Frequency range 5-1000MHZ. Fully screened RF shielded Zink Die-Cast housing with Nickel Plating and Earth Terminal built in. All Ports are 75ohm F type with low Insertion loss. Screening (dB) 40-470 MHz: >75 470-1000 MHz: >65 1000-2400 MHz: >55 Insertion Loss (dB) 5-40 MHz: 7.0 470-860 MHz: 4.5 1000-2050 MHz: 10.0 2050-2400 MHz: 11.0 Mutual Isolation (dB) 5-40 MHz: 22 470-860 MHz: 22 1000-2050 MHz: 20 2050-2400 MHz: 20 Return Loss (dB) 5-40 MHz: 10 470-860 MHz: 12 1000-2050 MHz: 12 2050-2400 MHz: 12