The PEM400 from AWT Global is a PIM Analyzer with TX Frequeny 390 to 400 MHz, RX Frequency 380 to 385 MHz, Transmitter Freq. Accuracy ±2 ppm, Tx Carrier Power 20 to 44 dBm, Transmitter Power Accuracy ±0.35 dB. Tags: Bench Top. More details for PEM400 can be seen below.