EVLA Memo #119 Wide-Band Sensitivity and Frequency Coverage of the EVLA and VLA L-Band Receivers
نویسندگان
چکیده
We determine the sensitivities of the EVLA and VLA antennas over their full tuning ranges through analysis of the correlation coefficients. Interim EVLA antennas can tune over the full range of 940 through 2200 MHz. The prototype L-band OMT shows good performance over its design frequency range. The betterperforming interim EVLA antennas meet the Project Book sensitivity requirements above ∼1150 MHz. VLA antennas are capable of tuning from 1225 through 1900 MHz, with some limited capability between 1100 and 1225 MHz.
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EVLA Memo #152 Characterizing the Sensitivity of the EVLA at L-band
We present sensitivity measurements of the EVLA at L-band between 0.95 and 2 GHz. These are obtained using three EVLA antennas that are equipped with the final, EVLA-compliant L-band receivers. The reported SEFD values meet and/or exceed the EVLA sensitivity requirements over about 70% of the band, but are too high by 12–38% over the frequency range 1425–1750 MHz.
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