Description High power base station duplex filter for the 140 – 175 MHz range. The use of large ø250 mm cavities means a high Q, resulting in a very narrow duplex spacing. The large dimensions also mean a high power rating. Unloaded Q of a single cavity is approx. 8000. High frequency stability on temperature and power. Mounted on 19” brackets. Specifications Electrical Model DPF 2/33-250-WM Frequency 140 – 175 MHz Max. Input Power 300 W @ 1.5 dB IL 150 W @ 3.0 dB IL Insertion Loss 250 kHz @ < 2.0 dB 500 kHz @ < 1.5 dB 750 kHz @ < 1.0 dB Tx Noise Suppression on Rx-Freq. / Rx Isolation on Tx-Freq. 250 kHz @ > 80 dB 500 kHz @ > 90 dB 750 kHz @ > 100 dB Mechanical Connection(s) N(f) Dimensions 510 x 750 x 600 mm / 20.07 x 29.52 x 23.62 in. Weight Approx. 19.2 kg / 42.33 lb. Environmental Operating Temperature Range -30°C to 60°C Frequency Stability 1.5 ppm/° C (approx.) Ordering Designations Model Product No. DPF 2/33-250-WM 200001877 ADD TO QUOTE Typical response curves for 500 kHz Duplex
