The PEM1800 from AWT Global is a PIM Analyzer with TX Frequeny 1.805 to 1.88 GHz, RX Frequency 1.71 to 1.785 GHz, Transmitter Freq. Accuracy ±2 ppm, Tx Carrier Power 20 to 44 dBm, Transmitter Power Accuracy ±0.35 dB. Tags: Bench Top. More details for PEM1800 can be seen below.