Table 2
Summary of the SEPIA ALMA Band 9 specifications and performance.
| Item | Specifications | Comment |
|---|---|---|
| Technology | DSB SIS mixers, dual polarization | |
| RF band | 599.77–722.15 GHz | |
| IF band | 4–12 GHz | DSB operation |
| IF bandwidth | 2 × 8 GHz | Currently limited by the FFTS to 2 × 4 GHz |
| DSB noise temperature | 75–125 K | Averaged over RF band ≈ 100 K |
| Cross-polarization | −15.5 dB | At the cartridge RF window |
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