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The planned availability of the various bands on the EVLA is
shown in Figure 1. No EVLA antennas have the VLA U band (15 GHz)
frequency available. U band receivers will begin to be installed on
EVLA antennas in 2011.
Figure 1 - EVLA band availability as a function
of time. C4 denotes the presence of the prototype 4-station WIDAR
correlator, and C10 the initial 10 station WIDAR correlator. The L-
and C-band curves reflect the planned installation of Ortho Mode
Transducers (OMTs), which will enable good polarization behavior
outside the 'old' L and C band ranges (1.25 - 1.75 GHz for L-band,
and 4.5 - 5.0 GHz for C-band).
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