Table 1:

Calibration test list.

T EST ID	D ESCRIPTION
FUNCTIONALITY
RCA_ AMB	Functional test at ambient
RCA_CRY	Functional test at cryo
TUNING
RCA_TUN	Gain and offset tuning of the DAE
	Tuning of the front end module
	(phase switches and gate voltages)
B ASIC P ROPERTIES
RCA_OFT	Radiometer offset
	measurement
RCA_TNG	Noise temperature and
	photometric gain
RCA_LIS	Radiometer linearity
N OISE P ROPERTIES
RCA_STn	Noise performances tests:
	WN, and , , r
RCA_UNC	Verification of the effect
	of the radiometer switching
	on the noise spectrum
B AND P ASS R ESPONSE
RCA_SPR	Bandpass
SUSCEPTIBILITY
RCA_THF	Susceptibility to
	FEM temperature variations
RCA_THB	Susceptibility to
	BEM Temperature variations
RCA_THV	Susceptibility to V-groove
	temperature variations

Notes. The first column reports the test identification. In the second column the purpose of each test is described; WN is the white noise level; , are the 1/f knee frequency and slope respectively; is the equivalent radiometer bandwidth derived from noise; r is the modulation factor. Apart from the first test RCA_AMB, which is performed at ambient temperature, all the other tests are performed at the operational temperature (i.e. at a temperature as close as possible to in-orbit conditions).