iMet-2 Radiosonde
The iMet-2 radiosonde is a performance-tested, high accuracy radiosonde. Launched in 2009, it has been flown globally; from the Arctic’s to the Equator and even on research vessels. Since it’s launch, the iMet-2 has been revised several times taking full advantage of sensor and calibration improvements.
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- Thin capacitive polymer humidity
- Micro glass bead thermistor temperature
- Optional solid state pressure
- 12 Channel C/A code GPS
- Dry cell (alkaline) batteries
- Switchable power on/off
- No pre-flight temp & humidity re-calibration required
- Switch controlled frequency
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System Overview
Operating Principle GPS Wind Finding Nominal Frequencies 403MHz & 1680Mhz Range >250km* Altitude >30km* Battery Alkaline dry cell Operating time > 2 hours Weight 220 grams Sampling Rate 1 / second Case Expanded Polystyrene Transmitter
Tuning Range 400.15 – 406MHz Output Power 300mW Transmission 2400 baud, FM Bandwidth 20kHz Stability Crystal controlled GPS receiver
Type C/A code, 12 Channel Tracking Continuous Update rate 1Hz Acquisition Time 50 seconds (cold start) Position accuracy 10m Wind velocity accuracy 1.0M/s Altitude accuracy 15m Temperature
Type Bead Thermistor Range -95°C to +50°C Accuracy ±0.2°C Resolution <0.01°C Response time 2 seconds @ 1000hPa Humidity
Type Capacitive Range 0% to 100% RH Accuracy 5% RH Resolution 0.1% RH Response time 2 seconds @ 25°C
60 seconds @ -35°CPressure (optional)
Type Piezoresistive Range 2 to 1070 hPa Accuracy 0.5 hPa Resolution <0.01 hPa Response Time <1.0 seconds -
Product Description Product Code 403MHz Radiosonde IMET-2-AA 403MHz Radiosonde with pressure sensor IMET-2-AB 1680Mhz Radiosonde IMET-2-BA 1680MHz Radiosonde with pressure sensor IMET-2-BB 1680MHz RDF radiosonde IMET-2-BI 403Mhz Research radiosonde IMET-2-AR
