4.1 Feeds and Receivers
The following receivers are available (click on frequencies for detalis) :
Band (Name) |
ν0 (GHz) |
λ (cm) |
Receiver label |
Beam (') |
νLsky (GHz) |
νHsky (GHz) |
Receivers band (MHz) |
Noise temperature (K) |
Configuration | |
N/S | E/W | |||||||||
L | 1.4 | 21 | lhp | 31.0 | 31.3 | 1.35 | 1.45 | 2x80 | 50 | |
L | 1.6 | 18 | llp | 27.5 | 27.6 | 1.595 | 1.715 | 2x80 | 60 | |
S | 2.3 | 13 | ssp or sxp* | 18.6 | 17.3 | 2.20 | 2.36 | 2x160 | 40 | Coxial 8.3 GHz |
C | 5 | 6 | ccc | 7.50 | 7.40 | 4.30 | 5.80 |
2x400 2x800 |
12÷14 | |
C | 6 | 5 | chc | 7.00 | 6.50 | 5.90 | 7.10 | 2x400 | 57 | |
X | 8.3 | 3.6 | xxp or sxp* | 4.80 | 5.00 | 8.18 | 8.98 | 2x800 | 25 | Coaxial 2.3 GHz |
K | 22 | 1.3 | kkc | 1.80 | 1.80 | 18.0 | 26.5 | 2x2000 | 20÷30 |
Tab. 4.2 : Receivers parameters
*Name related to the coaxial use
Primary Focus |
Cassegrain Focus |
νLsky ÷
νHsky
:
receiver RF band
The receiver labels have been assigned for identification purpose only (the letters p and c stand for primary and Cassegrain focus, respectively).
The actually exploitable bandwidths may be narrower than the listed ones, due to the presence of RFI.
Multifrequency observations can be carried out
with quick receiver changes (frequency agility).