Outline

GPS radiosonde is an Upper-air sounding instrument for measuring various types of meteorological data; wind speed, wind direction, pressure, temperature and humidity.
Wind speed, wind direction and pressure are calculated from the speed of travel and altitude obtained by GPS positioning techniques; and temperature and humidity data measured from respectively tuned thermistor and electrostatic capacitance humidity sensor.

1 sec sampled GPS data and 1 or 0.5 sampled temperature / humidity data are transmitted over PCM via a TDM network. The transmitted data is automatically processed through a data processor at the surface station.
The installed PLL oscillator employs narrow FM and conforms to ETSI.

Features

• Improved temperature and humidity sensor with highest accuracy for the Upper-air soundings


• Two lithium batteries enabling 4 hours sounding and easy operation


• Proved differential GPS fix based on years of the field experience of the existing model RS-01G


• Precise time synchronization between temperature / humidity data and GPS data


• High stability of the ETSI certified transmitter (EN 302 054 V1.1.1)


• Compact and low-density design, total weight of 150g including batteries, reducing the shocks at the time of falling to the ground


• An input to a 16bit A/D converter facilitating to connect special sensors; maximum 8 channels for ECC, KC, pressure sensor, etc.


• Upper compatibility with the existing model RS-01G and capable of using the same receiving unit as RS-01G