That's better. The gradient green version reminded me of a submarine too much, but this one looks modern, so it's good.
My gf said that the new green version is pretier, but the black one is easier to look at.
If you want the radar to stand out and be obvious, than this might be good compromise. Another way you can go about it would be to add a pulse of somekind: either a line like in the submarines or a faint concentric circle emanating from the ship in the center of the radar.