6cm secondary focus receiver (4.6-5.1 GHz)
This is a 4-channel system for sensitive continuum, VLBI, and pulsar observations.

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
4.850 A / B LCP / RCP 1.8 27 1.55 18 53 2.4 63 146 June 2008

normalized Gain curve     (G = A0 + A1·Elv + A2·Elv2) Observed in
A0 = 0.97323      A1 = 1.2702E-3      A2 = -1.5059E-5 Mai 2004
A0 = 0.995      A1 = 5.2022E-4      A2 = -1.27874e-05 Feb 2008

Comments:

  • The values for LCP and RCP do not differ significantly.
  • The new gain curve (Feb 2007) was corrected for opacity.
  • If no other information about the opacity is available a typical zenith tau value of about 0.016 should do a good job.