Topband: Quick question on radials

[jacobsen_5 at msn.com]

  ----- Original Message ----- 
  From: jacobsen_5 at msn.com<mailto:jacobsen_5 at msn.com> 
  To: g3nrw at yahoo.co.uk<mailto:g3nrw at yahoo.co.uk> 
  Cc: Topband<mailto:Topband at contesting.com> 
  Sent: Sunday, January 06, 2008 12:07 PM
  Subject: re:Quick question on radials


  Ian, G3NRW, was asking about the most efficient use of wire for radials.

  Ian, IF I remember correctly, the ARRL antenna book  OR  ON4UN's book on low band antennas, has chart/graph on the most eff. use of wire for radials. If I get time, I'll dig through the books and see if I can find the info for you.

  Good luck with the project.
  73 es GDDX
  K9WN  Jake

  Ian and all......... ARRL Ant. Book/20th ed. Page 3-10. Table 1. In short:
  If you have 1.6 wave lngths of wire, put down 16 radials, 0.1 wave lngth, spaced 22 deg.  Your sig will be aprox -3db down.

  If you have 3 wave lngths of wire, use 24 radials, 0.125 long, spaced 15 deg.  sig loss -2 db.

  covers   36, 60, 90, and 120 total radials. 

  Hope this helps.
  K9WN  Jake