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Hans 06-05-2005 11:50 PM

Back Window
 
http://www.cal48.com/87/p10102431.jpg

Stupid Question :duh:


Is there a whole drilled in the glass to hold that cell antenna mount?

If so whats a back window cost?

LakevilleSSEi 06-05-2005 11:56 PM

Nope....No hole. Just grab a good hold of it and rip it off. Both sides of course. It just transmits through the glass.

randman1 06-05-2005 11:56 PM

No hole in the glass. Electrically, a glass mounted antenna works like a capacitor: two conductors separated by an insulator (the glass)

Hans 06-05-2005 11:59 PM


Originally Posted by randman1
No hole in the glass. Electrically, a glass mounted antenna works like a capacitor: two conductors separated by an insulator (the glass)


Fiber Optics :?:


Not quite an insulator lol

randman1 06-06-2005 12:01 AM

Glass is an excellent electrical insualtor.

Hans 06-06-2005 12:04 AM


Originally Posted by randman1
Glass is an excellent electrical insualtor.


So if it was an insulator how would current flow?

randman1 06-06-2005 12:19 AM

That's the idea. It's not suposed to conduct.

Without getting too technical, because RF transmissions are a sine wave, the signal passes through the glass because of the capacitor-like properties of the antenna.

http://www.ee.washington.edu/circuit.../activeant.gif

This is a very basic and typical schematic of an antenna found through a Google search. C1 is a capacitor on the antenna input. This is essentially your window.

Hans 06-06-2005 12:24 AM


Originally Posted by randman1
That's the idea. It's not suposed to conduct.

Without getting too technical, because RF transmissions are a sine wave, the signal passes through the glass because of the capacitor-like properties of the antenna.

http://www.ee.washington.edu/circuit.../activeant.gif

This is a very basic and typical schematic of an antenna found through a Google search. C1 is a capacitor on the antenna input. This is essentially your window.


Alright. I will quit arguing.

randman1 06-06-2005 12:28 AM

:werd: Electronics are fun.

Hans 06-06-2005 12:32 AM


Originally Posted by randman1
:werd: Electronics are fun.

yeah like I remember a lot from that digital electronics course in college :lol:


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