Ask Dr. SETI ®
Can someone please inform me of what is the the required surface accuracy for a 3m dish? Also, which material is superior for a dish: fibreglass or metal?
The Doctor Responds:
Dish material doesn't much matter, as long as it's RF reflective. It's normally a matter of what's available, and what materials you're skilled to work with. But bear in mind that fiberglass-structure dishes still need a metallized reflector surface -- this is often sprayed on over the fiberglass.
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this page last updated 28 December 2002
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