一、天線特性AntennaSpecificationDAS1575R(25 25 4)中心頻率CenterFrequency 1575.42MHz 3MHz電壓駐波比V.S.W.R 1.5:1帶寬BandWidth 5MHz帶外衰耗Attenuation 100MHz＞30dB阻抗Impendence 50ohm最高增益PeakGain ＞3dBic Basedon7 7cmgroundplane增益范圍GainCoverage ＞-4dBicat 90 ＜0＜+90 (over75%Volume)天線極化Polarization RHCP二、放大器規(guī)格LNASpecificationDAM1575A4A1放大器增益LNAGain(Withoutcable) 27dB Typical噪聲系數(shù)NoiseFigure 1.5dB輸出電壓駐波比V.S.W.R ＜2.0直流電壓DCVoltage 3-5V 0.3V直流電流DCcurrent 15mA Max三、結(jié)構(gòu)特性MechanicalSpecificationDAM1575A4A1重量Weight ＜100(克)gram外型尺寸Size 50 39 16mm電纜Cable SYV-50-2 3meterlongorother RG174 3meterlongorother連接器型號(hào)Connector SMA固定方式Mounting 磁性 Magneticbase外殼顏色Housing 黑Black四、低噪聲放大器原理LNA 省略五、尺寸圖 Dimension45X39x15mm 五、環(huán)境特性EnvironmentalSpecification工作溫度WorkingTemp -40℃~+85℃極限溫度StorageTemp -40℃~+100℃