How to use constellation decoder

GNU Radio
1

Hi,

I am struggling to use the constellation decoder. I saw this post, but
it
does not work for me.

http://gnuradio.4.n7.nabble.com/Constellation-Decoder-GRC-Help-td36508.html#a34137043

from gnuradio import digital
digital.constellation_decoder_cb(digital.constellation_bpsk())
Traceback (most recent call last):
File “”, line 1, in
File
“/usr/local/lib/python2.7/dist-packages/gnuradio/digital/digital_swig.py”,
line 4864, in constellation_decoder_cb
return _digital_swig.constellation_decoder_cb(*args, **kwargs)
TypeError: in method ‘constellation_decoder_cb’, argument 1 of type
‘digital_constellation_sptr’

Any help would be appreciated, I am using GNURadio 3.6.5.

Regards,

Stephen

2

On Tue, Jun 25, 2013 at 3:44 PM, Stephen Harrison
[email protected] wrote:

File “”, line 1, in

Stephen

Try this

python> from gnuradio import digital
python>
digital.constellation_decoder_cb(digital.constellation_bpsk().base() )

The base method returns the digital_constellation_sptr that
constellation_decoder_cb is expecting.

-Nathan