[K3PZN-List] antenna problems ... well i think its a goodproblem?
wa3mej at comcast.net
wa3mej at comcast.net
Mon Mar 19 10:38:54 EDT 2012
verticals can work if care is taken to control the losses and hence the efficiency. my inverted L.. while a full size antenna is still a vertical and in less than 3 months I have worked 48 new ones and confirmed 24 I think. New ham is good and we learn in two ways.. putting up something and learning from the mistakes.. or being guided by others. Both are valid methods I just hate to see someone waste money on something that doent work very well.. Of course it depends on what he wants to do. If he wants to work close in to meet with frends etc then he is in really good shape.
TB is usable all year long if you have a decent rx antenna.. all you need is a K9AY or the like. Look at what n4is uses .. n4is.com I think.. he talks to the guys down under all summer long. As the old timers used to say put your money in the right antenna almost any rig will work.
----- Original Message -----
From: "Curt Milton" <wb8yyy at yahoo.com>
To: "Carroll County Amateur Radio Club" <k3pzn-list at mailman.qth.net>
Sent: Monday, March 19, 2012 9:29:55 AM
Subject: Re: [K3PZN-List] antenna problems ... well i think its a goodproblem?
Jim
Ham radio discussion always welcome. Do remember that Ray is an enthusiastic new ham, and he is learning fast.
I may have expressed some doubt on his G5RV on 10m - and Ray proceeded to work a ZL!
Cool story on those mountain people (like me except I got stuck growing up in Cleveland).
Actually that 102 foot doublet could work pretty well on topband - with a little imagination. As it is extremely high - if Ray would attach the two ladder line connections to a common point - and feed it against some ground radials - he would have a nifty top loaded vertical. Of course that can wait until next fall now that we are into Spring QRN. (Some how I have 60-some countries on topband with a 36 foot vertical radiator).
CUL Curt
From: "wa3mej at comcast.net" <wa3mej at comcast.net>
To: M Wayne Wilson <M.Wayne.Wilson at comcast.net>; Carroll County Amateur Radio Club <k3pzn-list at mailman.qth.net>
Sent: Sunday, March 18, 2012 11:05 PM
Subject: Re: [K3PZN-List] antenna problems ... well i think its a goodproblem?
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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