XT-06-A型下投式GPS探空仪（XT-06-A GPS Dropsonde）
下投式探空仪与探测飞机一起使用，从飞机上投射出来后经过降落伞飘向地面，它具备对海洋，极地区域，荒芜禁地进行探测的能力，同时它也是探测极端天气的一种手段，如探测飓风。
The dropsonde as the airborne counterpart is ejected from aircraft and float to earth on a parachute.Atmospheric soundings from dropsondes provide the ability to measure conditions over remote areas such as the oceans，polar regions，and sparely inhabited land masses；they also provide a means to obtain sounding in and around severe weather systems，such as hurricanes.
技术参数（置信水平：k=2）
Technical Data(2-sigma confidence level: 95.5%)
| 温度传感器/Temperature sensor |
| 类型/Type: |
珠状电阻/bead resistance |
| 测量范围/Measurement range |
+50℃~ -90℃ |
| 分辨率/Resolution |
0.1℃ |
| 不确定度/Uncertainty in sounding |
0.5℃ |
| 湿度传感器/Humidity sensor |
| 类型/Type |
薄膜电容/thin-film capacitor |
| 测量范围/Measurement range |
0~100%RH |
| 分辨率/Resolution |
1%RH |
| 不确定度/Uncertainty in sounding |
5%RH |
| 气压测量/ Pressure Measurement |
| 测量范围/Measurement range |
1080hPa to 3hPa |
| 分辨率/Resolution |
0.1hPa |
| 不确定度/Uncertainty in sounding |
1080hPa~500hPa：1.0hPa
500hPa~3hPa：0.7hPa |
| 测风/Wind Measurement |
| 风速不确定度/Velocity measurement uncertainty |
0.3m/s |
| 风向不确定度/Directional measurement uncertainty |
3° |
| 尺寸与重量/Dimensions and Weight |
| 尺寸/Dimensions |
φ48×215(mm*mm) |
| 重量/Weight with dry-cell batteries |
200g±20g |
| 锂电池/Lithium-cell Batteries |
| 电压/Voltage |
7.5V nominal |
| 工作时间/Operating time |
100mins |
| 遥测/Telemetry |
| 频率范围/Frequence Rang |
400.15 to 406MHz or 425 to 443MHz |
| 输出功率/Output power |
100mW(max) |
| 调制方式/Modulation |
FSK |
| 数据传输速率/Data downlink |
2400bit/s |
| 测量周期/Measurement cycle |
1s |
