4 0 c m
34cm
actual image size: 26cm x 32cm
Description
The disc behind this aerial is purely decorative as the wavelength of VMF 625 line signals is about 0.5 metres. To have any significant effect, a parabolic reflector for this wavelength would need to be seven meters in diameter.
Image Details
Image Ref.
10311270
© National Museum of Science & Media / Science & Society Picture Library