cmode 1 cmode 1 lnkndasq /cmd3 "lnkndasq" subar 4 /cmd3 "subar 2" goout gosacout /cmd3 "goout" /cmd3 "gosacout" addlist '/odisk/gtac/src.list' addlist '/odisk/gtac/source/atnf_psr_updated.list' *** Scan at the target source replace PSR by the source name *** * gts'PSR' gts 'J0332+5434' sndsacsrc(1,12h) sndsacsrc(1,12h) stabct /(gotosrc 10m 4) strtndasc time 2s * runsubband-cd-bm1.pl bandwidth lowest_freq output_subbands DM input_subbands band_flag /runsubband-cd-bm1.pl 200.0 300.0 1024 26.76 2048 -1 /time 10s * write-cd-bm1.pl output_subbands time_integ duration dataarea filename /write-cd-bm1.pl 1024 4 3600 data6 J0332+5434_500_200_1024_4.raw0 time 3600s stpndasc time 2s *** Details of data recording command *** Step 1: do coherent dedisp *** runsubband-cd-bm1.pl bandwidth lowest_freq output_subbands DM input_subbands band_flag *** 1st entry : band width in MHz (e.g. 200 ) *** 2nd entry : lowest frequency of band (e.g 300 for 500-300) *** 3rd entry : output number of subbands (e.g. 1024 frequency channels) *** 4th entry : DM of the pulsar in pc/cc (e.g. 26.76) *** 5th entry : input number of subbands (e.g. 2048 frequency channels) *** 6th entry : band_flag (e.g. for LO>RF, -1 for inverted band) *** Above configuration will generate 1024 output frequency channels *** Example : runsubband-cd-bm1.pl 200.0 300.0 1024 26.76 2048 -1 *** Step 2 : write the CD output (16 bit recording) *** write-cd-bm1.pl output_subbands time_integ duration dataarea filename *** 1st entry : output number of subbands (e.g. 1024 frequency channels) *** 2nd entry : time integration factor (e.g. 4,8,16..) *** 3rd entry : observation duration in sec (e.g 3600 s) *** 4th entry : data area (e.g. data4) *** 5th entry : filename (keep short) *** This will write 1024 channels at 40.96 micro sec time resolution *** Example : write-cd-bm1.pl 1024 4 3600 data4 J0332+5434_CDP_400_200_1024_4.raw0 /bell end