Wireless technology giant Motorola Inc. fell victim yet again of the global telecommunications slowdown, posting its third consecutive quarterly loss Tuesday as it continued its struggle to boost profitability.

The company, based in Schaumburg, Ill., posted a third-quarter operating loss of $153 million, or 7 cents a share -- in line with forecasts. The loss compared with a profit of $643 million, or 28 cents a share, in the year-ago period.

Analysts had expected Motorola to lose 7 cents a share, with estimates of the loss ranging from 6 cents to 10 cents, according to Thomson Financial/First Call.

Sales in the quarter ended Sept. 29 dropped to $7.41 billion from $9.49 billion last year.

Motorola said last month it would post a third-quarter operating loss of 5 to 8 cents a share. It also said sales would be flat with the second quarter's $7.5 billion due to weak wireless network equipment and semiconductor markets.

Reuters contributed to this report.