A highly polished aluminium parabolic dish reflector with a 20mm central hole. The dish is 12 inches or 300 mm diameter and 3 inches/75 mm deep. I'm holding it by one edge, leaving a big thumb print on the nice clean surface

Notices where this attachment appears

1. Embed this notice
   Neil G4DBN (g4dbn@mastodon.radio)'s status on Wednesday, 19-Jun-2024 11:45:33 JST Neil G4DBN

   in reply to

   Here's one of the smaller Edmund parabolic dishes. This is the 12 inch/300 mm version. These take a 48 mm diameter Cassegrain sub, the 18 inch/450 mm versions take a 68 mm sub and the 24 inch/600 mm versions take a 98 mm sub and need rather stronger mountings, 6mm carbon fibre tube instead of 4mm pultruded CF rod. Shiny! #hamradio