RF Micro Devices ( RFMD) reversed a year-ago loss in its first fiscal quarter, thanks to a 50% jump in revenue. The communications chipmaker's results for the just-completed period were essentially in-line with the Street's estimates. For the current, second quarter, the company predicted that while results will likely grow substantially year over year, its sales will likely fall short of analysts' forecasts. Investors sold the stock on the news. In recent after-hours trading, RF Micro shares were down 31 cents, or 5.2%, to $5.65. In the quarter ended June 30, RF Micro earned $13.9 million, or 7 cents a share, on $238.3 million in revenue. In the same period a year earlier, the company lost $2.7 million, or a penny a share, on revenue of $159.4 million. Excluding certain charges including those for stock options, amortization of intangibles and the discontinuation of a product line, the company would have earned $21 million, or about 9 cents a share. The consensus view of analysts polled by Thomson First Call was for a profit of 9 cents a share -- excluding options and amortization costs -- on sales of $239.7 million in the quarter. The company predicted in April that it would earn 5 cents to 7 cents a share -- 8 cents to 10 cents excluding options costs -- on sales ranging from $230 million and $245 million. Looking forward, RF Micro predicted that it would earn 8 cents to 9 cents a share -- 10 cents to 11 cents excluding certain items -- on sales ranging from $240 million to $250 million. Analysts had previously predicted earnings of 11 cents a share on sales of $254.3 million for the period. In the same period last year, the company earned $5.9 million, or 3 cents a share, on $177 million in sales. The company's stock closed regular trading on Tuesday up 43 cents, or 7.8%, to $5.96.