... See also the NAIC spectrum management page. Note that the full ALFA band covers 1225 to 1525 MHz. ... An example was shown of the OH spectrum of an OH/IR star obtained with 3-level sampling using the present autocorrelator showing lots of ringing. ... But also, we need simple RFI removal software. ... This also relates to the issue of maximum BW: 100 or 200 MHz bandwidth? From my experience, the spectrum seems to be pretty clean out to 1225 MHz, and so there is a case for 200 MHz bandwidth. ...