Jammer with allowed frequency

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: [email protected]
Skype: tsarik-108
web: www.bridgecommunication.co.uk