I use an Timewave ANC-4 to reduce noise on the low bands at my location.
On 40 & 160 meters I can reduce the noise almost to S1, but on 75 meters I
can only reduce it to S4-5.
I use a noise sense antenna which is a dipole 4ft on each side about 4
inches off the ground and parallel to the power and telephone lines.
Anyone have one of these units and having any ideas I might try to reduce 75
meters to a lower S-meter reading?

All my low band antennas are verticals.

Stan
AH6JR