(Manufactory)车辆从犯的天线

3. Electrical Characteristics 3.1 Dielectric Antenna Form 1No.ItemSpecificationsPost Environmental Tolerance1Center Frequency(MHz)1575.42 MHz±3 MHz2Band Width(MHz)±5 MHz±1 MHz3V.S.W.R(in BW)1.5:1—4Gain(Zenith)3 dB±0.5 dB5PolarizationRHCP—6Impedance50 Ω— 3.2 LNA/Filter Form 2No.ItemSpecificationsPost Environmental Tolerance1LNA Gain28±2 dB±2.5 dB2Noise Figure1.5 dB—3Filter Out Band Attenuation12dB Min f0+50MHz16dB Min f0-50MHz±1.0 dB4DC Voltage2.2 5 V5DC Current5 15 mA 3.3 Mechanical Form 3No.ItemSpecification1CableRG174 3m/5m or others2ConnectorSMB3Plastic HousingBlack4MountingMagnet/Adhesive 4. Reliability Condition:Temperature: 40±5°C Load:DC=5V±0.5 V Quantity: 2000pcs Sustained Time:480h 5. Environmental Specifications Post Environmental Tolerance (Refer to the form 1 2 ) Condition:Temperature range 25±3°C Relative Humidity range 55 75%RH Operating Temperature range -40°C +85°C Storage Temperature range -40°C +100°C 5.1 Moisture Proof The device should satisfy the electrical characteristics specified in form 1 2 after exposed to the temperature 40±2°Cand the relative humidity 90 95% RH for 96 hours and 1 2 hours recovery time under normal condition. 5.2 Vibration Resist The device should satisfy the electrical characteristics specified in form 1 2 after applied to the vibration of 10 to 55Hz with amplitude of 1.5mm for 2 hours each in X , Y and Z directions. 5.3 Drop Shock The device should satisfy the electrical characteristics specified in form 1 2 after dropping onto the hard wooden board from the height of 30cm for 3 times each facet of the 3 dimensions of the device. 5.4 High Temperature Endurance The device should satisfy the electrical characteristics specified in form 1 2 after exposed to temperature 80±5°Cfor 24±2 hours and 1 2 hours recovery time under normal temperature. 5.5 Low Temperature Endurance The device should also satisfy the electrical characteristics specified in form 1 2 after exposed to the temperature -40°C±5°Cfor 24±2 hours and to 2 hours recovery time under normal temperature. 5.6 Temperature Cycle Test The device should also satisfy the electrical characteristics specified in form 1 2 after exposed to the low temperature -25°C and high temperature +85°C for 30±2 min each by 5 cycles and 1 to 2 hours recovery time under normal temperature. 6. Weatherproof Put the antennas in 1m deep water for 12h, and find 100% waterproof.