Re: [IRCA] Active Whips Mounted Horizontally
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Re: [IRCA] Active Whips Mounted Horizontally

Russ,
What about a broadband loop, such as the Wellbrooke ALA-1530S? I have one purchased, and setting the shack awaiting installation. Would this be a good choice? 


Les Rayburn, Director
High Noon Film
130 1st Avenue West
Alabaster, AL 35007-8536
(205) 621-7500
(205) 621-7505 FAX
(205) 253-4867 CELL
http://www.highnoonfilm.com

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On 3/2/2014 1:17 PM, Russ Edmunds wrote:

My understanding is that more electrical noise is vertically polarized than horizontally, so there
could be an advantage in a horizontal antenna on that score. However, by putting the antenna
in the horizontal plane, it is now no longer omnidirectional, but rather somewhat bidirectional,
which may or may not be a good thing.

Where noise is a problem, one's optimum choices would be an inductive antenna. This will
normally also be directional, whether it's an indoor tuned air core loop or an outdoor untuned
superloop or flag. The former would also include a ferrite core tuned indoor antenna.

These will all almost always be quieter than a wire antenna of almost any length, either
vertically or horizontally polarized.

But since you are using an SDR, which is broadband, any of the tuned indoor loop options
would be impractical as they are not broadband.

Russ Edmunds
15 mi NNW of Philadelphia
Grid FN20id
<wb2bjh@xxxxxxxxx>



--------------------------------------------
On Sun, 3/2/14, Les Rayburn <les@xxxxxxxxxxxxxxxx> wrote:

  Subject: [IRCA] Active Whips Mounted Horizontally
  To: "am@xxxxxxxxxxx" <am@xxxxxxxxxxx>, "irca@xxxxxxxxxxxxxxxx" <irca@xxxxxxxxxxxxxxxx>
  Date: Sunday, March 2, 2014, 2:08 PM
Forgive more of my silly questions, 
  but here goes. I continue to try to fight, abate, and reduce
  local noise here in my suburban neighborhood. Deed
  restrictions complicate things further, since no visible
  outside antennas are allowed.
Would mounting the active whips horizontally have any effect 
  on the noise that they're receiving? I notice that noise
  seems to generally be lower using horizontal antennas than
  verticals in my situation?
-- 73, Les Rayburn, N1LF 
  Maylene, AL
  EM63
Member NRC, IRCA, & Medium Wave DX Circle 
  Former CPC Chairman for NRC/IRCA
Perseus SDR, SDR-IQ,Funcube Pro, Wellbrooke ALA-1530+ loop, 
  LF Engineering Active Whips,
  Quantum Phaser, Kiwa Loop, Palstar MW Pre-Selector
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--
73,


Les Rayburn, N1LF
Maylene, AL
EM63

Member NRC, IRCA, & Medium Wave DX Circle
Former CPC Chairman for NRC/IRCA
Perseus SDR, SDR-IQ,Funcube Pro, Wellbrooke ALA-1530+ loop, LF Engineering Active Whips, 
Quantum Phaser, Kiwa Loop, Palstar MW Pre-Selector

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