September 15, 1999 Page 5 of 13. 3 Sampling of band-pass signals. 3.1 Introduction. The Nyquist sampling theorem states that to get a unique representation of the frequency. content of a signal, the signal must be sampled at a rate twice the frequency of the highest. frequency component of the signal.
A quarter section, often shortened to quarter, is an area of one-fourth of a square mile, or 160 acres (0.65 km2). It was a common size of a tract under Homestead Acts in the United States and the Dominion Land Survey in Canada.
Many parcels of land are smaller than an entire section. They sometimes are the size of a quarter section. Each section is divided into 4 quarters, each being 1/4 square miles, or 160 acres. Each of the quarter sections is labeled with a quadrant direction.