Digital Radio Theodolite System

Probecom cooperates with famous Chinese insitutes and famous universities to developt meteorological radar products. Product list include stratospheric wind profiler radar, S band dual Polarization weather radar, C band dual polarization full coherent weather radar, boudray layer wind profiler radar, low-level wind profiler radar, low level wind shear alert system, troposheric wind profiler radar, mobile millimeter wave weather radar system, clound & Fog detection and prediction system, comprehensive meteorological system.

The mono-pulse angle measurement mode is adopted in this digital radio-theodolite system. Through tracking the radiosonde carried and raised up in the air by the ballon, the system can measure the temperature, humidity, atmospheric pressure at different layers of atmosphere up to 30km altitude, and calculate the wind direction & wind speed values at different atmospheric layers. Therefore, the system can provide precise meteorological information of upper air for weather forecasting, meteorological analyses and supports.

Main technical specifications

Operating frequency	L band
Antenna form	Planar array monopulse antenna
Detection range	Slant distance: ≥200km
	Altitude: ≥30km
	Azimuth: 0°~360°
	Elevation: 8°~87°
	Temperature: -90 ~ +50
	Pressure: 1060hPa ~ 5hPa
	Humidity: 0~ 100%RH
	Wind direction: 0°~360°
Detection accuracy	Angular tracking error: 0.11° in elevation, 0.07° in azimuth
	Wind direction: 5° (wind speed≥25m/s), 10° (wind speed<25m/s)
	Wind speed: 1m/s (Wind speed <10m/s),10%(wind speed> 10m/s)
	Temperature: 0.5
	Humidity:5%RH(atmospheric pressure>300hPa),7%RH(atmospheric pressure < 300hPa)
	Pressure: 1.0hPa (atmospheric pressure < 200hPa), 1.5hPa (atmospheric pressure≥200hPa)