Shielding antennas
#2
(2015-01-11, 14:39)orion_jb2001 Wrote: Hi, Is it advisable to shield ferrite antennas which will be going outside?

Jeff
Shielding only prevents "E" signals from entering the ferrites. It has no effect on any magnetic fields. Many of us operate 'unshielded', because we've seen little or no difference. I've a noisy "H" environment so shielding made absolutely no difference for me. Others have required shielding for electric fields. You have to determine what your environment requires.
Shielding won't hurt, but isn't always necessary. Many of us also do not have 'ferrites' outside... many use them inside. E field probe and preamp MUST be outside, away from structures and noise, and a few meters above the earth.... and there is no shielding required, or effective.

Mike


Stations: 689, 791, 1439, 3020
Reply


Messages In This Thread
Shielding antennas - by orion_jb2001 - 2015-01-11, 14:39
RE: Shielding antennas - by cutty - 2015-01-11, 15:12
RE: Shielding antennas - by orion_jb2001 - 2015-01-11, 15:35
RE: Shielding antennas - by cutty - 2015-01-11, 17:37
RE: Shielding antennas - by orion_jb2001 - 2015-01-11, 18:33
RE: Shielding antennas - by cutty - 2015-01-11, 23:57

Possibly Related Threads…
Thread Author Replies Views Last Post
  Shielding Alanpenwith 1 11,447 2017-10-22, 10:36
Last Post: readbueno
Photo H field ferrite shielding orion_jb2001 5 31,824 2015-01-30, 03:58
Last Post: orion_jb2001
  Ferrite Rod Antenna Shielding Dave.Auld 4 31,613 2014-08-18, 08:58
Last Post: Dave.Auld

Forum Jump:


Users browsing this thread: 1 Guest(s)