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Table 4

Receiver characteristics.

ν λ Δν T sys FWHM Feeds Polarisation Aperture efficiency
(GHz) (mm) (GHz) (K) (′′) (%)

2.64 110 0.1 17 260 1 LCP, RCP 58
4.85 60 0.5 27 146 2 LCP, RCP 53
8.35 36 1.2 22 82 1 LCP, RCP 45
10.45 28 0.3 52 68 4 LCP, RCP 47
14.60 20 2.0 50 50 1 LCP, RCP 43
23.05 13 2.7 77 36 1 ... 30
32.00 9 4.0 64 25 7 LCP 32
43.05 7 2.8 120 20 1 ... 19
86.24 3 8.0 (1 GHz used) ~65a 29 1 HLP, VLP 63
142.33 2 4.0 (1 GHz used) ~65a 16 1 HLP, VLP 57

Notes. The entries in each column is as follows: 1) central frequency; 2) receiver bandwidth; 3) system temperature; 4) sensitivity; 5) full width at half maximum (FWHM); 6) number of available feeds; 7) available polarisation channels; 8) telescope effective area at the corresponding frequency.

(a)

The values quoted for the IRAM receivers are typical values for the receiver temperatures Trx and not system temperatures, hence they do not include atmospheric contributions, background emission, etc.

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