Articles | Volume 19, issue 5
https://doi.org/10.5194/amt-19-1825-2026
https://doi.org/10.5194/amt-19-1825-2026
Research article
 | 
12 Mar 2026
Research article |  | 12 Mar 2026

Ground-based HF to VHF radar calibration by scattering off a stratospheric balloon

Toralf Renkwitz, Matthias Clahsen, and Ralph Latteck

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Short summary
We describe the use of a nearby drifting stratospheric balloon to calibrate three different radar systems. While for radars in the VHF range different calibration options exist, it is much more complicate to do this in the lower HF range. The main complication is the required distance and size of the target, which is especially challenging for vertical pointing radars. We also present the validation of proper phase calibration and the general radiation pattern.
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