Open Access
Table 1.
SPADE main characteristics.
| Array parameters | |
|---|---|
| Number of antennas | 8 |
| Radius of circle | 5.5 m |
| Ground plane dimensions | 20 × 20 m |
| Effective area at 50 MHz | 139 m2 |
| Spectrograph performances | |
| (from September 2025 onwards) | |
| Center frequency | 50 MHz |
| Total bandwidth | 50 MHz |
| Frequency resolution | 3.052 kHz |
| Time resolution | 49.15 ms |
| 3 dB beam width in azimuth | |
| 35 MHz | 35° |
| 50 MHz | 27° |
| 65 MHz | 22° |
| 3 dB beam width in elevation | |
| 35 MHz, 50 MHz, 65 MHz | > 30° |
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