SMT Receivers


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Heterodyne Receivers

  • SIS ALMA Type 1.3mm: Dual polarization sideband separating mixers, 4 available IF's. See here for detailed description: ALMA Sideband Separating Receiver
     
  • SIS 2mm: Currently this receiver is available for VLBI observations only.
     
  • SIS 0.8mm: The 0.8mm Receiver, covering Sky Frequencies from approximately 315 to 365 GHz, was upgraded in the spring of 2007. The existing hybrid dewar was outfitted with mixer blocks provided by ASIAA that produce a 4-6 GHz IF. The new IF amplifiers are an NRAO design utilized in the ALMA project. The double sideband receiver temperatures measured to date with this instrument vary from 100-150 K. In addition, the baseline stability for spectral line observing has been significantly improved.
     
  • SIS ALMA Type 0.4mm: Dual polarization, (600-720 GHz), now available for general observations. See here for detailed information.

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Last updated: 11/08/11.