From a Jamie Stevens email:
As a test, we turned on a tone at 8414 MHz to our LCP vertex radiator, and this tone shows up in the file vx011_Ho_065_131400.lba on hovsi. It looks correct to me - the tone is stronger in IFP#2 than in IFP#1, and the tone appears on the low side of the band in channels 1 and 3 only.