Fringe stopping and fractional sample time correction is done in the hardware. The design of the correlator for the second side-band is in progress. The control software is working satisfactorily. Although not in its final compact form, software for acquiring data, integrating in the memory and writing into data files have been developed. Programmes which maintain the delay and fringe corrections have been found to be working satisfactorily.
Work is under progress to integrate the software into one package.
The software is also being tested. Continuum refers to either one channel or collapsing of several channels. Most of these observations have been done in the 325 MHz band. Once the continuum is subtracted from the spectral line cube, the image noise characteristics at 325 MHz are seen to improve. The rms noise in the 325 MHz cube differs from the expected noise by only a factor of two which is very encouraging.