From a test last night at C-band, I see that the following antennas
are claimed to have Tcal = 0.000:
Antenna 14, all four IFs
Antenna 16, BD (not unreasonable -- this antenna is the only one
remaining in the array with 'old style' OMTs.
Antenna 23, all four IFs
Why are 14 and 23 missing reasonable Tcal values?