Antennas–Purpose-built antennas for optimal reception and tripods for mobile use : Graw Radiosondes

Robust antennas ensure optimal reception and increase the sounding data reception range
Robust tripods can be used for temporary antenna setups
For fixed installations and field setups
Optimised for performance in the 400 MHz frequency band

No ground station can receive data without suitable antennas. Our antennas have been carefully selected to ensure the best reception quality. For synoptic stations, an omnidirectional antenna with maximum range is usually combined with a helical antenna to increase data quality in low drift scenarios. A stationary GNSS antenna receives the signal for the built-in GNSS repeater an simplifies sounding preparation. All antennas can be mounted on robust tripods for mobile use.

Key specifications
Omnidirectional antenna	Dipole antenna, 400 - 406 MHz, 3.5 dBi gain
Helical antenna	Helical antenna, 400 - 406 MHz, 3.5 dBi gain
GNSS antenna	Helical antenna, 1575.42 MHz center frequency
Tripods	Various models with 1.43 - 1.80 m height