Ladderline question,need advice

Ladderline question,need advice

Post by Cm131 » Sun, 04 Mar 2001 03:05:57

i am making my first dipole antenna,i want to use it 10-80 meters,I would like
to use ladderline from the dipole to my antenna tuner.Do you think that the 300
ohm TV type ladderline will work for me?I cant find any 450 ohm ladderline
where i live.I have found the 300 ohm type at Radio shack.Any and all advice is
most welcome.
Thanks,
James
 
 
 

Ladderline question,need advice

Post by W6RCecil » Sun, 04 Mar 2001 03:12:45



> i am making my first dipole antenna,i want to use it 10-80 meters,I would like
> to use ladderline from the dipole to my antenna tuner.Do you think that the 300
> ohm TV type ladderline will work for me?I cant find any 450 ohm ladderline
> where i live.I have found the 300 ohm type at Radio shack.Any and all advice is
> most welcome. Thanks, James

For anti-resonant one wavelength dipoles, 300 ohm line will yield a
higher SWR and may be harder to match than 450 ohm line so you can
expect matching problems on some bands. Hopefully, those won't be
your favorite bands.

Make your dipole 1/2WL on the lowest frequency of operation and feed
it with an integral multiple of 1/2WL feedline. Fine tune the other
bands from there.
--
http://www.mindspring.com/~w6rca

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Ladderline question,need advice

Post by Irv Finklema » Sun, 04 Mar 2001 03:26:50


> i am making my first dipole antenna,i want to use it 10-80 meters,I would like
> to use ladderline from the dipole to my antenna tuner.Do you think that the 300
> ohm TV type ladderline will work for me?I cant find any 450 ohm ladderline
> where i live.I have found the 300 ohm type at Radio shack.Any and all advice is
> most welcome.
> Thanks,
> James

I used the cheapest 300 ohm twinlead I could buy (Radio Scrap).  The antenna was
put up as 'temporary' and when I took it down 13 years later the twinlead was as
good as
when I put it up.  I got consistent compliments on my signals from local and Dx
stations.

--

Please hit 'REPLY TO' e-mail address before sending. Thanks.
Irv Finkleman,
Grampa/Ex-Navy/Old Fart/Ham Radio VE6BP
Calgary, Alberta, Canada

 
 
 

Ladderline question,need advice

Post by Bob Mille » Sun, 04 Mar 2001 10:33:31


>i am making my first dipole antenna,i want to use it 10-80 meters,I would like
>to use ladderline from the dipole to my antenna tuner.Do you think that the 300
>ohm TV type ladderline will work for me?I cant find any 450 ohm ladderline
>where i live.I have found the 300 ohm type at Radio shack.Any and all advice is
>most welcome.
>Thanks,
>James

You can always order it. http://www.thewireman.com/ has several selections under
Balanced Line...

Bob
k5qwg

 
 
 

Ladderline question,need advice

Post by KA9CA » Wed, 07 Mar 2001 03:16:32

I have used Radio Shack 300 ohm feedline on all of my wire antenna's for the
last 25 years.  It is much lighter than the  450 stuff, and since the
antenna is Non Resonant I don't know what the impeadance of the antenna is
anyway.

KA9CAR


Quote:> i am making my first dipole antenna,i want to use it 10-80 meters,I would
like
> to use ladderline from the dipole to my antenna tuner.Do you think that
the 300
> ohm TV type ladderline will work for me?I cant find any 450 ohm ladderline
> where i live.I have found the 300 ohm type at Radio shack.Any and all
advice is
> most welcome.
> Thanks,
> James

 
 
 

Ladderline question,need advice

Post by abock.. » Wed, 07 Mar 2001 06:16:50


>I have used Radio Shack 300 ohm feedline on all of my wire antenna's for the
>last 25 years.  It is much lighter than the  450 stuff, and since the
>antenna is Non Resonant I don't know what the impeadance of the antenna is
>anyway.

>KA9CAR



>> i am making my first dipole antenna,i want to use it 10-80 meters,I would
>like
>> to use ladderline from the dipole to my antenna tuner.Do you think that
>the 300
>> ohm TV type ladderline will work for me?I cant find any 450 ohm ladderline
>> where i live.I have found the 300 ohm type at Radio shack.Any and all
>advice is
>> most welcome.
>> Thanks,
>> James

I use a 132 ft. dipole with 450 ohm ladder line but 300 is fine.
Either way you have to use a tuner as you know.  You can look in any
Ham magazine and find several sources for 450 ohm line also.  
Good luck.  73 de K2ES
 
 
 

Ladderline question,need advice

Post by Rudy Marcellett » Wed, 07 Mar 2001 07:03:10

order it from www.radioworks.com

>i am making my first dipole antenna,i want to use it 10-80 meters,I would
like
>to use ladderline from the dipole to my antenna tuner.Do you think that the
300
>ohm TV type ladderline will work for me?I cant find any 450 ohm ladderline
>where i live.I have found the 300 ohm type at Radio shack.Any and all
advice is
>most welcome.
>Thanks,
>James