KEYSIGHT's N9936A-208 option 208 enables a power measurement versus frequency. The power is measured using a USB power sensor. FieldFox's source frequency can be set independently from the power sensor (receiver) frequency. The frequency of both the source and receiver are swept and the two track each other. The offset frequency can be negative, zero, or positive.Field-upgrade option 302, USB power sensor support, is a prerequisite.…KEYSIGHT's N9936A-208 option 208 enables a power measurement versus frequency. The power is measured using a USB power sensor. FieldFox's source frequency can be set independently from the power sensor (receiver) frequency. The frequency of both the source and receiver are swept and the two track each other. The offset frequency can be negative, zero, or positive.Field-upgrade option 302, USB power sensor support, is a prerequisite. You must order option 302 if you want option 208.*This is the field-upgrade version. For factory-installed options, please see a sales representative for a customized unit. Read More