[RFI] Noise cancellers....

[Jerome Schatten]

@Jim Brown..

What you say is of course true -- you can only kill one at a time. That 
said, you can often times choose your target, by adjusting the phasing.  
Getting rid of the most offensive noise source will usually allow you to 
be reasonably operational again -- my goal.

If you use two antennas that are both capable of good tx performance, 
then you have an additional weapon: switching the two antennas around. 
You can do this by installing a dpdt switch in the unit and doing a 
little rewiring.

The main PITA with cancellers is the time you spend getting the 
adjustments right.

Out Dammed Noise!

jerome - va7vv


On 14-03-21 11:20 PM, Jim Brown wrote:


[...]
>
> Note that ANY noise canceller can only work on noise arriving from one 
> direction at a time. If you have multiple sources, you can kill only 
> one of them at a time.
>
> 73, Jim K9YC
>
>
> _______________________________________________
> RFI mailing list
> RFI at contesting.com
> http://lists.contesting.com/mailman/listinfo/rfi
>