Topband: Noise cancelling

[Thomas Damboldt]

Hi,

it seems we have the same problem in all large cities. To my understanding the noise is caused by large numbers of halogen lamps, dimmers and other kinds of electronic equipment and is radiated from the extensive powerline network all over the place. This means that even directive antennas (flags, pennnants etc.) will not help as the noise is probably omnidirectional. It would be helpful, however, to use a small receiving antenna (e.g. a loop) and just try to find a "quiet spot" in the area accessible.

Best regards
Thomas, DJ5DT
13 Feb. 2004  

"Art Pope" <ua3vcs at hotmail.com> wrote:
> Hello cancelling,
> 
> 
> I've been trying to solve the noise problem for pretty much as long as I 
> have stayed in BV. In vain. Noise is almost all I can hear on the top. 80 
> meters sounds better but the noise level is normally at about S7 to 9 with 
> pre amp off on IC 737. My ocasional appearance on 80 allowed me to log a few 
> dozens of East Cost/ Mid-West QSOs and a couple of hundreds of EU stations( 
> of course eu path is much more favorable here). My best acheivement on Top 
> is RA1ACJ followed by RN6BN.
> 
> I tried a few things. I do experience serious BCI here which I managed to 
> suppress using CIRQTELL FHT//21 1.8-13 filter(tnx W8LRL). I also installed a 
> flag antenna ( thanks to W8LRL, RW1AC and UA2FZ) yet again to get frustrated 
> with the immense line/ manmade noise still present.
> 
> What do I do now? Should I try one of the noise cancellers available on the 
> market?
> I checked W8JI's article on MFJ-1025/1026 units and also read a few reviews 
> on e-ham.com about both MFJ-1025/1026 and ANC-4.
> 
> Any suggestions?
> 
> 73, de Art bw4/ua3vcs
>