Band Pass / Band Reject Duplexer / UHF, 406-512 MHz, 5 MHz Split, 350 Watt, N Female. 1/4 wave bandpass filter Reduces interference, intermodulation, and desensitization Eliminates spurious radiation Copper/silver inner conductors, silver-plated to eliminate corrosion and improve performance. Recommended for areas with a lot of interference. Specifications: Frequency range: 406-512 MHz. Minimal isolation: 75 dB. Impedance: 50 Ω. Maximum power: 350 W. Frequency separation: 5 MHz. Loss by max insertion: 0.8 dB. Cavities: 4 4" by side). Connectors: N Female. Dimensions: 4.17 x 19 x 16.3 in. Weight: 15 lbs. Operating temperature: -40 to +140 ºF. Key Features 406-512 MHz Frequency Range Ideal for FM Applications High Power Handling Capacity up to 350 Watts Minimum 75 dB Isolation Reduces Interference Quarter Wave Cavities With Copper/Bronze Silver Plating Maximum Insertion Loss of Only 0.8 dB Compact 3U Rack Mount Design 4.2 x 19 x 16.3 in