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information_for_astronomers:rx:s130mm
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information_for_astronomers:rx:s130mm [2013/03/12 14:10] 127.0.0.1 external edit |
information_for_astronomers:rx:s130mm [2024/08/01 08:08] (current) akraus |
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| ====== 13cm secondary focus receiver (2200-2300 MHz) ====== | ====== 13cm secondary focus receiver (2200-2300 MHz) ====== | ||
| - | This receiver was constructed for S/X VLBI observations together with the 3.6cm system. It is a single channel system (RCP) illuminated by a paraboloid mirror (with a central opening) which is built around the 3.6cm horn. There is no S130mm receiver version, but the S-band signal is available as a 5th channel of the S36mm X-band receiver (see this {{information_for_astronomers:rx:sfk.png?linkonly|picture}}). | + | This receiver was constructed for S/X VLBI observations together with the 3.6cm system. It is a single channel system (RCP) illuminated by a paraboloid mirror (with a central opening) which is built around the 3.6cm horn. There is no S130mm receiver version, but the S-band signal is available as a 5th channel of the S36mm X-band receiver (see this {{information_for_astronomers:sfk_20190807.png?linkonly|picture}}). |
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| + | ==== Overview ==== | ||
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| + | ^ RX Name ^ [[information_for_astronomers:rx:bands|Band]] ^ Frequency range [GHz] ^ Polarisation^Nr. of Horns ^Horn position relativ to center of focus cabin^ | ||
| + | | **S130mm** | S | 2.2-2.3 | RCP | 1 | Az: 19.0 arcsec, Elv: 1593.0 arcsec| | ||
| ==== Calibration Information ==== | ==== Calibration Information ==== | ||
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| **Comments:** | **Comments:** | ||
| * The special configuration (tertiary mirror) leads to an additional loss of sensitivity. | * The special configuration (tertiary mirror) leads to an additional loss of sensitivity. | ||
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| + | **Below here: Information is currently updated. | ||
| + | ** | ||
| ==== Version description for OBSINP ==== | ==== Version description for OBSINP ==== | ||
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| | 12 | VLBA | cross | cos AB | | | 12 | VLBA | cross | cos AB | | ||
| | 13 | VLBA | cross | sin AB | | | 13 | VLBA | cross | sin AB | | ||
| + | |||
| + | ==== Spectroscopy modes and resolution ==== | ||
| + | ^ BW ^ nchan ^ nu ^ Df ^ Dv ^ dv ^ | ||
| + | ^ MHz ^ ^ MHz ^ kHz ^ km/s ^ km/s ^ | ||
| + | | 100 | 32768 | 2200 | 3.1 | 0.416 | 0.482 | | ||
| + | | 100 | 32768 | 2250 | 3.1 | 0.407 | 0.472 | | ||
| + | | 100 | 32768 | 2300 | 3.1 | 0.398 | 0.461 | | ||
| + | | 500 | 32768 | 2200 | 15.3 | 2.079 | 2.412 | | ||
| + | | 500 | 32768 | 2250 | 15.3 | 2.033 | 2.358 | | ||
| + | | 500 | 32768 | 2300 | 15.3 | 1.989 | 2.307 | | ||
| + | |||
| + | BW ... band width\\ | ||
| + | nchan ... number of spectral channels\\ | ||
| + | nu ... center frequency\\ | ||
| + | Df ... Channel separation (in frequency)\\ | ||
| + | Dv ... Channel separation (in velocity)\\ | ||
| + | dv ... Velocity resolution (dv=1.16*Dv) | ||
| ==== Tcal and Tsys measurements ==== | ==== Tcal and Tsys measurements ==== | ||
information_for_astronomers/rx/s130mm.1363093804.txt.gz · Last modified: 2013/09/30 13:49 (external edit)
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