The iPA-0850A from Kaelus is a PIM Analyzer with TX Frequeny1 869-873MHz, TX Frequeny2 885-894MHz, RX Frequency 837 to 849 MHz, Transmitter Freq. Accuracy ± 5ppm (max), aging ± 1ppm (max) after first year, Tx Carrier Power +0.1 to 20W (+20 to +43dBm in 1dB increments). Tags: Portable. More details for iPA-0850A can be seen below.