Description High power base station duplex filters for the 400 – 475 MHz range. The use of large ø125 mm cavities means a high Q, resulting in a very small duplex spacing. The large dimensions also mean a high power rating. High frequency stability on temperature and power. Mounting brackets for 19” mounting included. Please specify the frequencies for Tx and Rx when ordering. Specifications Electrical Model DPF 70/22-125 DPF 70/33-125 Frequency 400 – 470 MHz 400 – 470 MHz Max. Input Power 250 W @ 1 dB IL 250 W @ 1.5 dB IL Min. Duplex Spacing 0.5 MHz 0.5 MHz Insertion Loss 0.5 MHz < 2.5 dB 2 MHz < 2.0 dB 0.5 MHz < 2.5 dB 2 MHz < 2.0 dB Impedance 50 Ω 50 Ω Attenuation 0.5 MHz > 45 dB 2 MHz > 60 dB 0.5 MHz > 50 dB 2 MHz > 75 dB VSWR < 1.5:1 < 1.5:1 Mechanical Connection(s) N(f) N(f) Dimensions 260 x 483 x 300(400) mm / 10.24 x 19.01 x 11.81 (15.75) in. 260 x 483 x 300(400) mm / 10.24 x 19.01 x 11.81 (15.75) in. Weight Approx. 7 kg / 15.43 lb. Approx. 8.6 kg / 18.96 lb. Environmental Operating Temperature Range -30°C to 60°C -30°C to 60°C Frequency Stability 0.8 ppm/° C (approx.) 0.8 ppm/° C (approx.) Diagram and Mounting Typical response curves @ 2 MHz Duplex Spacing Typical response curves @ 2 MHz Duplex Spacing
