1.9cm primary focus receiver (13-18 GHz)
This is a 1-channel broad-band system used for spectroscopy. It has a linearly polarized feed. So far, only few test observations could be made to measure the variation of its parameters with frequency.

Frequency [GHz] Channel Polarisation Tcal [K] Tsys [K] Sensitivity [K/Jy] SEFD [Jy] Aperture Eff. [%] TMB/S [K/Jy] Main Beam Eff. [%] FWHM [arcsec] Last update
13.75 B linear 1.5 35 1.1 32 39 1.8 61 60.3 Mar 2001
15.42 B linear 1.7 37 1.2 32 41 1.8 64 53.5 Apr 2003
18.00 B linear 1.2 46 0.90 51 32 1.7 53 46.5 Mar 2001

normalized Gain curve     (G = A0 + A1·Elv + A2·Elv2) Observed in
A0 = 0.95912     A1 = 2.5000E-3      A2 = -3.8149E-5  Apr 2003

Comments:

  • The values at 15.4 GHz could be derived from cross-scans during spectroscopic observations. Thanks to N. Nagar!
  • Values at 18 GHz are a bit uncertain. Additional tests are needed.