Measured integrated cross-polar (upper panel) and aperture efficiency (lower panel) of the 73 produced Band 5 receiver cartridges vs. signal frequency. The solid black line in each plot shows the ALMA Band 5 specification (for cross-polar purity, lower is better; for aperture efficiency, higher is better). For both plots, the blue solid line is the value averaged over 73 cartridges and blue dash lines indicate 10% and 90%. The light-blue colored area covers all measured values. The gray arrow in each plot points toward the range of the better performance.