Trying to help a friend with a bad electric line noise problem. He has built the VK5TM canceller and it works as advertised. Problem is too much cancellation of the desired signal as well. I suggested he needed a small puny antenna that would receive the noise much more than the desired signal. The offending HT line only runs about about 10ft away from his second-story roof and his real antenna is about 30 ft away. I suggested placing the noise antenna as close to the offending line as possible. Hoping that's enough introduction...what would be the 'best' antenna configuration for receiving the noise and being poor with received signals? A few feet of wire laying on the roof? Some sort of directional loop?