Subject: ant1f feed swap

(was empty, no feed)

Feed S/N: SB-039

  1. Can communicate with feed after install, atagetcryotemp/atagetlnas
  2. LNA settings:
    1. X-pol: vg 0.27  vd 1.5  vm -0.8  id 63.0
    2. Y-pol:  vg 0.06  vd 1.5  vm -0.8  id 61.8
  3. Cryo: 126.4 @ 1123 03 Apr 2012
    1. 62.0 @ 1212 03 Apr 2012
    2. Note, mounting issue required twice as much time to mount feed, 40minutes vs 20minutes
  4. Spectrum analyzer, confirmed hookup to FXA, reseat sma connectors
    1. Power on sats, not at where I expected to see power.../attenuation PAM settings change power levels.
  5. spectra - xx,yy look good on autocorrelations, attached.
  6. interferometry - xx,yy phases good against other antennas

 

 
AttachmentSize
1f-xx-yy-spec-gps-prn23-03apr2102.pdf124.69 KB
1f-xx-yy-uvs-gps-prn23-03apr2102.pdf3.14 MB