1. Operating frequency: 350MHz～470MHz (customized according to needs). 2. Insertion loss ≤4dB. 3. Transmitter port voltage standing wave ratio ≤1.25. 4. Antenna port voltage standing wave ratio ≤1.25. 5. Transmitter branch isolation ≥80dB. 6. Transmitter port and antenna port reverse isolation ≥70dB. 7. Characteristic impedance: 50Ω. 8. Temperature range: -25℃～+65℃.
