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SD-FM from Sirio

 
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SD-FM from Sirio
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humando
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Joined: 05 Mar 2005
Posts: 13

Post SD-FM from Sirio Reply with quote
Hello,

I am just wondering if you know this kind of dipole antenna with 3 elements instead 2 ????





Curiously the both poles are grounded and only the lower part of the third element is connected on the "+" (the top is grounded again)...

The information on the antenna is here:

http://www.thiecom.de/sdfm.htm


Thanks for your help.
Thu Jul 21, 2005 1:26 pm View user's profile Send private message
humando
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Joined: 05 Mar 2005
Posts: 13

Post Reply with quote
Ooups,

I found the reply on a french website... this is a gamma-match dipole antenna...

----> http://equi-radio.ifrance.com/ante.htm#gamma

... picture of a gamma match antenna:

----> http://equi-radio.ifrance.com/gamma1.htm
Thu Jul 21, 2005 2:06 pm View user's profile Send private message
Frogman
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Joined: 21 Jul 2005
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Location: Ontario

Post 3 element dipole Reply with quote
This is a Gamma fed dipole. Any dipole I've seen of this design has been a 75 Ohm impedence. the small element is the gamma match
Wed Jul 27, 2005 10:44 pm View user's profile Send private message
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