# Pccc encoder

**URL:** <https://www.ruby-forum.com/t/pccc-encoder/241423>\
**Category:** GNU Radio\
**Created:** [April 6, 2015, 10:15pm UTC](https://www.ruby-forum.com/t/pccc-encoder/241423 "2015-04-06T22:15:40Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![musicdenotation](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/m/ea666f/32.png) [@musicdenotation](https://www.ruby-forum.com/u/musicdenotation)\
**Post date:** [April 6, 2015, 10:15pm UTC](https://www.ruby-forum.com/t/pccc-encoder/241423/1 "2015-04-06T22:15:40Z")

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Hello.

i`m new at this. First i apologize for my english. I`m trying to use the pccc encoder but i`m having troubble with the  
interleaver parameter. My flow graph:

vector source --\>pccc encoder --\>chunks to symbols --\>pccc decoder combo

Some parameters:  
fsm1=fsm2= 1,3,[13,11]  
symbol table= -7,0, -5,0, -3,0, -1,0, 1,0, 3,0, 5,0, 7,0, 0,-7,0,  
-5,0,  
-3,0, -1,0, 1,0, 3,0, 5,0, 7,0  
i set the block size and block length on the pccc encoder and pccc  
decoder  
combo according to the length of the vector source, but i`m really not  
sure.

I also would like to know wich could be te block size if the source is a  
sine wave.

Thank you very much. Ihope an answer