# Problem of Frame Synchronization

**URL:** <https://www.ruby-forum.com/t/problem-of-frame-synchronization/241213>\
**Category:** GNU Radio\
**Created:** [May 19, 2014, 12:41pm UTC](https://www.ruby-forum.com/t/problem-of-frame-synchronization/241213 "2014-05-19T12:41:22Z")\
**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 19, 2014, 12:41pm UTC](https://www.ruby-forum.com/t/problem-of-frame-synchronization/241213/1 "2014-05-19T12:41:22Z")

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Hi all,  
I am using QPSK mod and demod and I have problem with frame  
synchronization means there is always delays in the received data due to  
filters and channel etc. I am using Packet encoder and decoder for frame  
synchronization but it is not working with my flow graph so please  
anyone  
tell me is there any blocks for frame synchronization or any other  
method  
if U know.  
any help will be appreciated

My flow graph is attached with this mail

Regards,  
Irfan U.