I have decide to build matching unit/tuner:
http://www.xs4all.nl/~pa0fri/ATU/Smatch/smatcheng.htm
Frits wrote to me:
"Hello Samir,
the balun is special wound 1 ÷ 1 balun with a T200-2
(Micrometals/Amidon)
toroid see:
http://cgi.ebay.nl/ws/eBayISAPI.dll?ViewItem&item=300253701721&indexURL=
For the windings see attachement.
My S-Match design is suited for symmetric ( =balanced ant
systems) and
asymmetric ( = end fed ant systems) antennas.
73,
Frits, PAØFRI"
BEST REGARDS
Samir
On Tue, 25 Nov 2008 10:06:13 -0500
"David Jordan" <wa3gin@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@contesting.com
> [mailto:towertalk-bounces@contesting.com] On Behalf Of
>jimlux
> Sent: Tuesday, November 25, 2008 9:53 AM
> To: WA3GIN
> Cc: towertalk@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)
www.qsl.net/7s7v
www.sk7mw.se
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