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, $f_{\rm k}$ and $\alpha$, $\beta$, 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; $f_{\rm k}$, $\alpha$are the 1/f knee frequency and slope respectively; $\beta$ 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).


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