Topband
[Top] [All Lists]

Re: Topband: Shunt feeding tower

To: "LB3RE LJ3RE Stein-Roar Brobakken" <post@lb3re.com>, "Pete Smith N4ZR" <n4zr@contesting.com>
Subject: Re: Topband: Shunt feeding tower
From: "Carl" <km1h@jeremy.mv.com>
Date: Wed, 27 Aug 2014 09:27:51 -0400
List-post: <topband@contesting.com">mailto:topband@contesting.com>
All I had on my tower were the 3 coax cables and rotator wire which were all taped to the tower about every 5' which apparently decoupled them. The coax also had about 15" of large 43 mix ferrite beads over them right at the feedpoint a few years before I was on 160. That was for TVI prevention.

Carl
KM1H


----- Original Message ----- From: "LB3RE LJ3RE Stein-Roar Brobakken" <post@lb3re.com>
To: "Pete Smith N4ZR" <n4zr@contesting.com>
Cc: <topband@contesting.com>
Sent: Wednesday, August 27, 2014 8:35 AM
Subject: Re: Topband: Shunt feeding tower


How is inteference on rotor or relay boxes?I thinking 1kw generate magnetic radiation into cables ??? How u solve this guys ?? Tnx

---Sent by iphoneLB3RE LJ3RE K3RAG ex: LA6FJAwww.lb3re.com ~ Rag ~ Stein Roar Brobakken e-mail:post@lb3re.comhttp://la5o.wordpress.comwww.contesting.no

Reading about 3-wire cages and the like, I feel a serious case of shunt
envy.  Mine is a single wire about 18 inches from one corner of my Rohn
25, connected to the tower at about 50 feet.  I used an omega match with
a couple of 3 KV transmitting variables, because my tower is quite tall
for 160 (97 feet with 3 yagis, 2 on top) and I could not find a 50-ohm
point.It was absurdly easy to adjust and seems to work quite well at 100
watts.  I'm sure there are better solutions (including Herb's), but this
was really simple.



73, Pete N4ZR

Check out the Reverse Beacon Network at

http://reversebeacon.net,

blog at reversebeacon.blogspot.com.

For spots, please go to your favorite

ARC V6 or VE7CC DX cluster node.



On 8/26/2014 5:12 PM, Don wrote:

I would like to get on 160 this question most likely has been asked a 1000 time but I need information as how or can I shunt feed my 55 ft rohn 45 .



Don

_________________

Topband Reflector Archives - http://www.contesting.com/_topband





_________________

Topband Reflector Archives - http://www.contesting.com/_topband

_________________
Topband Reflector Archives - http://www.contesting.com/_topband


-----
No virus found in this message.
Checked by AVG - www.avg.com
Version: 2014.0.4716 / Virus Database: 4007/8110 - Release Date: 08/27/14


_________________
Topband Reflector Archives - http://www.contesting.com/_topband

<Prev in Thread] Current Thread [Next in Thread>