2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/4229Calibrating telescope data is one of the most important issues an observer faces. In this chapter we describe a number of the methods which are commonly used to calibrate radio telescope data in the centimeter wavelength regime. This includes a discussion of the various methods often used in determining the temperature and gain of a telescope, as well as some of the more common difficulties which can be encountered.19 pages, 10 figures. Can also be found at http://www.naic.edu/~koneilAstrophysicstext