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Fast Fourier Transform Spectrometer (XFFTS)

The Fast Fourier Transform Spectrometer (XFFTS) for Effelsberg is available for observations since late 2011. The backend has 32768 channels in each of the two IF inputs so that for 2 channel receivers both polarisations can be sampled and processed in parallel.

Currently the following modes are available:

BandwidthSpectral channelsEffective Spectral Resolution [kHz] IF
500 32768 17.7 VLBA-IF
100 32768   3.5 VLBA-IF / Narrow-Band-IF
50 65536 0.8 Narrow-Band-IF - special mode
2000 32768 70.8 Special Broad-Band-IF - currently not available

Note, that the effective bandwidths are about 10% smaller due to bandpass issues!

information_for_astronomers/xffts.txt · Last modified: 2014/11/20 16:30 by akraus