# Fwd: Video Streaming Issue (most probably at receiving end)

**URL:** <https://www.ruby-forum.com/t/fwd-video-streaming-issue-most-probably-at-receiving-end/238896>\
**Category:** GNU Radio\
**Created:** [February 3, 2014, 4:55pm UTC](https://www.ruby-forum.com/t/fwd-video-streaming-issue-most-probably-at-receiving-end/238896 "2014-02-03T16:55:58Z")\
**Posts on this page:** 3\
**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:** [February 3, 2014, 4:55pm UTC](https://www.ruby-forum.com/t/fwd-video-streaming-issue-most-probably-at-receiving-end/238896/1 "2014-02-03T16:55:58Z")

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Hi,

Again, I did some more work and the details are as under.

1. I have created a single flowgraph without USRP hardware. For your  
reference the file is enclosed with the name of  
gmsk\_file\_transceiver.grc.  
This work fine and we can see the stream video output without any  
difficulty.

2. To continue further I splitted the above mentioned file into  
transmitter  
and receiver side along with the inclusion of USRP source and sink  
blocks,  
respectively. Their flowgraphs are enclosed with the name of gmsk\_tx.grc  
and gmsk\_rx.grc, respectively. The FFT plot shows that (vdo  
transmission.png enclosed) transmitter and receiver handshakes with each  
other but the signal difference between the transmitter and the receiver  
side is 80 dB. I further noticed that whenever I stopped the  
transmission  
the received signal at the receiver further drops to -120 dB.

I really get stuck in this issue for the last two days. I need your  
assistant to resolve this problem as I am a newbie in gnuradio using  
USRP  
platform.

Thanks in advance.

Regards,  
Syed Aqeel R.

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**Author:** ![syed](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/s/a88e57/32.png) [@syed](https://www.ruby-forum.com/u/syed)\
**Post date:** [February 3, 2014, 5:17pm UTC](https://www.ruby-forum.com/t/fwd-video-streaming-issue-most-probably-at-receiving-end/238896/2 "2014-02-03T17:17:40Z")

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The signal level on the transmitter FFT seems very high.  
Make sure that the IQ samples sent to the USRP are  
not being clipped.

Ron

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**Author:** ![syed](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/s/a88e57/32.png) [@syed](https://www.ruby-forum.com/u/syed)\
**Post date:** [February 4, 2014, 8:16am UTC](https://www.ruby-forum.com/t/fwd-video-streaming-issue-most-probably-at-receiving-end/238896/3 "2014-02-04T08:16:49Z")

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Hi Ron,

Thanks for your suggestion. It works for me 🙂

Regards,  
Syed Aqeel R.