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-rw-r--r--gr-digital/python/gfsk.py9
1 files changed, 7 insertions, 2 deletions
diff --git a/gr-digital/python/gfsk.py b/gr-digital/python/gfsk.py
index c85fdf0e00..9ec477648e 100644
--- a/gr-digital/python/gfsk.py
+++ b/gr-digital/python/gfsk.py
@@ -32,6 +32,11 @@ import numpy
from pprint import pprint
import inspect
+try:
+ from gnuradio import filter
+except ImportError:
+ import filter_swig as filter
+
# default values (used in __init__ and add_options)
_def_samples_per_symbol = 2
_def_sensitivity = 1
@@ -94,7 +99,7 @@ class gfsk_mod(gr.hier_block2):
#sensitivity = (pi / 2) / samples_per_symbol # phase change per bit = pi / 2
# Turn it into NRZ data.
- self.nrz = gr.bytes_to_syms()
+ self.nrz = digital.bytes_to_syms()
# Form Gaussian filter
# Generate Gaussian response (Needs to be convolved with window below).
@@ -107,7 +112,7 @@ class gfsk_mod(gr.hier_block2):
self.sqwave = (1,) * samples_per_symbol # rectangular window
self.taps = numpy.convolve(numpy.array(self.gaussian_taps),numpy.array(self.sqwave))
- self.gaussian_filter = gr.interp_fir_filter_fff(samples_per_symbol, self.taps)
+ self.gaussian_filter = filter.interp_fir_filter_fff(samples_per_symbol, self.taps)
# FM modulation
self.fmmod = gr.frequency_modulator_fc(sensitivity)