[TowerTalk] Was "43ft Vertical Feeding

Samir Popaja 7s7v at adamomail.se
Tue Nov 25 12:53:10 EST 2008

I have decide to build matching unit/tuner:

Frits wrote to me:
"Hello Samir,

the balun is special wound 1 ÷ 1 balun with a T200-2 
toroid see:
For the windings see attachement.

My S-Match design is suited for symmetric ( =balanced ant 
systems) and
asymmetric ( = end fed ant systems) antennas.

Frits, PAØFRI"


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 
>>relays.  Stick
> your 
>> LC network for each band in-between the ports.  One coax 
>>input, five
> outputs 
>> 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).
>> 73,
>> dave
>> wa3gin
>> -
> Sure.. 

Best Regards
Samir, SM7VZX (7S7V)

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