The 5354A Automatic Frequency Converter Module translates not only the microwave signal but all its modulation directly to the 500MHz window of the 5345A Counter, extending its range 4GHz. The 5354A allows signals with a large amount of FM to be easily characterized. Perhaps even more powerful is its ability to take direct measurements on the carriers of very narrow microwave pulses. Pulse measurements can be easily automated. Sensitivity: -10 dBm auto mode, -20 dBm typical Manual/Pulse mode to 20 dBm.