[Antennas] getting rid of strong QRM ( reception)

[Zacharias Liangas]

Dear frinds 
 
During the recent period an unknown local QRM has been established/appeare=
d  in my area  
that produces a very high QRM level of S9+ 10  across all the SW bands in =
my 16m single 
wire antenna ( a height of 5 m ) .
 My system is a reception only rig. 
This noise seems to be a motor type, as using my receiver�s (R75�) Noise B=
lanker partially 
cancels this noise 
I made another temporary antenna, a dipole of 2 x 13 m which unfortunately=
 is on very low 
heights (only 2.5 m!) with cascaded wires of #14  for the first 6 m then 0=
.1 mm  for the 
remain,   with the one side over trees and the other standing over two TV =
cables . 

QRM is still passed through this antenna, although in several bands the le=
vel is lower ( e.g. 
9 MHz) over a lower gain antenna regarding to the 16m wire . It is also ni=
ce that I use a MFJ 
1025 noise canceller with the dipole as main antenna and the 16m wire as s=
econdary. 

MY problem is that using MFJ 1025 is very critical as changing to several =
kHz all sets 
change. And noise is not always 100 % cancelled 

Does nay other have a better idea  for canceling this noise with antenna o=
nly configuration 
or even if there is something I can put in side of the motor? ( in case I =
find its owner) 


___________________________________________
pen-DX sejak 72 - anggota World-DX-Club 2104,Play DX, dll
PP: R75/HF150/MVT7100/D2935  + 16m/1x1 + MFJ16010/1040/1025/752c/462 
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