EDO Corporation has received contracts for a total of 273 AN/PLM-4 flight-line test units. The largest order was from the U.S. Air Force, plus certain foreign militaries and other prime contractors. The value of the combined orders is approximately $19.4 million, with delivery to be completed by July 2007.

The EDO AN/PLM-4 is a portable radar-signal simulator designed to test the radar-warning receivers on board approximately 25 types of fighter jets and military aircraft. It has become the U.S. Air Force's most effective way of testing the radar-warning systems before takeoff, as well as during routine maintenance. In addition to the flight-line version, the radar-signal simulator is available in configurations for laboratory, shipboard and vehicle testing.

The AN/PLM-4 is significantly smaller and lighter than previously available equipment. It handles the full range of necessary tests in one self-contained package, a substantial benefit in an operating environment where speed is critical. Since this product line was introduced in 1998, EDO has received orders for more than 950 systems in various configurations from both foreign and domestic customers. To date, more than 700 of these systems have been delivered.

EDO Corporation designs and manufactures a range of products for defense, intelligence and commercial markets. With headquarters in New York, EDO Corporation employs 4,200 people worldwide. The company was founded in 1925 and had revenues of $648 million in 2005.