# Working with TCP source/sink

**URL:** <https://www.ruby-forum.com/t/working-with-tcp-source-sink/233203>\
**Category:** GNU Radio\
**Created:** [November 24, 2014, 10:36am UTC](https://www.ruby-forum.com/t/working-with-tcp-source-sink/233203 "2014-11-24T10:36:48Z")\
**Posts on this page:** 2\
**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:** [November 24, 2014, 10:36am UTC](https://www.ruby-forum.com/t/working-with-tcp-source-sink/233203/1 "2014-11-24T10:36:48Z")

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Hi  
I would like to work with transmission of signals with sound card of  
laptop. I would like to know the working of TCP sink/socket . I am  
attaching a transceiver system that i tried from a project published in  
the net. But I couldn’t enter any data at the TCP source, Please help me  
on how this block work…  
Regards  
Sreena

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**Author:** ![sreena\_p\_h](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/s/47e85d/32.png) [@sreena\_p\_h](https://www.ruby-forum.com/u/sreena_p_h)\
**Post date:** [November 24, 2014, 4:21pm UTC](https://www.ruby-forum.com/t/working-with-tcp-source-sink/233203/2 "2014-11-24T16:21:16Z")

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Hi Sreena,  
this is a bit hard to debug like this.  
I smell network problems, possibly firewall-related. Use a network  
sniffer like wireshark to figure that one out 🙂

Greetings,  
Marcus

On 11/24/2014 10:34 AM, sreena p h wrote:

> [Discuss-gnuradio Info Page](https://lists.gnu.org/mailman/listinfo/discuss-gnuradio)

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