Table 1.
Dispersion delay (Δt) for different observing set-up configurations.
| Instrument | νlow (GHz) | νhigh (GHz) | νc (MHz) | Δ ν (MHz) | tsamp (μs) | Δt (μs) | samples delay |
|---|---|---|---|---|---|---|---|
| Effelsberg (L-band) | 1.210 | 1.510 | 1.360 | 300 | 54.6 | 1 793 000 | 32 845 |
| ALMA (Band 1) | 42.168 | 44.168 | 43.168 | 2000 | 32 | 366 | 11 |
| ALMA (Band 3) | 85.268 | 87.268 | 86.268 | 2000 | 32 | 46 | 1 |
Notes. We assume a DM = 1770 pc cm−3. νlow and νhigh are the lower and higher frequency of the bandwidth (Δ ν). The central frequency of the receiver is νc and tsamp is the sample time. For ALMA Band 1, we assume the same sample time as Band 3. At the final column is given the delay in number of samples.
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