A frequency translating device includes at least one mixer diode connected to down-convert a radio frequency to an intermediate frequency and to up-convert an IF to an RF and a source of direct current bias that is connected to the mixer diode. That computer system also having translation functions from protocols used by enterprise devices to and from the protocol of the facility. The result of this measure during the cooling of a panel is a more even temperature distribution over the surface of the panel. A linear circuit interpolatesdecimates an approximation of the compressionexpansion filter coefficient function based on the slope value, the initial discrete value and a preselected set of low order bits of the reciprocal value.