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Subject: ant1f feed swap
by colby on 3 April 2012 - 11:23am
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(was empty, no feed)
Feed S/N: SB-039
Can communicate with feed after install, atagetcryotemp/atagetlnas
LNA settings:
X-pol: vg 0.27 vd 1.5 vm -0.8 id 63.0
Y-pol: vg 0.06 vd 1.5 vm -0.8 id 61.8
Cryo: 126.4 @ 1123 03 Apr 2012
62.0 @ 1212 03 Apr 2012
Note, mounting issue required twice as much time to mount feed, 40minutes vs 20minutes
Spectrum analyzer, confirmed hookup to FXA, reseat sma connectors
Power on sats, not at where I expected to see power.../attenuation PAM settings change power levels.
spectra - xx,yy look good on autocorrelations, attached.
interferometry - xx,yy phases good against other antennas
Attachment
Size
1f-xx-yy-spec-gps-prn23-03apr2102.pdf
124.69 KB
1f-xx-yy-uvs-gps-prn23-03apr2102.pdf
3.14 MB
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(was empty, no feed)
Feed S/N: SB-039