# Parameters for Source Block

**URL:** <https://www.ruby-forum.com/t/parameters-for-source-block/242072>\
**Category:** GNU Radio\
**Created:** [May 25, 2015, 2:05am UTC](https://www.ruby-forum.com/t/parameters-for-source-block/242072 "2015-05-25T02:05:58Z")\
**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:** [May 25, 2015, 2:05am UTC](https://www.ruby-forum.com/t/parameters-for-source-block/242072/1 "2015-05-25T02:05:58Z")

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Got the source block working. Thanks for the help. Is there a standard  
way to add parameters to a source block? I notice in gnuradio-companion  
you can right click on the block and it has parameters that are settable  
for that block. I need to reference external parameters such as  
frequency  
and sample rate also.

Thx,  
Y-