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information_for_astronomers:rx:p200mm [2013/11/01 22:32] akraus |
information_for_astronomers:rx:p200mm [2015/06/23 12:59] (current) akraus |
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^ Frequency [GHz] ^ Channel ^ Polarisation ^ Tcal [K] ^ Tsys [K] ^ Sensitivity [K/Jy] ^ SEFD [Jy] ^ Aperture Eff. [%] ^ TMB/S [K/Jy] ^ Main Beam Eff. [%] ^ FWHM [arcsec] ^ Last update ^ | ^ Frequency [GHz] ^ Channel ^ Polarisation ^ Tcal [K] ^ Tsys [K] ^ Sensitivity [K/Jy] ^ SEFD [Jy] ^ Aperture Eff. [%] ^ TMB/S [K/Jy] ^ Main Beam Eff. [%] ^ FWHM [arcsec] ^ Last update ^ | ||
- | |1.400 |A |LCP |1.2 |21 |1.55 |14 |54 |2.0 |75 |553 |June 2008 | | + | |1.400 |A |LCP |5.0 |20 |1.54 |13 |54 |1.88 |66 |580 |June 2015| |
- | |1.400 |B |RCP |1.3 |27 |1.55 |18 |53 |2.0 |74 |553 |June 2008 | | + | |1.400 |B |RCP |5.0 |20 |1.56 |13 |54 |1.88 |66 |580 |June 2015 | |
- | |1.660 |A |LCP |1.6 |18 |1.54 |12 |54 |2.0 |76 |490 |October 2013 | | + | |1.660 |A |LCP |1.6 |18 |1.54 |12 |54 |1.85 |65 |490 |October 2013 | |
- | |1.660 |B |RCP |1.5 |19 |1.52 |13 |53 |2.0 |75 |490 |October 2013 | | + | |1.660 |B |RCP |1.5 |19 |1.52 |13 |53 |1.85 |65 |490 |October 2013 | |
^ 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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**Comments:** | **Comments:** | ||
* Strong interferences can occur in this frequency regime, eg. between 1.50 and 1.64 GHz! | * Strong interferences can occur in this frequency regime, eg. between 1.50 and 1.64 GHz! | ||
+ | * There are two values for the noise cal, different by about 6dB. See the table below to learn which receiver version uses which value. | ||
==== Version description for OBSINP ==== | ==== Version description for OBSINP ==== | ||
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==== Tcal measurements ==== | ==== Tcal measurements ==== | ||
+ | ** Tcal as measured in November 2014 **\\ | ||
+ | {{:information_for_astronomers:rx:18cm_tcal_nov14.png|}} | ||
+ | |||
+ | ** Tcal as measured in June 2013 **\\ | ||
{{:information_for_astronomers:rx:18cm_tcal.png|}} | {{:information_for_astronomers:rx:18cm_tcal.png|}} | ||
Note that although the lines continue it is not possible to observe at frequencies between 1425 MHz and 1560 MHz. | Note that although the lines continue it is not possible to observe at frequencies between 1425 MHz and 1560 MHz. |