FT501 Marine Radar SART Search Rescue Transponder Safety System Condition: Item Type: Radar Transponder Material: Plastic Color: As Pictures Shown Frequency range of receiving and transmitting: 9200MHz-9500MHz Antenna Polarization: Horizontal Polarization Horizontal Beam Range: 360 ° Vertical Beam Range: At least ± 12.5 ° relative to the horizontal plane Receiving Sensitivity: Better than -50dBm Equivalent Omnidirectional Radiated Power: ≥400mW Allowable pulse width for transmission: 100μs Reception Prohibited Pulse Width: 105μs-110μs Frequency Sweep Range (Linear Frequency Modulation): 9200MHZ - 9500MHZ Sweep Form: Sawtooth waveform, forward period: 7.5μs ± 1μs Reverse Period: 0.4μs ± 0.1μs Frequency Sweep Repetitions: During the 100μs transmission period, frequency sweep is 12 times Recovery time for receiving subsequent triggers; ≤10μs Response delay time: ≤0.5μs Temperature Range: Working Environment Temperature: -20 ℃ - + 55 ℃ Ambient Storage Temperature: -30 ° C - + 65 ° C Enclosure Protection Level: IP68 Compass Safety Distance: Approx. 50cm / 19.7in Battery Working Life: Model: FT-501 Working Voltage: Lithium battery DC-7.2V, current: 13500mAh In the standby state (only the receiving unit works): ≥96h In the response state (both receiving and sending work): ≥8h