TADB,

Shortwave Listening (SWL) Noise in Urban {Downtown) Location
Anti-Jammimg {Anti-Man-Made-Noise} Shortwave Antenna System

READ ABOUT - Anti-Jamming Shortwave Antenna System
http://groups.google.com/group/rec.r...a3505f90259fd5
http://groups.google.com/group/rec.r...2616c36458bba2
http://groups.google.com/group/rec.r...6435c0abb2763c

http://groups.google.com/group/rec.r...83da4526de200a

Take a Look at this Hard-Core DX webpage.
"Antenna for Reducing SkyWave Interference"
Written by Dr. O. G. Villard, Jr.
http://www.hard-core-dx.com/nordicdx.../reducin1.html
NOTE: This design is for ShortWave "SkyWave" Signal Reception.
AJAS = http://www.rfa.org/english/support/antijamming/

Mike Villard's "Noise Rejecting" Horizontal Loop Antenna (HLA)
- WebPage presented by Michael Toia [K3MT]
HLA= http://users.erols.com/k3mt/hla/hla.htm
[ aka: Anti-Jamming Antenna ]

"Home Brew" Noise Canceling (Anti-Jamming) Antenna
http://groups.google.com/group/rec.r...80c8f9273785e9
http://groups.google.com/group/rec.r...acc78b8e4765c3


hope this helps - iane ~ RHF
..
All are WELCOME and "Invited to Join" the
Shortwave Listener (SWL) Antenna eGroup on YAHOO !
http://groups.yahoo.com/group/Shortwave-SWL-Antenna/
SWL ANTENNAS GROUP = http://tinyurl.com/an6tw