# Jammer with allowed frequency

**URL:** <https://www.ruby-forum.com/t/jammer-with-allowed-frequency/242028>\
**Category:** GNU Radio\
**Created:** [May 21, 2015, 2:42am UTC](https://www.ruby-forum.com/t/jammer-with-allowed-frequency/242028 "2015-05-21T02:42:06Z")\
**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 21, 2015, 2:42am UTC](https://www.ruby-forum.com/t/jammer-with-allowed-frequency/242028/1 "2015-05-21T02:42:06Z")

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Hi guys,  
anyone have ideas how to implement next scenario:

I need to RX signal on freq 150 Mhz +200 khz but need to jam all signal  
around this freq,  
means from 145 Mhz to 150 Mhz and from 150.2 Mhz to 155 Mhz should be  
gaussian noise there.  
Any ideas ?  
Would it possible with 1xUSRP or 2xUSRP needed for this?  
What about implementation?

Many thx.

Sincerely Yours,  
Tsaregorodtsev Yury  
Bridge Communication Billing & Settlement Plan Limited  
Fernhills Business Center, Foerster Chambers,  
Todd Street Bury, Gtr Manchester, BL9 5BJ  
United Kingdom  
Tel: +441570200000  
ICQ: 622719210  
MSN: removed\_email\_address@domain.invalid  
Skype: tsarik-108  
web: [www.bridgecommunication.co.uk](http://www.bridgecommunication.co.uk)