I recently saw this Project SWORD Moon Bus online.
As you can see it has a standard silver radar. The radar is stood on a white stalk, which I have ringed in red.
Not only is this stalk white it also appears solid to me, a hard plastic rod, set at an angle.
My own Moon Bus radar stalk is made of thin red hollow plastic, which I have long suspected as being a DIY replacement.
What does your Moon Bus radar stalk look like?
Anyone got a a photo of one close-up?