3、 物理特特（以实物为准）
the physical characteristics (in order to prevail in kind)
外形尺寸: L*W*H=113.5*92.5*30(以实物为准)
Dimensions: L*W*H=113.5*92.5*30 (to prevail in kind)
重 量: 75g(以实物为准)
Weight: 75g (to prevail in kind)
工作温度: 0 到 +40℃
Working temperature: 0 ℃ to +40 ℃
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第三部分 安装及存贮
Installation and storage
一、 使用条件
Conditions of use
NWT系列数字化虚拟扫频仪使用USB或外接DC12V供电，需要远离强辐射（大功率开关电源，大功率射频发射）场合。
NWT series digital virtual frequency sweeper using USB or external DC12V power supply, need to keep away from strong radiation (high power switching power supply,high power RF emission).
使用温度0-40度。
0-40 degrees temperature.
二、预热
Preheat
NWT系列数字化虚拟扫频仪开机后最好能预热30分钟再进行测量。
NWT series digital virtual frequency sweeper boot after the best 30 minutes in the preheated prior to measurement.
二、 存贮 storage
清理干净NWT系列数字化虚拟扫频仪，装入有吸湿干燥剂的容器内可在环境温度-10 ~ +50℃条件下存贮。
Clean up the NWT series digital virtual frequency sweeper container, filled withdesiccant can be stored at ambient temperature -10 ~ +50 ℃.
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第四部分 使用说明 The fourth part
一， 硬件使用说明
Hardware instructions
接上DC12V,接上RS232/USB，连接对应的SMA连接线。如果是USB供电版本只需要连接USB插头即可。
其中电源接头内正外负。如果采用RS232和电脑，请采用直连线，即插电脑端插头和扫频仪端插头引脚一一对应连接即可。
其中电源插座和7805散热片中间有一跳线，可外接开关。2个SMA接口中间可外接LED做电源指示。如果是USB供电版本，插上USB口即可工作，无需开关。具体依据实物为准。
The DC12V, RS232/USB connected, connected to the SMA connector. If the power supply is USB version only need to connect the USB plug can be.
The power connector is negative. If the RS232 and the computer, please use thestraight line, plug computer terminal plug and a sweep tester end plug pin one oneconnected to.
The intermediate outlet and 7805 fins with a jumper, but external switch. 2 SMA interface between the external LED power indicator. If USB powered version, plug in the USB port can be work, no switches. According to prevail in kind.
硬件连接参考图
The hardware connection reference map
二， 软件使用说明
the software instructions
1， 软件安装，配置
software installation, configuration
1.1 安装USB驱动 Install USB driver
双击该文件，安装USB驱动 Double click install USB driver
1.2 安装WINNWT软件 Install WINNWT software
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先安装first，
再安装second
安装好WINNWT后，将快捷方式的属性进行更改，即可转换成中文版。
在安装好的软件快递方式处点鼠标右键，弹出属性项。设置属性可更改为中文版。 After installing the WINNWT, the attribute shortcuts to make changes, can be converted into the Chinese version.
In the software delivery installed at the point the right mouse button, the pop-upattributes. Set the properties can be changed to Chinese version.
运行图标的属性 Property operation Icon
将\更改为\Files\\AFU\\WinNWT4.08\\winnwt4.exe\app_cn.qm 更改完毕后，再启动，即为中文菜单。建议使用英文版
The \to \change after the start,then, is Chinese menu. Recommend the use of English version
1.3，设置COM口 Setting COM port
将USB插入电脑，如果是RS232接口的该步可省略。由于已经安装了USB驱动，在设备
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