Re: Empty file at File Sink for BPSK mod&demod simulation

[Jeff Long]

... and the packet encoder block has been removed "after long deprecation" according to the Changelog.

On Wed, Jun 24, 2020 at 9:10 AM Jeff Long <willcode4@gmail.com> wrote:

The RRC taps have a sample rate of 32 and the grc file shows samp_rate set to nfilts.

On Wed, Jun 24, 2020 at 6:38 AM Grace Huang <gracehuang1999@gmail.com> wrote:

Hi all,

I'm trying to pass a text file through with a simulated channel model modulated with BPSK. I'm having an issue with not getting any data written on to the text file at the file sink. 

I passed a txt file in with file source block, followed by packet encoder then modulate it with BPSK before passing through the channel model. After that, I used polyphase clock sync, CMA equalizer and costa loop to minimise frequency, noise and time offset and distortion. Finally I proceeded to use constellation decoder, differential decoder, unpack K bits and packet decoder before passing it to file sink.

The exact flow graph can be found on GitHub here: https://github.com/wei1006/HAB

Are there steps that I've missed out or done wrongly?

Please advise

Thank you,

Grace