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Table 1.
Parameters of the antennas and their receivers (frontend and software configuration).
| Parameter | A1 | A2 |
|---|---|---|
| Antenna diameter | 30 m | |
| FWHM at 1420 MHz | 30′ | |
| Mounting | Equatorial | |
| Maximum tracking time | 220 min | |
| Low noise amplifiers (a) | HEMT He | E-PHEMT |
| Filters range (MHz) | 1100−1510 | 1200−1600 |
| Electronics bandwidth | 110 MHz | 200 MHz |
| Polarization | One circular | Two circular |
| Receiver temperature | 100 K | 110 K |
| Aperture efficiency (b) | 32.8% | 30% |
| Gain (b) (Jy K−1) | 11.9 | 13.02 |
| Calibration | Noise injection at feed | |
| Instantaneous bandwidth | 112 MHz | 56 MHz |
| Polarization product | One (circular) | Total power |
| SDR models | B210 – B205-mini-i | |
| Boards per CPU | Two | |
| Max data rate per | 54 KHz | |
| Reference input | PPS | |
| Computer | CPU i7, NVMe 1.2 | |
| PCIe Gen 3 × 2 SDD | ||
| Software language | C | |
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