Model AM1650DC836 is a directional coupler from Anatech Electronics with 13-dB coupling from 800 to 2500 MHz. It maintains +/-1 dB flatness across the frequency range with maximum insertion loss of 0.5 dB. It is designed to handle maximum nominal input power of 40 dB and provides at least 33 dB isolation between ports. The coupler, with a maximum VSWR of 1.20:1, achieves two-tone (+43-dBm tones) intermodulation-distortion (IMD) performance of -140 dBc. The coupler measures 4.2 x 1.4 x 0.9 in. and is supplied with Type N connectors.