Re: Q about balanced feed line



On Sat, 25 Feb 2006 21:31:17 GMT, The Benevolent dbu
<relaxan.d@xxxxxxxxxxxxxxxx> wrote:

I am also concerned that the feedline may be causing unbalance condition
because it is routed straight down perhaps 30 feet from the feedpoint
then it makes a sharp turn to the shack and at that point it is parallel
with one leg of the antenna for about 30 feet.

Hi Al,

Too much worry can come from too little problem. You need only ask
yourself does the line inappropriately inject receive signal from the
nulls of your antenna; or do you get RF in the shack? If neither are
a concern, there is certainly nothing worse to worry about.

It's the only way I can
do it. I have thought of discarding the multiband doublet for a plain
dipole with 52 ohm coax. I do like the doublet and my Johnson matchbox,
besides I can use this antenna on 160 when I route the feedline via a
knife switch over to my MN2700 and configure it to a inverted L.

Nothing here suggests you change anything.

73's
Richard Clark, KB7QHC
.



Relevant Pages

  • Any interesting antenna projects?
    ... I have become interested in rhombics and am currently building ... is 377 feet long and 210 feet on each side. ... that would otherwise be radiated off the back, making the antenna ... Same success on 2nd tree. ...
    (rec.radio.amateur.antenna)
  • Re: Any interesting antenna projects?
    ... I have become interested in rhombics and am currently building ... is 377 feet long and 210 feet on each side. ... that would otherwise be radiated off the back, making the antenna ... Same success on 2nd tree. ...
    (rec.radio.amateur.antenna)
  • Re: Any interesting antenna projects?
    ... I have become interested in rhombics and am currently building ... is 377 feet long and 210 feet on each side. ... that would otherwise be radiated off the back, making the antenna ... Same success on 2nd tree. ...
    (rec.radio.amateur.antenna)
  • For Basic Shortwave Radio Listening (SWL) -Think- Inverted "L" Antenna - [Was : Group: W
    ... property edge ends in a stream, eight feet down in a gully. ... The Type and Size of your Antenna depends on the Size ... Distance from the House to the Creek? ... The Wire Antenna Element - Use the Twin TelCo Wire 'As Is" ...
    (rec.radio.shortwave)
  • Re: Eavesdropper Trapped Dipole Antenna -vice- Alpha Delta DX-Ultra Shortwave Antenna
    ... * Overall Length about 43 Feet. ... [For Shortwave Listening ] ... Alpha Delta DX-Ultra Shortwave Antenna owner users ... This thing picks up some noise, but is far more noisy on lower freqs, ...
    (rec.radio.shortwave)