# Setting Intermediate Frequency in Python

**URL:** <https://www.ruby-forum.com/t/setting-intermediate-frequency-in-python/235408>\
**Category:** GNU Radio\
**Created:** [June 20, 2013, 8:59am UTC](https://www.ruby-forum.com/t/setting-intermediate-frequency-in-python/235408 "2013-06-20T08:59:27Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![alcina](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/a/a587f6/32.png) [@alcina](https://www.ruby-forum.com/u/alcina)\
**Post date:** [June 20, 2013, 8:59am UTC](https://www.ruby-forum.com/t/setting-intermediate-frequency-in-python/235408/1 "2013-06-20T08:59:27Z")

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I am using this code to set an intermediate frequency in Python  
platform:

usrp = uhd.usrp\_source(device\_addr = addr, io\_type =  
uhd.io\_type.COMPLEX\_FLOAT32, num\_channels = 1)

usrp.set\_rx\_freq (0, 1.03e9)

but I am getting an error as:

AttributeError: ‘uhd\_usrp\_source\_sptr’ object has no attribute  
‘set\_rx\_freq’

But i saw this in some USRP documents. Is this an old and out of use  
code? How can I set the IF.

(My purpouse of using IF is cancelling the unreal center  
peak.[Re: [Discuss-gnuradio] nonexisted peaks USRP N210 Connection](http://lists.gnu.org/archive/html/discuss-gnuradio/2012-08/msg00032.html))

Sema

---

<div class="post-metadata">

**Author:** ![sema](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/s/35a633/32.png) [@sema](https://www.ruby-forum.com/u/sema)\
**Post date:** [June 20, 2013, 2:54pm UTC](https://www.ruby-forum.com/t/setting-intermediate-frequency-in-python/235408/2 "2013-06-20T14:54:41Z")

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