Sideband rejection ratio as function of signal frequency. The data from 73 produced Band 5 cartridges have been averaged over polarization channels. The solid black line shows the specification (10 dB) where the receiver sideband rejection ratio must be above for 90% at all IF frequencies within the RF band of 163–211 GHz. The dashed black line shows the specification (7 dB) where the receiver sideband rejection ratio must be above at all frequencies of the 163–211 GHz RF band. The blue solid line is the value averaged over 73 cartridges and blue dash lines indicate 10 and 90%. The light-blue colored area cover all measured values. The upper plot displays the sideband rejection ratio for lower sideband (LSB) and the lower plot - for the upper sideband (USB). The gray arrows in the plot indicate the range of the better performance.