moonbase
Small Dish Man
- Joined
- Mar 29, 2004
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Hi,
I found an old Precision C120 Ku feed today that is a slightly different design to the later version. Would anyone know if there was a technical reason for the change of design, pictures attached?
The old design feed is the crusty red one and it has a longer collar on the dish facing side and the ring of the innermost scalar is recessed in the coller. The more recent design has the shorter collar on the dish facing side and the ring of the innermost scalar is protruding from the collar.
The actual length of the waveguide tube in both feeds is the same, it is the scalar positioning and collar that are different. Over to Channel Hopper/John/Trust1/Other Gurus..... ?
Rgds
I found an old Precision C120 Ku feed today that is a slightly different design to the later version. Would anyone know if there was a technical reason for the change of design, pictures attached?
The old design feed is the crusty red one and it has a longer collar on the dish facing side and the ring of the innermost scalar is recessed in the coller. The more recent design has the shorter collar on the dish facing side and the ring of the innermost scalar is protruding from the collar.
The actual length of the waveguide tube in both feeds is the same, it is the scalar positioning and collar that are different. Over to Channel Hopper/John/Trust1/Other Gurus..... ?
Rgds
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