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Design parameters for NC-RUS sensors for Vitis vinifera and Coffea arabica.
| Species | Diameter of the Beam | Centre Frequency (kHz) | Frequency Band (kHz) | SNR * (dB) |
|---|---|---|---|---|
| Vitis vinifera | <25 mm | 650 | 400–900 | >65 |
| Coffea arabica | <20 mm | 300 | 200–400 | >60 |
*: No leaf between transmitter and receiver.
