User manual VAISALA RS92-AM DATASHEET

[. . . ] www. vaisala. com Vaisala Radiosonde RS92-AM P(Y)-Codeless GPS The Vaisala Radiosonde RS92-AM has a GPS receiver which is independent of the GPS C/A-code signal. [. . . ] The digital transmitter also consumes less power than analog transmitters and more channels are available in the meteolorogical frequency band. CAL-4 Calibrated The RS92-AM's PTU sensors are calibrated in the CAL-4 calibration machine. Designed by Vaisala and built in-house, CAL-4 is the world's most advanced calibration machine for the mass production of PTU sensors. Features P(Y)-codeless GPS technology for continuous wind data availability A higher level of PTU measurement performance Stable transmission complies with ETSI standard EN 302 054 Technical data Meteorological sensors TemperaTure sensor Type: capaciTive wire Telemetry +60 °C to -90 °C < 0. 4 s <1s < 2. 5 s 0. 1 °C 0. 5 °C 0. 15 °C 0. 2 °C 0. 3 °C 0. 5 °C Type: THin-film capaciTor, HeaTed Twin sensor Measurement range Response time (63. 2%, 6 m/s flow) 1000 hPa 100 hPa 10 hPa Resolution Accuracy Total uncertainty in sounding* Repeatability in calibration** Reproducibility in sounding*** 1080 - 100 hPa 100 - 20 hPa 20 - 3 hPa HumidiTy sensor Transmitter type Frequency band Tuning range Frequency stability, 90 % probability Deviation, peak-to-peak Emission bandwidth Output power (high-power mode) Modulation Data downlink Measurement cycle Synthesized 403 MHz 400 - 406 MHz ± 2 kHz 2. 4 kHz According to EN 302 054 40 mW min GMSK 4800 bit/s, digital max. 1 s p(y)-codeless Gps receiver (pdop<4) Navigation accuracy Velocity measurement uncertainty*** Directional measurement uncertainty**** * 0. 5 m/s 4 degrees Measurement range Resolution Response time 6 m/s, 1000 hPa, +20 °C 6 m/s, 1000 hPa, -40 °C Accuracy Total uncertainty in sounding* Repeatability in calibration** Reproducibility in sounding*** pressure sensor 0 to 100% RH 1% RH < 0. 5 s < 20 s 5% RH 2% RH 2% RH Type: silicon Measurement range Resolution Accuracy Total uncertainty in sounding* 1080 - 100 hPa 100 - 3 hPa Repeatability in calibration** 1080 - 100 hPa 100 - 3 hPa Reproducibility in sounding*** 1080 - 100 hPa 100 - 3 hPa 1080 hPa to 3 hPa 0. 1 hPa 2-sigma (k=2) confidence level (95. 5 %), cumulative uncertainty including: · Repeatability · Long-termstability · Effectsduetomeasurementconditions · Dynamiceffect(suchasresponsetime) · Effectsduetomeasurementelectronics For humidity T > -60 °C For pressure T < 35 °C ** Standarddeviationofdifferencesbetweentwosuccessive repeated calibrations, k=2 confidence level *** Standarddeviationofdifferencesintwinsoundings, fixed station ****Standarddeviationofdifferencesintwinsoundings, wind speed above 3 m/s Note 1: Thepressure, temperatureandhumidityperformance specifications given above are valid only when the Vaisala Ground CheckSetGC25isusedtoperformthegroundcheck, including reconditioningofthehumiditysensor. Note 2: Vaisala DigiCORA Sounding System MW31: software version 3. 52 or newer and P(Y)-codeless GPS wind finding software add-on are required. Also required is Rockwell Collins PLGRII(PartNo822-1096-013andsofwarePartNo612-0910-024)or RockwellCollinsDAGR(PartNo822-1873-002(ver. 0010), Software PartNo984-3006-002)MIL-GPSReceiver. PLGRIIorDAGR(orothercompatibleP(Y)-receiver)mustbe provided by the user (GFE) as Vaisala is not authorized to supply them. ref. [. . . ] all specifications -- technical included -- are subject to change without notice. [. . . ]