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information_for_astronomers:rx:s14mm
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information_for_astronomers:rx:s14mm [2024/07/09 21:56] akraus |
information_for_astronomers:rx:s14mm [2024/07/10 16:23] (current) akraus |
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| ====== 1.3cm double beam secondary focus receiver (18000-26000 MHz) ====== | ====== 1.3cm double beam secondary focus receiver (18000-26000 MHz) ====== | ||
| - | This is a two horn system epscially for continuum, spectroscopy and VLBI observations. | + | This is a two horn system especially for continuum, spectroscopy and VLBI observations. |
| ==== Overview ==== | ==== Overview ==== | ||
| ^ RX Name ^ [[information_for_astronomers:rx:bands|Band]] ^ Frequency range [GHz] ^ Polarisation^Nr. of Horns ^Horn position relativ to center of focus cabin^ | ^ RX Name ^ [[information_for_astronomers:rx:bands|Band]] ^ Frequency range [GHz] ^ Polarisation^Nr. of Horns ^Horn position relativ to center of focus cabin^ | ||
| - | | **S14mm** | K | 18.0-26.0 | dual-circular| 2 | Horn 1: Az: -95.6 arcsec, Elv: 734.2 arcsec, Horn 2: Az = 95.6 arcsec, Elv: 734.2 arcsec| | + | | **S14mm** | K | 18.0-26.0 | dual-circular| 2 | Horn 1: Az: -95.6 arcsec, Elv: 734.2 arcsec,\\ Horn 2: Az: 95.6 arcsec, Elv: 734.2 arcsec| |
| ==== Calibration Information ==== | ==== Calibration Information ==== | ||
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| | 22.85 | 1/2 | LCP/RCP | 9.0 | 74 | 1.03 | 72 | 36 | 1.41 | 79 | 36.8 | Jul 2024 | | | 22.85 | 1/2 | LCP/RCP | 9.0 | 74 | 1.03 | 72 | 36 | 1.41 | 79 | 36.8 | Jul 2024 | | ||
| | 24.75 | 1/2 | LCP/RCP | 8.0 | 72 | 1.01 | 71 | 36 | 1.57 | 71 | 34.5 | Jul 2024 | | | 24.75 | 1/2 | LCP/RCP | 8.0 | 72 | 1.01 | 71 | 36 | 1.57 | 71 | 34.5 | Jul 2024 | | ||
| + | | 22.25 | 1/2 | LCP/RCP | 8.4 | 72 | 1.05 | 71 | 36 | 1.57 | 71 | 36.8 | Jul 2024 | | ||
| + | | 23.77 | 1/2 | LCP/RCP | 8.0 | 72 | 1.03 | 71 | 36 | 1.57 | 71 | 35.2 | Jul 2024 | | ||
| ^ normalized Gain curve (G = A0 + A1·Elv + A2·Elv2)^^^ Observed in ^ confirmed ^ | ^ normalized Gain curve (G = A0 + A1·Elv + A2·Elv2)^^^ Observed in ^ confirmed ^ | ||
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| * Zenith tau values can range from 0.05 to more than 0.2. | * Zenith tau values can range from 0.05 to more than 0.2. | ||
| + | The receiver delivers the data by default in four 2.5GHz-wide IF-subbands: | ||
| + | ^Band^Frequency Range^ | ||
| + | |4|18.0-20.5 GHz| | ||
| + | |3|19.9-22.4 GHz| | ||
| + | |2|21.6-24.1 GHz| | ||
| + | |1|23.5-26.0 GHz| | ||
| - | ==== Version description for OBSINP ==== | + | Additionally, there are several receiver versions (see below) which |
| + | allow to observe two 300 MHz-wide bands, e.g. for 22.25 GHz (i.e., the | ||
| + | water line) and 23.77 GHz (NH3 (1,1)-(3,3)). | ||
| + | ==== Available receiver versions (for OBSINP) ==== | ||
| + | ^Version^Description^Details^ | ||
| + | |dualpix_dualpol_cont_OPTOCBE|standard continuum backend with 4 basebands| 4x 2.5 GHz| | ||
| + | |dualpix_dualpol_hires_h2o_nh3 |spectroscopic mode with two basebands, centered at 22.25 and 23.77 GHz | bandwidth is 300 MHz per baseband| | ||
| + | |||
| + | |||
| + | **Below here: Information is currently updated.** | ||
| ==== Receiver Bands ==== | ==== Receiver Bands ==== | ||
| - | The receiver delivers the data in four 2.5GHz-wide IF-subbands: | + | |
| - | ^Band^Frequency Range^ | + | |
| - | |4|18.0-20.5 GHz| | + | |
| - | |3|19.9-22.4 GHz| | + | |
| - | |2|21.6-24.1 GHz| | + | |
| - | |1|23.5-26.0 GHz| | + | |
| ==== Channel assignment in the MBFITS data files ==== | ==== Channel assignment in the MBFITS data files ==== | ||
information_for_astronomers/rx/s14mm.1720554969.txt.gz · Last modified: 2024/07/09 21:56 by akraus
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