Jim Gibson and Jack Welch are putting together the 3mm receiver to do a
calibration at 90 (and probably 100) GHz.  They will measure the flux of
Jupiter and the gain of one of the BIMA dishes in two ways.
1.  The first will be like the measurement that were made at 1cm.  It will
use switches to interchange the standard horn with the feed horn on the
host antenna to get the gain of the host antenna.  Then they will do a
single antenna flux measurement, chopping between two feed horns in the
focal plane of one BIMA antenna with a system temperature measurement
using two loads.
2. In the second scheme, suggested by Stephane Guilloteau, they will
use three or four array antennas and the horn as an array to measure
the gain of one or more of the antennas using something like amplitude
self cal.  Then they will transfer the
system temperature of the standard horn, measured using two loads
that can be put on the horn, to the other antennas and measure the
flux of Jupiter with the array.  They won't know how it will work until they
try it.  The plan is to compare the two methods.  If the second method
works well enough, it can be extended to the shorter wavelengths readily.

They will do these measurments in June.  They must plan for that, because the
BIMA array will be taken down and moved to the CARMA site this summer.