The PiMPro Tower 1900 from Communication Components Inc is a PIM Analyzer with TX Frequeny 1.93 to 1.99 GHz, RX Frequency 1.87 to 1.91 GHz, Transmitter Freq. Accuracy < 5 ppm, Tx Carrier Power 24 to 46 dBm × 2 (250 mW to 40 W × 2), Transmitter Power Accuracy 0.3 dB. Tags: Portable. More details for PiMPro Tower 1900 can be seen below.