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Table 1
Observational parameters.
| Data | Urumqi λ6 cm | Effelsberg λ11 cm | EMLS λ21 cm |
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| Frequency [MHz] | 4800/4963 | 2639 | 1400 |
| Bandwidth [MHz] | 600/295 | 80 | 20 |
| HPBW [′] | 9.5 | 4.3 | 9.35 |
| Number of coverages | 6(B)+4(L) | 6(B)+6(L) | 1(B)+1(L) |
| Integration time [s] | 7.5 | 6 | 2 |
| rms (I/U,Q) [mK Tb] | 0.7/0.4 | 2.0/1.5 | 15/8 |
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| Calibrator | 3C 286 | 3C 286 | 3C 286 |
| Flux density [Jy] | 7.5 | 11.5 | 14.4 |
| Polarization percentage | 11.3% | 9.9% | 9.3% |
| Polarization angle [°] | 33 | 33 | 32 |
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