Scheme for System Checks

The two tests, i.e, correlator tests for stable fringes and receiver deflection tests to find out whether the receivers show expected deflections are important and fundamental. Even when all antennas are working satisfactorily, correlator and the receiver tests are essential, particularly to compare this with forthcoming feed rotation to same frequency band. It is preferable for these tests to be done after the pointing correction.

Scheme for System Checks

  • The results of weekly Post Maintenance Quality Checks PMQC are kept here.The 30to1 deflection values at the IF output and plots, pointing plots and offset values and sensitivity measurements at the correlator output will be made available. In addition,if other tests such as the Front End terminated test to look for spurious spikes, polarization isolation, Tsys measurements will also be put as and when the tests are done.

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