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: http://www.naic.edu/~astro/RXstatus/430G/430greg.shtml
Дата изменения: Unknown Дата индексирования: Mon Feb 4 00:54:41 2013 Кодировка: Поисковые слова: storm |
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430-MHz Gregorian
Basic Information | Calibration & Beam Parameters RFI Situation Recent Events Receiver History Contact Info |
Frequency Range (GHz): |
422-442 MHz
Plot of frequency response can be found here
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Name and Number:
430-MHz Gregorian
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Measured Sensitivity (K/Jy):
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11*
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Measured System Temp (K):
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50*
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Native Polarization:
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Dual circular
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Beam Size (at 0.430 GHz):
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10' x 12'
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Available Filters:
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10 MHz, 20 MHz and 30 MHz |
click here
Warnings and Important Notes:
|
click here |
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2. Calibration & Beam Parameters:
Gain and Tsys | Cal Values | Beam Maps | Polarization | Misc. Info |
Tsys values include the contribution from the sky (i.e., Tsky is not
subtracted out). Detailed information here.
Noise diode 1 (high)
Left: 95.5 K
Right: 102.55 K
Noise diode 1 (low)
Left: 10.03 K
Right: 10.37 K
Noise diode 2 (high)
Left: 93.5 K
Right: 91.03 K
Noise diode 2 (low)
Left: 12.44 K
Right: 11.91 K
Not available. However, information on the coma parameter, sidelobe
strength and beam efficiency can be found
here.
Full polarization characterization not yet available.
Very strong RFI at 427 and 432 MHz was seen to affect 430 MHz receivers in both channels since the last week of February 2003 until the start of 2005.
For further information on this receiver, please contact Paulo C. Freire at