The following table contains information about the frequency coverage, average receiver temperatures, and availability for the 12 Meter Telescope receivers. Note that the near the band edges mixer performance may be degraded.
| Receiver | Frequency Range (GHz) | Trx (K) | Availability |
|---|---|---|---|
| 3mmlo | 68 - 90 | 100 (SSB) | all year |
| 3mmhi | 90 - 116 | 80 (SSB) | all year |
| 2mm | 133 - 180 | 125 (SSB) | all year |
| 1mmlo | 200 - 265 | 200 (SSB) | late fall through spring |
| 1mmhi | 265 - 300 | 300 (SSB) | late fall through spring |
| 1mm Array | 220 - 245 | 130 (DSB) | early winter through spring |