Re: [IRCA] Active Whips Mounted Horizontally
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: [IRCA] Active Whips Mounted Horizontally

Having never tried it, either with a passive whip nor an active one, I am not certain, 
however generally a random wire is directional from the ends, although not extremely 
so. However when looking at an active whip, it might only be directional off the 'top' end. 


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



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

 Subject: Re: [IRCA] Active Whips Mounted Horizontally
 To: "Russ Edmunds" <wb2bjh@xxxxxxxxx>
 Cc: "IRCA List" <irca@xxxxxxxxxxxxxxxx>, "NRC List" <am@xxxxxxxxxxx>
 Date: Sunday, March 2, 2014, 2:38 PM
 
 
   
 
     
   
   
     Russ,
 
         
 
         Great. I need to take advantage of the nice weather,
 and get
         that antenna/rotor mounted. 
 
         
 
         One last question about the active whips. If I do
 choose to
         mount them horizontally, what directions will they
 "favor"? I'd
         like to "aim" them away from the worst of
 the noise sources. 
 
         I believe that they would pickup best off the
 "ends" of the
         whip, correct? So I could point it away from the
 house with the
         worse noise maker? 
 
         
 
         
 
         
 
       
       
         
           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
 
           
            
 ---------------------------------------------
         
         
             This e-mail contains information that may be
 confidential or
             privileged and is intended only for the
 person(s) named
             above. 
 
             Any other distribution, copying or disclosure is
 strictly
             prohibited. If you have received this e-mail in
 error,
             please
 
             notify the sender immediately and return the
 original
             transmission to the above address by mail
 without making a
             copy.  
       
       On 3/2/2014 1:32 PM, Russ Edmunds wrote:
 
     
     
       The Wellbrook loops are broadband and generally
 work well with an SDR, and are less
 susceptible to noise than a vertical or wire antenna.
 
 Russ Edmunds
 15 mi NNW of Philadelphia  
 Grid FN20id
 <wb2bjh@xxxxxxxxx>
 
 
 
 --------------------------------------------
 On Sun, 3/2/14, Les Rayburn <les@xxxxxxxxxxxxxxxx>
 wrote:
 
  Subject: Re: [IRCA] Active Whips Mounted Horizontally
  To: "Russ Edmunds" <wb2bjh@xxxxxxxxx>,
 "Mailing list for the International Radio Club of
 America" <irca@xxxxxxxxxxxxxxxx>
  Date: Sunday, March 2, 2014, 2:28 PM
  
  
    
  
      
    
    
      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
  
            
             
  ---------------------------------------------
          
          
              This
 e-mail contains information that may be
  confidential or
          
    privileged and is intended only for the
  person(s) named
              above. 
  
              Any
 other distribution, copying or disclosure is
  strictly
          
    prohibited. If you have received this
 e-mail in
  error,
              please
  
              notify
 the sender immediately and return the
  original
          
    transmission to the above address by mail
  without making a
          
    copy.  
        
        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
   
   _______________________________________________
   IRCA mailing list
   IRCA@xxxxxxxxxxxxxxxx
   http://montreal.kotalampi.com/mailman/listinfo/irca
   
   Opinions expressed in messages on this mailing list
 are
   those of the original contributors and do not
 necessarily
   reflect the opinion of the IRCA, its editors,
 publishing
   staff, or officers
   
   For more information: http://www.ircaonline.org
   
   To Post a message: irca@xxxxxxxxxxxxxxxx
   
   
  
  
      
      
  
      
  
      -- 
  
        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
        
      
    
  
  
 
 
 
     
     
 
   
 
 

_______________________________________________
IRCA mailing list
IRCA@xxxxxxxxxxxxxxxx
http://montreal.kotalampi.com/mailman/listinfo/irca

Opinions expressed in messages on this mailing list are those of the original contributors and do not necessarily reflect the opinion of the IRCA, its editors, publishing staff, or officers

For more information: http://www.ircaonline.org

To Post a message: irca@xxxxxxxxxxxxxxxx