The DCS/GSM1800 from AWT Global is a PIM Analyzer with TX Frequeny 1805 to 1880 MHz, RX Frequency 1710 to 1785 MHz, Transmitter Freq. Accuracy 200 ppm, Tx Carrier Power +20 to +44 dBm (46 dBm optional), Transmitter Power Accuracy +/- 0.35 dB. Tags: Bench Top. More details for DCS/GSM1800 can be seen below.