Highly suitable for use in base station transceivers, the AM1880-1960D268 surface-mount, mono-block ceramic duplexer specifies a center frequency of 1,920 MHz and a transmit band from 1,850 to 1,910 MHz. Insertion loss is less than 3.4 dB and return loss is at least 11 dB while rejection is at least 49 dB. Insertion loss in the receive band from 1,930 to 1,990 MHz is less than 3.7 dB with a return loss greater than 11 dB and a rejection of at least 54.5 dB. Additionally, the 50? duplexer will handle a RF input power of 2W and measures 4.6 mm x 23 mm x 6.5 mm. ANATECH ELECTRONICS INC., Garfield, NJ. (201) 772-4242.