REAL number: No visibility at spacings higher than SHORT_UV_MAX is gener- ated. Theoretical consideration on the method used in this task implies that SHORT_UV_MAX should be at most (SHORT_SD_DIAM-SHORT_IP_DIAM). Smaller val- ues may need to be applied if, for example, the pointing accuracy of the Single Dish is insufficient. Default value is 0, meaning to use SHORT_SD_DIAM-SHORT_IP_DIAM