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information_for_astronomers:rx:p170mm [2022/12/23 11:30]
akraus
information_for_astronomers:rx:p170mm [2025/06/04 18:19] (current)
akraus
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-====== ​17cm prime focus receiver, UBB (1300-6000 MHz) ======+====== ​P170mm - ultra broad-band ​prime focus receiver (1300-6000 MHz) ====== 
 + 
 +This is an ultra broad band (UBB) 2-channel system covering a range from 1300 to 6000 MHz. 
 + 
 +==== Overview ==== 
 + 
 +^ RX Name ^ [[information_for_astronomers:​rx:​bands|Band]] ^ Frequency range [GHz] ^ Polarisation^Nr. of Horns ^Horn position relativ to center of focus cabin^ 
 +| **P170mm** | L/S/C | 1.3-6.0| dual-linear| 1 | Az: 0 arcsec, Elv: 0 arcsec |
  
-This is an ultra broad band (UBB) 2-channel system covering a range from 1300 to 6000 MHz.  
-Obviously, there is still a lot of RFI present. ​ 
  
-**Currently,​ the system is in commissioning. If you are interested to use it, please contact the staff.** 
  
 ==== Calibration Information ==== ==== Calibration Information ====
  
 ^ 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.|A+B |2x lin |~50 |~22 |1.4 |16 |50 | | |570 |first ​estimates ​|+|1.41 |A+B |2x lin |5.7 |19.8 |1.3 |15.2 |46 |1.90 |68 |569 |first observations | 
 +|1.665|A+B |2x lin |6.7 |20.6 |1.3 |15.8 |46 |1.78 |73 |497 |first observations | 
 +|2.35 |A+B |2x lin |8.8 |16.1 |1.3 |12.4 |46 |1.68 |77 |363 |first observations | 
 +|3.35 |A+B |2x lin |11.0|16.5 |1.3 |12.7 |46 |1.66 |78 |256 |first observations | 
 +|4.85 |A+B |2x lin |12.5|18.8 |1.3 |14.5 |46 |1.71 |76 |174 |first observations | 
 +|5.54 |A+B |2x lin |11.6|19.0 |1.3 |14.6 |46 |1.64 |79 |156 |first ​observations ​|
  
  
 ^ normalized Gain curve (G = A0 + A1·Elv + A2·Elv2)^^^ Observed in ^ confirmed ^ ^ normalized Gain curve (G = A0 + A1·Elv + A2·Elv2)^^^ Observed in ^ confirmed ^
-|A0 = 1.0|A1 = 0.0|A2 = 0.0|2022| |+|A0 = 1.0|A1 = 0.0|A2 = 0.0| | |
  
 **Comments:​** **Comments:​**
 +  * The system delivers two basebands, 1.3-2.6 GHz and 3.0-6.0 GHz. Currently, it is only possible to record both bands in parallel for pulsar observations (timing and search mode), but not yet for continuum or spectroscopic observations.
 +  * Usable / useful continuum bands are e.g. 1.405-1.415 GHz, 1.66-1.67 GHz, 4.7-5.0 GHz, 5.3-5.6 GHz.
 +
 +  ​
 +==== Available receiver versions (for OBSINP) ====
 +
 +^Version^Description^Details^
 +|EDDPOL | spectro-polarimeter backend for continuum observations in the lower band|with 64k channels |
 +|EDDPOL3G | spectro-polarimeter backend for continuum observations in the upper band|with 64k channels |
 +|EDD_PULSAR_TIMING| pulsar folding mode observations | coherent dedispersion,​ configurable channels and subints |
 +|EDD_PULSAR_SEARCH| pulsar search mode observations ​ | coherent filterbank, configurable channels and time samples (down to 32$\mu$s) |
   ​   ​
  
  
  
information_for_astronomers/rx/p170mm.1671791410.txt.gz · Last modified: 2022/12/23 11:30 by akraus