Satellite dish Feed Horns

Make a cardboard feed-horn for

When the signal reaches the viewer's house, it is captured by the satellite dish. A satellite dish is just a special kind of antenna designed to focus on a specific broadcast source. The standard dish consists of a parabolic (bowl-shaped) surface and a central feed horn. To transmit a signal, a controller sends it through the horn, and the dish focuses the signal into a relatively narrow beam.

The dish on the receiving end can't transmit information; it can only receive it. The receiving dish works in the exact opposite way of the transmitter. When a beam hits the curved dish, the parabola shape reflects the radio signal inward onto a particular point, just like a concave mirror focuses light onto a particular point.

In this case, the point is the dish's feed horn, which passes the signal on to the receiving equipment. In an ideal setup, there aren't any major obstacles between the satellite and the dish, so the dish receives a clear signal.

In some systems, the dish needs to pick up signals from two or more satellites at the same time. The satellites may be close enough together that a regular dish with a single horn can pick up signals from both. This compromises quality somewhat, because the dish isn't aimed directly at one or more of the satellites. A new dish design uses two or more horns to pick up different satellite signals. As the beams from different satellites hit the curved dish, they reflect at different angles so that one beam hits one of the horns and another beam hits a different horn.

The central element in the feed horn is the low noise blockdown converter, or LNB. The LNB amplifies the radio signal bouncing off the dish and filters out the noise (radio signals not carrying programming). The LNB passes the amplified, filtered signal to the satellite receiver inside the viewer's house.

Chaparral Satellite Dish Feed Horn Polorotor Throat Cover C-Band Digital Home Satellite Dish
CE (Chaparral)
  • Protects feed throat from bugs
  • bees and other obstructions that reduce signal
Titanium Satellite CS1 Conical Scalar Kit for Offset Satellite Dishes LNBF and Feedhorns
CE (Titanium Satellite)
  • Conical Scalar Kit for mounting on .5 - .8 FD Offset Type Dish
  • Optimize Signal collection for standard and miniBUD installs
  • High Quality Hardware with Allen Head screws and tool
  • Beautiful Cool Grey color poly coat over heavy alumiumum cast
  • Limited Lifetime Warranty against Defect
Titanium Satellite CS1 Conical Scalar Kit
Speakers (Titanium Satellite)
  • UV protected cool grey color poly coating
  • universal poly 50 - 68mm feed horn clamp and hardware
  • RX - Offset Type
  • Aluminum

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