



Best regards,

Gilles

http://contrails.free.fr

http://lapierre.skunkworks.free.fr

- The Matronics AeroElectric-List Email Forum -

Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:

http://www.matronics.com/Navigator?AeroElectric-List

_________________
Best regards,
Gilles
http://contrails.free.fr

Peter(at)sportingaero.com
Guest

Posted: Wed May 12, 2021 12:22 pm Post subject: Canopy antenna?

Everything is a compromise. Copper tape can be used to create an antenna, the more of the antenna that is vertical the better the performance. A BNC connector can be soldered on to the foot, not sure how the ground plane would work, perhaps it needs to be a dipole? I haven't been very close to anyone who has used a tape antenna, but my impression was always that they required more maintenance, and often have worse performance, than installed antennas. How important is a reliable radio against saving weight?

Peter



--

- The Matronics AeroElectric-List Email Forum -

Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:

http://www.matronics.com/Navigator?AeroElectric-List

Gilles

Joined: 16 May 2020
Posts: 33

Posted: Fri May 14, 2021 12:40 pm Post subject: Canopy antenna?

Le 12/05/2021 à 22:21, Peter Pengilly a écrit :

 	  Quote: 	
		   



 Everything is a compromise. Copper tape can be used to create an antenna, the more of the antenna that is vertical the better the performance. A BNC connector can be soldered on to the foot, not sure how the ground plane would work, perhaps it needs to be a dipole? I haven't been very close to anyone who has used a tape antenna, but my impression was always that they required more maintenance, and often have worse performance, than installed antennas. How important is a reliable radio against saving weight?


	




Peter,



Thank you for your advice. Indeed the main point is having a reliable 

radio, so the antenna (Bob Archer) will be in the glass fiber fin, as 

originally intended.



I'll may be able to locate some quality smaller diameter coaxial with 

acceptable performance as compared to our good old RG58.



Thanks for your help,



-- 

Best regards,

Gilles

http://contrails.free.fr

http://lapierre.skunkworks.free.fr

- The Matronics AeroElectric-List Email Forum -

Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:

http://www.matronics.com/Navigator?AeroElectric-List

_________________
Best regards,
Gilles
http://contrails.free.fr

nuckolls.bob(at)aeroelect
Guest

Posted: Fri May 14, 2021 3:16 pm Post subject: Canopy antenna?

 	  Quote: 	
		  Thank you for your advice. Indeed the main point is having a reliable radio, so the antenna (Bob Archer) will be in the glass fiber fin, as originally intended. 	


   good show



 

  	  Quote: 	
		  I'll may be able to locate some quality smaller diameter coaxial with acceptable performance as compared to our good old RG58. 	


   RG174  See if you can get a supplier that offers prefab

   cables. Putting connectors on this coax is NOT for the

   novice wire slinger.



   here is one supplier . . . there are no doubt others



    https://tinyurl.com/yfgmx3z2



 

 

   Bob . . .



   Un impeachable logic: George Carlin asked, "If black boxes

   survive crashes, why don't they make the whole airplane

   out of that stuff?"

- The Matronics AeroElectric-List Email Forum -

Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:

http://www.matronics.com/Navigator?AeroElectric-List

Display posts from previous:

	Matronics Email Lists Forum Index -> AeroElectric-List	All times are GMT - 8 Hours
Page 1 of 1

Jump to:

You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum
You cannot attach files in this forum
You can download files in this forum