4. Radisys ( RSYS) is a provider of embedded wireless infrastructure solutions deployed in telecom, aerospace, defense and public safety applications. Its solutions are used in a broad range of 3G and 4G network applications that support the aerospace, defense and public safety sectors.

All the six analysts covering the stock rate it a buy. The stock' average 12-month price target is $9.70, about 97.3% higher than the current price, a Bloomberg consensus shows.

For 2011 third quarter, the company reported revenue of $97.9 million, up 30.2% in the same period fiscal 2010. The company's Next-Generation Communications Networks product revenue stood at $53.6 million, up 74% from the same quarter last year.

In December, the company announced performance enhancements to its Trillium Femtotality solution. Also, three company directors purchased 59,772 shares during the month in the price range of $4.21 to $4.35.

For fiscal 2011, the company's total non-GAAP revenue guidance is $329 million to $335 million, up 16% to 18% over 2010. Meanwhile, Next Generation Communication Networks non-GAAP revenue is expected to grow by 20%.

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