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Дата изменения: Unknown Дата индексирования: Sun Feb 3 20:54:22 2013 Кодировка: Поисковые слова: rigel |
S-Low Receiver
Basic Information | Calibration & Beam Parameters RFI Situation Recent Events Receiver History Technical Description Contact Info |
Frequency Range (GHz): |
1.7 - 3.0
|
Name and Number:
sbl, sbl1_2, and 7, 71 (*)
|
Measured Sensitivity (K/Jy):
|
~ 8 (**)
|
Measured System Temp (K):
|
~ 34 (**)
|
Native Polarization:
|
Dual Linear
|
Beam Size (at 2.5 GHz):
|
1.8 x 2.0 arcmin
|
Available Filters:
|
3 Bandpass filters, 1.7 - 1.88, 2.04 - 2.4, & 2.6 - 3.0 GHz |
can be used in any combination or none
Warnings and Important Notes:
|
This Rx has a lot of
Resonance modesin the OMT |
|
2. Calibration & Beam Parameters:
Gain and Tsys | Cal Values | Beam Maps | Polarization | Misc. Info |
Polarization properties of this Rx has not been determined yet. However, here
is an useful documents
The Mueller
Matrix Parameters for Arecibo's Receiver Systems by C. Heiles et
al (~5MB, PS file)
A short introduction to digital
spectropolarimetry written be Carl Heiles can be found
in this PDF file
More information on calibration techniques can be found in Chris
Salter's "Note relevant
to Spectral Line User's"
Spectral scans covering the S-low receiver's bandpass was taken (by S. Stanimirovic) on Sep 20 2001. The measurement was from 1800 MHz to 2950 MHz. The largest RFI seen were: at 1940 Mhz from cellular phones, at 2700 MHz from the 2nd harmonics of the San Juan airport radar at 1330/1350 MHz, and at 2900-3100 MHz from the radar at Pico del Este.
Recent events can be found in the electronics receiver log.
Used regularly by wide-band pulsar observers. This band has also been used for SETI observations.
To find out the technical details about this receiver, just click on the appropriate icon at the top of the Receiver tabel (Only internally available -- please contact the POC for anything specific).
For further information on this receiver, please contact T. Ghosh at