self.scope = ra_fftsink.ra_fft_sink_f (self, panel,
fft_size=int(options.fft_size), sample_rate=PULSAR_MAX_FREQ*2,
title="Post-detector spectrum",
self.scope = ra_fftsink.ra_fft_sink_f (self, panel,
fft_size=int(options.fft_size), sample_rate=PULSAR_MAX_FREQ*2,
title="Post-detector spectrum",