# Re: Error in OP25 Decoder block

**URL:** <https://www.ruby-forum.com/t/re-error-in-op25-decoder-block/231240>\
**Category:** GNU Radio\
**Created:** [July 29, 2014, 6:40pm UTC](https://www.ruby-forum.com/t/re-error-in-op25-decoder-block/231240 "2014-07-29T18:40:13Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![addis\_a](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/a/c4cdca/32.png) [@addis\_a](https://www.ruby-forum.com/u/addis_a)\
**Post date:** [July 29, 2014, 6:40pm UTC](https://www.ruby-forum.com/t/re-error-in-op25-decoder-block/231240/1 "2014-07-29T18:40:13Z")

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Max -

Thanks a bunch for the new P25-2 code.

I have been trying to figure out how to compile and use your new .py  
modules to play audio, but I just don’t know enuff Linux to get it done.

I did use the rtl\_sdr app to do the capture and that worked. I have 180  
MB of data.

But I need some guidance on how to get (git?) the last 3 apps -  
arb-resample.py, cqpsk-demod and tdma\_audio installed and ready to run.

I’m sorry to have to ask, but I have tried a lot of stuff and just can’t  
get anything workable.

Doug