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TECHNICAL. The dish is a Portuguese made Famaval 2,4m, expanded to 3,1m by the addition of side extensions or "petals". The LNB is an Invacom 0,3dB quattro, which feeds into a Spaun 16 way multiswitch. The feedhorn is from Cyprus, and has a larger than normal waveguide. |
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The dish from the front. Note that a dish doesn't need to be high, merely to have a clear line of sight to the satellite. The bottom of the dish is about 15cm off the ground. |
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The dish from another angle. Note how I have located it in as sheltered position as possible to minimise buffeting from high winds. |
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View from the rear showing how the petals bolt on to the main dish, and also how the base is not only bolted into the ground but also embedded in concrete. |
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Rear view showing the guy wires which assist in holding everything firm, and can also provide a small, but very precise, azimuth adjustment. |
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LNB and feedhorn, showing the large waveguide. Note that I have earthed the LNB using the socket provided by Invacom. This is NOT a lightning conductor, merely an aid to getting the least possible interference between the LNB and the muitiswitch. It is common on a dish of this side for the foacl length "sweet point" to be at the end of travel, hard against the triangle clamp. Finally, note the skew of the LNB, correct adjustment of which is vital to maximise signal quality. |
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Front view. The dish in the background is 1,4m. |
