The research laboratory you work in is less than a block away from the transmitting antenna of a radio station that broadcasts at \(1100 \mathrm{kHz}\). You notice that every piece of equipment in the lab has \(1100-\mathrm{kHz}\) noise in addition to the signals you want, which are in the range from \(2 \mathrm{kHz}\) to \(5 \mathrm{kHz}\). You wonder if there is some sort of simple circuit you could add to the lab equipment that would allow your desired frequencies to pass through without much loss, while reducing the \(1100-\mathrm{kHz}\) signal by at least a factor of ten.