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Re: [Discuss-gnuradio] Error while using MPSK Sync block in GRC 3.5.0


From: Tom Rondeau
Subject: Re: [Discuss-gnuradio] Error while using MPSK Sync block in GRC 3.5.0
Date: Sun, 15 Jan 2012 14:03:03 -0500

On Fri, Jan 13, 2012 at 10:37 AM, shashank gaur <address@hidden> wrote:
Hello
I was trying to use the MPSK Sync in GRC 3.5.0 but it seems that there is either no block declared in gr-digital for the same. All I could find was an xml file for the same. Is digital_mpsk_reciever_cc.cc for the block?
If it is then there is no place to declare M and theta. Also no Omega_relative parameter to declare. Although there is a new parameter in the block Relative Phase, is it replacement for the Omega_Relative parameter.
Please help me to understand this doubt
Thanks
Shashank Gaur

I'm confused. The gr_mpsk_receiver_cc has been moved to gr-digital and is now digital_mpsk_recevier_cc. It's public constructor looks like:

DIGITAL_API digital_mpsk_receiver_cc_sptr 
digital_make_mpsk_receiver_cc (unsigned int M, float theta, 
      float loop_bw,
      float fmin, float fmax,
      float mu, float gain_mu, 
      float omega, float gain_omega, float omega_rel);

The setting for M and omega_rel are right there.

There is no set/get functions defined for these parameters, which might be where your question is coming from. It should be possible to add both. Setting the omega_rel this way is easy. To set a new M value, though, would require a total reset of the blocks values because of the different want they are handled.

Tom


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