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Detection of narrow spectral features using RASDR2 and the NRAO 20m telescope
P. Oxley, D. Fields, B. Vacaliuc, C. Lyster and F. Ghigo
Roane State Community College
276 Patton Lane
Harriman, TN 37748
Identification and accurate spectral characterization of a narrow L-band spectral feature from a celestial source is a necessary first step in showing the importance of a Doppler (velocityinduced) frequency shift due to the Earth’s rotation. This goal was mentioned at the 2014 SARA conference  . With the assistance of NRAO staff, we have integrated RASDR2   with the NRAO 20m radio telescope  and have demonstrated detection of a suitable narrow spectral feature. Analysis of the complete 24h data set to show the spectral shift due to planetary Doppler shift will be discussed in a future paper.
RASDR2 was controlled by RASDRViewer software  running under Windows 7.
RASDRViewer performed receiver control, FFT analysis, spectrum averaging, power monitoring and other functions. The local computer was connected via the Internet to a remote computer, with both computers running Remote Desktop. The remote computer or an adjacent laptop computer was also used to control the 20m radio telescope using SkyNet .