[K3PZN-List] antenna problems ... well i think its a goodproblem?

Sun Mar 18 23:05:51 EDT 2012

Just for information a 102 ft dipole will not perform too well (even if you can load/match it with a tuner).  Reason?  It is way too short to be a productive antenna 

on TB and you may be able to work some very local stations but much more than 200-300 miles out will put you at a serious disadvantage.  The other thing is.. put the rope on the center of the dipole and get it as high as you can.. then support the ends at whatever height you can.. dont forget to take into consideration the sway of the trees so dont make it too tight that it breaks in the first wind storm 

RE Ladder line -   in the old days before cable TV  the mountian folk used to put their TV antennas up on the top of the local mountian and run homebrew (yes homebrew) open wire feeder up the mountian.  This was often 2,3 or even 4000 ft of wire.  Quite often they used the wire they had on hand which mostly was electric fence wire made of either hard drawn aluminum or galvanized wire.  Usually this was such an undertaking that a group of families got together and put one antenna up for several households.. they just tapped off the open wire feedline at whatever location was convienient and ran it into their house .. .then tied it to their TV set.  There is very little RF loss to true openwire line the losses are mostly ohmic in nature (basically DC resistance). So it wasnt hard to put up 4000 ft and only have a db or two of loss in the TV signal at the set.  

Ohhh  if you want to get on TB .. use an inverted L not a dipole that is if you want to work DX. 

Jim  WA3MEJ 

P.S has anyone worked any of the wild DX this week during the solar storms?  

----- Original Message -----

From: "Wayne" <M.Wayne.Wilson at comcast.net> 
To: "Carroll County Amateur Radio Club" <k3pzn-list at mailman.qth.net> 
Sent: Sunday, March 18, 2012 11:21:05 AM 
Subject: Re: [K3PZN-List] antenna problems ... well i think its a        goodproblem? 

Ladder line is good and it could be a mile and still usuable. But with that 
length the line should use at least 14 AWG stranded wire. RFC has one that 
is 390 ohm I use 125 feet here with a 141 foot dipole and it is easy to tune 
10 through 80 but not as easy on 160 as the 256 foot offset windom. 

Wayne N3UN 

-----Original Message----- 
From: k3pzn-list-bounces at mailman.qth.net 
[mailto:k3pzn-list-bounces at mailman.qth.net] On Behalf Of Peter Morton 
Sent: Sunday, March 18, 2012 10:29 AM 
To: Carroll County Amateur Radio Club 
Subject: Re: [K3PZN-List] antenna problems ... well i think its a 
goodproblem? 

Ray- 

www.therfc.com is a good source for ladder line.  He is in Gaithersburg. 

-Pete, W3GVX 

----- Original Message ----- 
From: "Ray Wright" <razor42 at hughes.net> 
To: <k3pzn-list at mailman.qth.net> 
Sent: Saturday, March 17, 2012 10:35 PM 
Subject: [K3PZN-List] antenna problems ... well i think its a good problem? 

> Hello all 
> 
> Ok I have ordered a 160-6band  doublet antenna 102 ft long.  Well I put 
> the rope 
> lines up in prep for the antennas arrival and have notice a potential 
> problem.  Well got the ends up at 110 and 115 respectively .... but the 
> center hangs at 86 ft  the antenna comes with 100ft of feed ladder line 
> ooopsss I 
> don't have enough.  Can you add additional ladder line to the 100 ft of 
> ladder line I already have before I put it into the tunner with out 
> causing 
> problems?  Mike know were I can get additional ladder line? 
> 
> 
> 
> my new ham motto .... " havent seen a 100ft tree I dont want 
> to stick an antenna in".  I have run the local ace store at rt 94 
> and rt 26 intersection out of 1/4 poly rope.  is there a 12 step program 
> for this?  :) 
> 
> regards ray 
> 
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