The PEM1900 from AWT Global is a PIM Analyzer with TX Frequeny 1.93 to 1.99 GHz, RX Frequency 1.85 to 1.91 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 PEM1900 can be seen below.