# Variable sink in GRC

**URL:** <https://www.ruby-forum.com/t/variable-sink-in-grc/223043>\
**Category:** GNU Radio\
**Created:** [September 20, 2012, 5:17am UTC](https://www.ruby-forum.com/t/variable-sink-in-grc/223043 "2012-09-20T05:17:10Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![aris](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/a/258eb7/32.png) [@aris](https://www.ruby-forum.com/u/aris)\
**Post date:** [September 20, 2012, 5:17am UTC](https://www.ruby-forum.com/t/variable-sink-in-grc/223043/1 "2012-09-20T05:17:10Z")

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hi guys

i want to use variable sink block in GRC but i can`t find the block,  
could you tell me how i find that?

please help me …

thanks before

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**Author:** ![widya\_agsari](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/w/e36b37/32.png) [@widya\_agsari](https://www.ruby-forum.com/u/widya_agsari)\
**Post date:** [September 20, 2012, 2:47pm UTC](https://www.ruby-forum.com/t/variable-sink-in-grc/223043/2 "2012-09-20T14:47:31Z")

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Hi!

Use Probe Sink and Function Probe blocks.

Martin