| Technical indicators:Working frequency: 1.0GHz-13GHzModulation mode: Microwave FM direct lock-inFrequency steady: 1×10-4Transmission and receiver antenna configuration: Screw diameter antenna or the grid plate parabolic antennaDifferential gain(DG): ≤3%Differential phase(DP): at the range of ±3 Transmission image indicators: ≥Level 4Sound signal to noise ratio: better than 50dB | 
