9cm primary focus receiver (2860-3580 MHz)
This system is mainly used for spectroscopy observations. It has a feed with one linear polarization.

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
2.900 A linear 6.8 38 1.55 25 57 2.1 76 266 Sep 2009
3.000 A linear 6.7 37 1.55 24 56 2.1 74 256 Sep 2009
3.100 A linear 6.3 33 1.55 21 57 2.0 76 251 Sep 2009
3.350 A linear 5.7 34 1.55 22 56 2.1 74 227 Sep 2009
3.450 A linear 5.5 34 1.55 22 56 2.1 74 221 Sep 2009
3.550 A linear 5.2 30 1.55 19 57 2.1 75 217 Sep 2009

normalized Gain curve     (G = A0 + A1·Elv + A2·Elv2) Observed in
A0 = 1.0      A1 = 0.0     A2 = 0.0 Sep 2009

Comments:

  • RFI-situation (in summer 2011): There are several radar systems operating in the frequency range 3000-3400 MHz. Especially between 3200-3400 MHz very strong RFI is to be expected, however, all these systems operate mainly during daytime. Usually there are very few interferences during nighttime and weekends. The range 3400-3600 MHz currently seems to be free of RFI.