This miniature cavity diplexer accepts high power 900 MHz GSM and 1.8 GHz DCS signals. Model W9190D eliminates the need for two tower feed cables at the base station. Covering the full DCS and GSM bands with < 0.3 dB of insertion loss, with enhanced isolation > 65 dB between bands. Return loss is better than -17 dB all ports. RF Power capability is > 250 watts. Standard 7/16 connectors with type N optional. Size is 3 inches× 6 inches× 1.5 inches.