GERMANTOWN, Md. -- Acterna (NASDAQ: ACTR) today announced the most complete, all-in-one tester for efficient installation and maintenance of DWDM systems with the addition of a new optical spectrum analyzer for both C and L bands. The new OSA for the Acterna Media Test Set (MTSe) will be exhibited at COMNET, January 29-31, booth 638, at the Washington Convention Center in Washington, D.C. The optional C- and L-band OSA makes the Acterna MTSe modular test platform the most complete test solution available for verifying DWDM service in both the central office (CO) and outside plant environment. Because the C and L band OSA can be housed on the same instrument simultaneously with the Acterna tri-wavelength OTDR (optical time domain reflectometer), field technicians can reduce the number of test modules they must take into the field. The new OSA tests DWDM channels from 1525 to 1610nm, which include areas of the spectrum currently in use, as well as ones that will be used in the future as demand for DWDM service increases. An economical, lightweight solution, the Acterna MTSe tester provides both OTDR (optical time domain reflectometer) measurements and optical spectrum analysis of fiber on DWDM optical networks. In addition, increased battery capacity powers the MTSe up to 8 hours on a single battery charge. The Acterna MTSe enables field technicians to install, troubleshoot and verify DWDM networks from the fiber to the network element with one instrument. Acterna Corp.