Subject: | Re: Europa-List: RE: Transponder antenna |
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From: | Fred Fillinger <n3eu@comcast.net> |
Date: | Mon, 18 Apr 2005 23:38:36 |
<jacques.point@total.com> > ... > On radio antenna, is the ferrite balloon around the cable mandatory ? if yes, were to find it ? > For a 1/4-wave "whip" type transponder antenna, no. For a dipole type you buy (Archer, for example), no either, unless mfr says to. For a dipole you make, yes, but one is unlikely to make an xponder antenna which works well, making the ferrite core moot. Reg, Fred F. |
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