美国鸟牌(Brid)AT500天线测试仪/AT-500天线分析仪参数如下:Frequency Range (MHz) 2 - 520Frequency Resolution 20 kHzFrequency Accuracy (kHz) ± 50Rho 0.000 to 1.000Match Efficiency 0 to 100%Return Loss (dB) -32 to 0 dBVSWR 1.25 MaxDirectivity (dB) 32 dB typicalMeasurement Accuracy Rho ± 0.04; Match Accuracy and Return Loss is Calculated from Rho accuracyTest Port Connector: N(F) supplied. N, TNC, UHF, BNC, male or female availableMeasurement Speed (Typical) [Single Frequency Point] - 5 readings per second typical[Frequency Sweep] - 1 sweep per second typicalField Strength [Range] - 0 to 100%, relative [Sensitivity] - Fullscale deflection and 0.22 V/m @ 400 MHz using supplied antennaInterface RS-232 protocol via DB-9 portPower Requirements AC Adapter: [Input] - 120/240 Vac; [Output] - 12Vdc, 400 mA Rechargeable NiCAD battery system. Unit may be re-charged while operating using a wall adapter (included)Dimensions 8" x 4-5/8" x 1-3/4" (204 x 118 x 42 mm)Weight [lbs (kg)] 2.0 (0.9)Storage Temperature [°C (°F)] -41 to 71 (-40 to 160)Humidity, Max. 95% ± 5% max (noncondensing)Compliance Unit complies with MIL-T-28800 Class 5 except for temperature and humidity. Unit is CE-compliant and RoHS compliant服务承诺◆产品实行“三包”服务①产品一旦售出，包终身维护；②故障产品一年内包修；③产品质量问题交货后一个星期内包换。④本产品如需要开具增值税发票，请先联系刘生。◆如有必要，省内24小时内、省外48小时内到现场，可根据用户需要提供免费的技术支技或产品行业标准。◆销售服务热线： 0769-877199088 刘小姐 商务QQ：1534994797◆技术支持热线： 0769-877199088 售后服务服务热线：0769-877199088