User Tools
information_for_astronomers:rx:p170mm
Differences
This shows you the differences between two versions of the page.
| Next revision | Previous revision | ||
|
information_for_astronomers:rx:p170mm [2013/03/12 14:05] 127.0.0.1 external edit |
information_for_astronomers:rx:p170mm [2024/01/17 18:36] (current) akraus |
||
|---|---|---|---|
| Line 1: | Line 1: | ||
| - | ====== 17cm prime focus receiver, UBB (600-3000 MHz) ====== | + | ====== 17cm prime focus receiver, UBB (1300-6000 MHz) ====== |
| - | This is a new ultra broad band (UBB) 2-channel system covering a range from 600 to 3000 MHz. Be aware that there is also a lot of RFI in this range. The system is mainly used for pulsar observations. | + | This is an ultra broad band (UBB) 2-channel system covering a range from 1300 to 6000 MHz. |
| + | **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 ^ | ||
| - | |0.85 |A+B |LCP+RCP |97.0 |48 |1.25 |38 |44 | | |930 |Sep 2012 | | + | |1.41 |A+B |2x lin |5.7 |19.8 |1.3 |15.2 |46 |1.90 |68 |569 |first observations | |
| - | |1.4 |A+B |LCP+RCP |188.0 |56 |1.25 |45 |44 | | |650 |Sep 2012 | | + | |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 |LCP+RCP |156.0 |53 |1.25 |42 |44 | | |400 |Sep 2012 | | + | |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|Sep 2012| | | + | |A0 = 1.0|A1 = 0.0|A2 = 0.0| | | |
| **Comments:** | **Comments:** | ||
| - | * New receiver, from 2012, preliminary data - more testing needed! | + | |
| - | + | ||
| - | ==== Version description for OBSINP ==== | + | |
| - | + | ||
| - | ^ RX Name ^ Wavelength [cm] ^ Frequency (center) [GHz] ^ Nr. of Horns ^ | + | |
| - | | **P170mm UBB (0.6-3 GHz) ** | 50.0-10.0 | 0.6-3.0 (1.8) | 1 | | + | |
| - | | **Version:** | **Comment** ||| | + | |
| - | |1. Continuum/Line | Continuum and spectroscopy version ||| | + | |
| - | |2. Pulsar | Pulsar Version ||| | + | |
| - | | **Horn offsets** [arcsec]| 0.0, 0.0 ||| | + | |
| - | + | ||
| - | + | ||
| - | ==== Channel assignment in the MBFITS data files ==== | + | |
| - | + | ||
| - | Note that the narrow line and VLBA IF channels are usually only available when the specific line version of the receiver was selected. In addition for most receivers with narrow line channels the cables at the patch board need to be connected by the receiver group. | + | |
| - | + | ||
| - | To select different channel numbers in OBSINP, the online plot, or the toolbox the numbers have to be specified like c(1)+c(2) to add channel 1 and 2. E.g. channel 1 and 2 contain the LCP and RCP broadband channels, then "OnlPlot pen='c(1)+c(2)'" or "toolbox use='c(1)+c(2)'" will select these channels. In OBSINP the pen can be directly specified in the receiver selection menu. | + | |
| - | + | ||
| - | Abbreviations:\\ | + | |
| - | SB: narrow band channel (Schmalband-Kanal), 100 MHz band width\\ | + | |
| - | BB: digital broad band channel (Breitband-Kanal), band width varies for different receivers\\ | + | |
| - | VLBA: VLBA IF, 500 MHz band width\\ | + | |
| - | optical: optical fibre with 4 GHz of band width\\ | + | |
| - | BW: band width\\ | + | |
| - | TP: total power | + | |
| - | ^ P170mm UBB (0.6-3 GHz) ^^^^ | ||
| - | ^ Channel ^ IF ^ Pol. ^ Comment ^ | ||
| - | | 1 | optical | LCP | TP A | | ||
| - | | 2 | optical | RCP | TP B | | ||
| - | ==== Tcal and Tsys measurements ==== | ||
| - | TODO | ||
information_for_astronomers/rx/p170mm.1363093501.txt.gz · Last modified: 2016/12/12 11:01 (external edit)
Except where otherwise noted, content on this wiki is licensed under the following license: CC Attribution-Noncommercial-Share Alike 4.0 International
