A method up-link fade control for a satellite not having AGC, includes the steps of determining characteristics for correcting channel non-linearity, each characteristic being determined for a different value of up-link fade. The assembly includes fan housing connected to the building via a duct. below the sufficient temperature to dissolve at a pH of about 7 an equivalent concentration of lactose in water to the concentration of lactose to water that is in the untreated CWP.