California Microwave Inc, making microwave radios in Milpitas, is looking healthier to Standard & Poor’s Corp, which has revised its outlook on the company’s ratings of to positive from stable. It affirms its double-B-minus on the company’s corporate credit rating, reflecting the company’s solid track record, favourable business prospects and moderate financial policies, tempered by a fairly aggressive growth strategy and the presence of strong competition in a market that’s fragmented.