# Phase shift block

**URL:** <https://www.ruby-forum.com/t/phase-shift-block/234046>\
**Category:** GNU Radio\
**Created:** [February 2, 2015, 5:22pm UTC](https://www.ruby-forum.com/t/phase-shift-block/234046 "2015-02-02T17:22:17Z")\
**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:** [February 2, 2015, 5:22pm UTC](https://www.ruby-forum.com/t/phase-shift-block/234046/1 "2015-02-02T17:22:17Z")

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Hi,  
Application Note “Synchronization and MIMO Capability with USRP Devices”  
from Ettus includes a “phase\_shift” block in Figure 5. Whatever happend  
to that block? Can’t find it, did it get replaced?

Regards  
Johannes

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<div class="post-metadata">

**Author:** ![jst](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/j/edb3f5/32.png) [@jst](https://www.ruby-forum.com/u/jst)\
**Post date:** [February 2, 2015, 5:37pm UTC](https://www.ruby-forum.com/t/phase-shift-block/234046/2 "2015-02-02T17:37:10Z")

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On 02/02/2015 11:20 AM, Johannes S. wrote:

> Hi,  
> Application Note “Synchronization and MIMO Capability with USRP  
> Devices” from Ettus includes a “phase\_shift” block in Figure 5.  
> Whatever happend to that block? Can’t find it, did it get replaced?
> 
> Regards  
> Johannes
> 
> * * *

I’ll observe that a multiply-const block can be used to effect a  
phase-shift on complex samples.

make the “constant”  
math.complex(math.cos(shift\_in\_radians),math.sin(shift\_in\_radians))

–  
Marcus L.  
Principal Investigator  
Shirleys Bay Radio Astronomy Consortium

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