Table 3.
Comparison of FAST with Other Large Radio Telescopes
| Telescopes | Gain | Tsys | Beam Size | Zenith Range | Remarks |
|---|---|---|---|---|---|
| (at 1.4 GHz, K/Jy) | (at 1.4 GHz, K) | (at 1.4 GHz) | |||
| FAST | 16.1 | 18 | 2.9′ | 0°–40° | 1 |
| Arecibo | 10 | 30 | 3.5′ | 1.06°–19.69° | 2 |
| GBT | 2 | 18 | 8.8′ | 0°–85° | 3 |
| Effelsberg | 1.55 | 23 | 9′ | 1°–81.9° | 4 |
Remarks: (1) the gain and system temperature is the value for a zenith angle below 26.4°2; (2) http://www.naic.edu/science/generalinfo_set.htm; (3) https://greenbankobservatory.org/science/telescopes/gbt/; (4) https://www.mpifr-bonn.mpg.de/effelsberg/astronomers.