Com-Power CGC-255E Comb Generator are a broadband EMC signal source for quick EMC conducted testing. It it used check you entire conducted test setup including LISN, cables, transient limiters and receivers quickly and efficiently. Monitoring a few frequencies or entire range regularly using the Comb Generator's can detect potential problems before it causes erroneous results. This Comb Generator can be plugged directly into EUT power port of the LISNs. The Comb Generators are powered by a rechargeable NimH battery pack to avoid any external interference.