Upper-air measurement
iMet-50Pilotsonde
The iMet-50 pilotsonde is based on the full-featured iMet-54 radiosonde design. It offers winds-only sounding profiles at an affordable price. The design incorporates a robust multi constellation GNSS receiver for wind vector calculations.

80 g
Weight
>180 min
Operating time
99
GNSS channels
GPS + GLONASS
GNSS systems
01 / Technology
Key features
- Multi-constellation GNSS wind calculation
- Compact and light weight
- Compatible with all InterMet ground antenna / receivers
- XData interface for 3rd party sensors
- Synthesized crystal controlled oscillator
02 / Technical data
Specifications
General
| Battery | Lithium |
| Operating time | >180 minutes |
| Weight | 80g |
| Dimensions | 235 x 70 x 30 mm |
| Power / Control | push button |
GNSS (GPS) Receiver
| Channels | 99 Channels |
| GNNS Systems | GPS, GLONASS |
| Cold Start Acquisition Time | 35 s (nominal) |
| Reacquisition Time | 1 s (nominal) |
| Horizontal Position Accuracy | 2.5 m (CEP) |
Transmitter
| Type | Synthesized |
| Maximum range | >250 km* |
| Frequency Band | 400.15 – 406 MHz |
| Frequency Stability | ±2 kHz |
| Deviation (peak to peak) | 4.8 kHz |
| Output Power | 200mW |
| Modulation | GFSK |
| Data rate | 4800 bit/s |
| Frequency selection | Wireless or push button |
| Push-button frequencies | 402, 403, 404, 405 MHz |
| Wireless frequency selection | 400.15 – 406 MHz (10 kHz resolution) |
| Emission Bandwidth | According to EN 302 054 |
| Sideband Radiation | According to EN 302 054 |
Wind
| Wind Speed Range | 0 to 180 m/s |
| Wind Speed Resolution | 0.1 m/s |
| Wind Speed Uncertainty | 0.15 m/s |
| Wind Speed Reproducibility | <0.10 m/s |
| Wind Direction Range | 0 to 360° |
| Wind Direction Resolution | 0.01° |
| Wind Direction Uncertainty | 1° (For wind speeds > 3m/s) |
| Wind Direction Reproducibility | 1° |
03 / Product options
Ordering information
| Product Description | Product Code |
|---|---|
| 403Mhz Pilot Radiosonde | IMET-50 |
04 / Resources
Product documents
Brochures and product information direct from InterMet.