Table 6
Optical standing waves in HIFI and their approximate relative error contributions.
| Period (MHz) | 92 & 98 | 100 | 620 | Overall |
| Source | CBB& HBB | LO | DRTM | impact |
| Band | (%) | (%) | (%) | (%) |
|
|
||||
| Band 1 | 3–4 | <1 | – | 4 |
| Band 2 | 3–4 | <1 | – | 4 |
| Band 3 | 1–2 | 2-4 | 1–2 | 4 |
| Band 4 | 1–2 | 2-4 | 1–2 | 4 |
| Band 5 | 1 | 3 | – | 3 |
| Band 6 | <1 | 3 | – | 3 |
| Band 7 | <1 | 3 | – | 3 |
Notes. The errors caused by the standing waves are derived from continuum observations of Saturn. Careful inspection of the standing waves over the whole IF allows for classifying them and assessing the individual impacts. The overall impact column gives the impact as assessed over the whole IF rather than an rms (root mean square) of the individual errors. In bands 6 and 7 excursions attributable to the LO-mixer standing wave have been seen up to 25%. All values given here are peak-peak values divided by 2.
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