# Noise received

**URL:** <https://www.ruby-forum.com/t/noise-received/244878>\
**Category:** GNU Radio\
**Created:** [June 30, 2016, 6:12pm UTC](https://www.ruby-forum.com/t/noise-received/244878 "2016-06-30T18:12:20Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![Rafa\_F](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/r/958977/32.png) [@Rafa\_F](https://www.ruby-forum.com/u/Rafa_F)\
**Post date:** [June 30, 2016, 6:12pm UTC](https://www.ruby-forum.com/t/noise-received/244878/1 "2016-06-30T18:12:20Z")

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Hi everyone,

I am trying to tx and rx a binary file using USRP B210. The GUI sink at  
transmitters side shows a regular LTE signal. However, at receivers  
side, I am getting a lot of noise and the signal is hardly visible.  
The binary file is generated using openLTE’s lte\_fdd\_dl\_file\_gen.py. The  
file format is gr\_complex.  
I have attached my flowgraph and the scope results as well. Kindly help  
me figure out where am I wrong.  
I was thinking there is something wrong in the file, but then I can see  
it at the transmitters side. So I am assuming it is okay. Also, I tried  
to increase and decrease the tx and rx gain but with very little  
success.  
Any help would be appreciated.  
The binary file generated has the following specs:  
fs=30720000Hz  
band=14  
bandwidth=10MHz  
Thanks,  
Sushree