You will have some success with a properly designed and placed NOISE anenna. You haven't described your setup. Is the broadband noise you are experiencing on 20m-10m coming from local powerlines or is it just atmospheric band noise? I've found the 1026 works better on 40m and 80m with a randome length horizontal wire. In my case 100 feet long, about 20 feet above ground, and 70 feet away from my main antenna which is a G5RV type wire up about 75 feet. With this setup I could null an S9 noise down to an S3. On 40m down to an S6. Day and night makes a difference due to the angle of arrival of atmospherice noise at my location. On the higher bands, 30m through 10m, I could not achive a null at all. Again, these are the results I get only from phase cancelling atmospheric noise, not from powerline (pulse) interference. I have had no success phase cancelling powerline noise when it occurs.