[TowerTalk] Was "43ft Vertical Feeding
7s7v at adamomail.se
Tue Nov 25 12:53:10 EST 2008
I have decide to build matching unit/tuner:
Frits wrote to me:
the balun is special wound 1 ÷ 1 balun with a T200-2
For the windings see attachement.
My S-Match design is suited for symmetric ( =balanced ant
asymmetric ( = end fed ant systems) antennas.
On Tue, 25 Nov 2008 10:06:13 -0500
"David Jordan" <wa3gin at comcast.net> wrote:
> The high voltage appears at the tip of the vertical,
>where the corona ball
> goes. I believe the feedpoint is the high current
>portion of the antenna
> where most of the radiation starts...
> -----Original Message-----
>From: towertalk-bounces at contesting.com
> [mailto:towertalk-bounces at contesting.com] On Behalf Of
> Sent: Tuesday, November 25, 2008 9:53 AM
> To: WA3GIN
> Cc: towertalk at contesting.com; Samir Popaja; Richards
> Subject: Re: [TowerTalk] Was "43ft Vertical Feeding
> WA3GIN wrote:
>> Why not just purchase two 5 or 8 port automatic antenna
>> LC network for each band in-between the ports. One coax
>> to LC networks, five outputs from LC networks to one
>>output to bast of
>> antenna. It all fits in an outdoor inclosure (surface
>>mounted or use the
>> bury type often used for sprinkler cut-off valves).
Samir, SM7VZX (7S7V)
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