UPDATE 1-MasTec Q1 profit rises; cuts '09 rev outlook

* Q1 shr $0.16 vs. yr-ago $0.12

* Cuts '09 rev view, keeps EPS view

* Sees Q2 results below market expectations

* Shares down 7 pct after the bell

April 29 (Reuters) - Communication and energy infrastructure provider MasTec Inc (MTZ.N) posted a 53 percent rise in quarterly profit, helped by a jump in revenue, but forecast second-quarter results below market estimates.

The company, which also cut its 2009 revenue outlook, posted first-quarter earnings of $11.9 million, or 16 cents a share, compared with earnings of $7.8 million, or 12 cents a share, a year ago.

Revenue rose to $342.1 million, from $262.0 million a year ago.

MasTec forecast second-quarter earnings of 22 cents to 24 cents a share, on revenue of about $375 million.

Analysts on average were looking for earnings of 26 cents a share, before items, on revenue of $453.4 million, according to Reuters Estimates.